Section 1

PROLOGUE

“There’s a reason dark magic is left untouched. And there’s a reason why some magic would be better off left untouched. That’s what the past week has shown me, as my shrinking magic exposed my friends and I to dangers no pony should be subjected to.”

Yours faithfully, Twilight Sparkle P.o.F.

Twilight sighed as she nodded to Spike to send the message, and with a burst of green flames it was off. “Ugh, I hope Celestia is understanding. This has been quite an ordeal.”

“Well let’s just be glad it’s over, Twilight” Spike offered assuringly, as Twilight looked up to the evening sky, spotting the first star of the night, and the two of them sat in the grass and mused over what had happened over the past few hectic days.

Meanwhile in Canterlot, Celestia had received the scroll by her fireplace. She opened it and proceeded to read the vast amount of text Twilight had written. With weary eyes she began to read, picturing in her head the exact events unfurling.

CHAPTER 1

It had been well over a month since the events following Twilight Sparkle’s development of a potion known as Zeromac. Twilight and Spike had managed to forget about their microscopic adventure and move on with their busy lives, but poor Rarity had found the discoveries inside Rainbow Dash’s body very scarring. In fact, on this particular morning she and Spike had discussed it briefly over their breakfast in Ponyville’s town square.

“…and it was genuinely the most hideous dress I have ever seen, Spike.” Rarity moaned. “I’ve seen…nostrils that are more elegantly constructed than that hideous ensemble!”

“You’re right, you have. So have I” Spike winked at her, but the fashionista frowned.

“Honestly Spike, I don’t know what to do. The whole thing was so unpleasant, I really can’t look at poor Rainbow Dash the same anymore…how can we go on and never tell her?”

Spike held up a claw. “Come on, Rarity – you know we can’t do that. We made a promise to those microponies. It would destroy them, and it would change Rainbow from the confident pony she is.”

“Where is she, anyway?”

“She’s off with Twilight and Pinkie at the moment - something about pies, I dunno.”

“Oh Spike, I feel awful.”

“You just have to put it out your mind, and focus on other things. I won’t mention it again.”

Rarity offered a smile as the two hugged and enjoyed the rest of their morning chat.

A few weeks had passed since that meal, and Rarity had now overcome her PTSD to the extent that she had gone to Manehattan and worked on a seasonal line of headpieces in her new boutique. It had been a very successful time for her, and she had loved it! Spike, on the other hand, had been assisting Twilight in daily chores in the Ponyville castle, even looking after it whilst she had been off antiquing with Sunburst as well. A few nights ago they had held a sleepover at the castle, and the girls had come and shown Starlight Glimmer the fun of a slumber party. Rainbow Dash had made them play truth or dare, Fluttershy had gone to bed early, and Pinkie Pie had even made a cake for the occasion – it had been a blast! However, Twilight had recently been getting agitated out of the desire for a new challenge. Her royal duties at the moment didn’t extend to the thing she loved most: magic. The pair were in the library reading one morning when Applejack and Fluttershy came in to see them. “Hi girls, what’s up?” Twilight turned.

“Um, hiya Twilight. We wanted to ask y’all for an opinion” Applejack said.

“Okay, what’s wrong?”

“We um…well, have you noticed Rainbow Dash behaving differently recently?” Fluttershy muttered.

“A little bit – she seems more quiet than usual. Has something happened?”

“Shoot no, but we’re two of her closest gals and we don’t like seein' her look so down and moody, it ain’t like her” Applejack insisted.

Concerned, Twilight walked over to them and offered a reassuring smile. “Have you tried asking her what’s troubling her?”

“Well I asked if she was okay the other day – she was sittin’ on one of them rainclouds and lookin' down on us all with a scowl. So I asked if she wanted to go for a run, but she darn ignored my sassafrassin’ question!” Applejack grumbled.

Fluttershy looked down sadly. “Um, Twilight? Last night there was a Wonderbolts exhibition in Cloudsdale for the Mayor, and Rainbow Dash was supposed to lead the squadron at Spitfire’s request.”

“So?”

“Well, she didn’t turn up.” The other two ponies gasped. “Now I think she’s on probation... So I tried asking if she wanted to go for a sandwich like we used to when we were fillies, but same again –she sighed and flew off.”

Twilight frowned. “That’s too odd. I’m going to go and have a talk with her.” With that, she headed for the door.

“Good luck getting a word outta her” Applejacked called out to her glumly.

“Rainbow Dash!”

Rainbow looked up from the cloud she was sat on, and saw Twilight calling her. Reluctantly, she flew slowly down to the ground to respond to the Princess of Friendship. “What’s up, Twilight?”

Twilight smiled kindly. “There was an amazing event on last night in Cloudsdale, why weren’t you there?”

Rainbow groaned, “Because I wasn’t.” Twilight frowned. “Okay, I wasn’t there because I was tired.”

“Rainbow Dash, since when has your laziness gone so far as to get in the way of –“ She was cut off by the realisation that the cyan pegasus had started flying slowly away. Spike had come to see now, and suggested to Twilight that she use science to understand the flyer’s bad mood: smiling at the prospect of using her magic and love of science, and having Rainbow as a test-subject, she caught up with her. Hearing a moan of annoyance from Rainbow’s mouth, Twilight thought for a moment, then tried her approach. “Soooo…I’m conducting this awesome experiment in my lab in the castle later, do you want to come and help out?”

A slight chuckle emerged from Rainbow. “No offence Twilight, but science is so just totally for nutty eggheads.” And with that she was gone.

Visibly hurt, Twilight returned to Spike. “So what happened?” the dragon asked.

“I don’t know, Spike. But something’s really upset her I fear.”

---

Later that day, Twilight summoned her friends – minus Rainbow Dash – to the castle throne room, and they held an indignation meeting. “Alright girls, listen up. Our friend Rainbow has been a bit moody lately, so I thought we’d all try and brainstorm why she’s acting so weird.”

“She’s totally completely utterly being the biggest meanie in town!” Pinkie Pie exclaimed.

“I’ve known her for so long, she’s never been this dismissive” Fluttershy thought aloud.

“This is just dreadful. Rainbow Dash is a loose cannon” Rarity said, reclining on her trademark stress sofa.

Twilight hushed them. “I realise that Rainbow has been behaving rudely, but maybe something’s happened to cause her to feel like this. Something’s obviously not right.”

The ponies fell silent for a moment, as they contemplated Twilight’s point. Finally Applejack spoke. “No, I’m sorry y’all. She’s meant to be loyal, and she knows that we’re all here for her whenever trouble’s a-brewin.”

Pinkie Pie nodded, remembering her recent bust-up and valuable lessons with Rainbow about dishonesty and pies. Twilight rubbed her chin slowly as the ponies were quiet again. “She’s just…I want our Rainbow Dash back!” Pinkie cried.

“What is going on in that pony’s head?!” Rarity said dramatically; Twilight snapped her head towards her as her eyes lit up.

“I guess we can’t really ever know what she’s thinking,” Fluttershy said sadly, as Applejack nodded.

“No, wait; we can…” Twilight intervened. The girls looked up at her, confused. “I mean, erm…I think I have an idea on how we can cheer Rainbow up, but I’ll need a bit of time to work by myself on it.”

“Ooooh, another Twilight spell - she never stops!” Pinkie said cheerily, as the five ponies left Twilight to get on with her work.

“So…what’s this all about, Twilight?” Spike asked her once they were alone.

“Don’t you see, Spike? What Rarity said: ‘what’s going on in that pony’s head? We’ve been there.”

Spike looked nervous. “Twilight, if you’re talking about what I think you’re talking about, we vowed never to use that magic ever again.”

“I know, Spike. But we need this. I certainly do. It’s out of loyalty to our friend - she’s the Element of Loyalty, Spike! In the name of friendship, we must return to the City of Rainbow Dash!”

Spike face-palmed slowly, and massaged his temples. “Okay, firstly – I don’t think anyone who was involved wants anything to do with this magic again - Rarity, Luna…Discord even… secondly, Princess Celestia and Luna decommissioned the research of Zeromac after 'its potential as a potion was labelled a significant threat to our welfare'.”

“I still have the formula, silly. Making it will be the challenge but also the fun!” Twilight said, but Spike was worried. Twilight had that crazy look in her eyes, the kind seen before when this studious alicorn got too wrapped up in her magic. She had been craving some sort of adventure for a while now, and so Spike sighed heavily and accepted it.

“Okay, fine. But we should really think about our strategy before we do this.”

Twilight stroked his head. “Ah, Spike – what a good and useful helper you’ve grown up to be…”

---

“Absolutely not.”

“Come on, it’d be doing everyone a huge favour.”

“No way, sorry.” Rarity crossed her hooves and stuck her snout up in the air, turning away from Spike and Twilight. The pair looked at each other in despair. “Really Twilight, I was just getting over that horrendous affair before you brought this up again. It was disgusting and wrong, and I still feel awful for Rainbow. Why do you even need me?”

“Because, as one of the initial…pilgrims…your experience could prove valuable with whatever – or whoever - we encounter in there. You know what to expect.”

“I’m sorry Twilight, but I just don’t think it’s necessary for me to join you. I can only offer you…the best of luck – oooaahh” she burst into tears as she spoke, clearly upset at the idea of the Zeromac once again. Sweetie Belle poked her head round from the door of the room quietly.

“Rarity, Rainbow would do this for you if it meant helping you get better.” Spike said, once she’d calmed down a bit.

Twilight thought and then added, “What if you didn’t have to stick around for too long?” Rarity looked confused. She explained, “if you just accompany us as we first go in, once we’ve seen what the problem is, we’ll let you go back out and be done with it.”

Rarity sniffed. “I suppose Rainbow has…always been supportive of my fashion endeavours. Even though she has no idea about ‘la mode’. I could teach those City Hall fools up there a thing or too about it!” she managed a smile, as Spike cheered and hugged her.

“Thank you, Rarity. Your generosity really knows no bounds.” Twilight said calmly.

By the time it had approached evening, Twilight had managed to convince Princess Luna to accompany her to the castle once she had raised the moon. The princesses headed into the lab and, once more, Twilight explained the purpose of her mission, and how she would desperately need Luna and her magic. To her surprise, Luna barely even argued; she simply shrugged and said: “Once I’ve got everypony’s dreams going for the night, I think we should be able to carry out this task. But remain silent before my sister; for she would seldom permit the use of dangerous potions like Zeromac.” Twilight had smiled and thanked her as they began preparing to make the potion, but Luna had protested that she could obtain the developed version of Zeromac Discord had concocted, currently stored in the Canterlot Royal Laboratories from last time, whilst all the guards slept: this potion could not only shrink an entity to microscopic size, but also regrow the test subject. They agreed to meet up later with the assembled crew, when they would carry out their mission.

As the time drew closer, Twilight and Spike were slowly walking through the town back to the castle. “I can’t risk Rainbow doing anything damaging to her insides whilst we’re in her body,” Twilight muttered, “so I’m going to have to ask somepony to keep her distracted.”

Spike broke a sweat. “That will sound very suspicious…”

“I may have to bend the truth a little, Spike. You go back to the castle and wait with Rarity.” Twilight sighed, and went to go find Fluttershy. The shy pegasus was in her cottage, making a cup of tea. “Fluttershy, you’re Rainbow’s oldest friend – so her condition should mean a lot to you, yes? I am about to tell you something extremely secretive and private, nopony is to hear of this conversation - understood?”

Startled by this sudden visit and ominous tone, Fluttershy cowered. “Y-yes, Twilight, of course. What i-is it?”

“You remember my potion Zeromac? Well I’m going to use it to enter Rainbow Dash’s body, and try and literally pick her brain to see what she’s so upset about.”

Fluttershy gasped. “Oh, are you sure that’s wise, Twilight? Spike was almost killed the last time we tried this - Rainbow nearly digested him, accidentally!”

“Spike will be safe, don’t worry. He might come with me, he hasn’t decided. What I need you to do, Fluttershy, is keep Rainbow Dash busy tomorrow; make sure she doesn’t do anything too brash or reckless – it could make things hard for me in there. Can you do that?”

Fluttershy nodded slowly, deeply disturbed by the whole idea. With an appreciative hug, Twilight gave her a tracking device – to be used discreetly – and returned to her assembled crew in the throne room, thinking… Now I have my crew, the next step is only a small issue…

CHAPTER 2

“Okay guys, stand back.” Twilight prepared her horn and Luna joined too, as they used their magic to hoist the beaker of potion up, hovering above the huddled foursome. Just as the two alicorns began pouring, the door of the room swung open and Scootaloo came rushing in with her camera round her neck. What in Equestria?

“WAAAIITT!” Scootaloo yelled as she hurled herself into the huddle – and before anyone could do anything about it, they had vanished from where they stood.

All around them, the microscopic universe was as they had remembered: dust particles were the size of buildings, a groove in the wooden ground was like a stretching canyon, and the horizons went far beyond their tiny eyes could see. Twilight turned to Scootaloo, her eyes glaring with fury. “Scootaloo, what on Earth do you think you’re doing here? What have you done?!”

Scootaloo looked down. “I had to come…Sweetie Belle told me she overheard you guys talking about saving Rainbow Dash from something, and I just…well, she’s like my big sister, I can’t stand by and do nothing while she acts weird like this.”

“She’ll certainly be a big sister for you now” Spike muttered, as Rarity nudged him quiet.

“Scootaloo, dear – this is a very dangerous thing you’ve done” Rarity explained soothingly. “We’re about to embark on a journey you may be unable to either assist us in or tolerate.”

“I may know more about Rainbow Dash than you think. Inside-out.” Scootaloo said suggestively, receiving quizzical looks from Luna and Rarity.

With a sigh Twilight rolled her eyes, accepting the situation. They turned and the two alicorns produced a magic bubble within which they were able to travel in the air to Rainbow’s Cloudominium. “It’s a good thing Discord developed the Zeromac further, so one’s magic is no longer limited by it” Luna observed, as Twilight nodded. Rarity herself tried using her magic to brush her hair, much to Spike’s amusement.

Rainbow Dash was fast asleep, snoring loudly in her bed. She could never have seen the tiny purple orb floating towards her, for even as it approached her closed eyelids it couldn’t have been much bigger than a breadcrumb. It hovered towards her nostrils as a massive snore erupted from her open-hanging drooling mouth below.

“Jeeez, Twilight, we could’ve used some ear protection!” Spike said from within the orb, as the others held their ears in equal discomfort.

“Um, princesses – why don’t we go in through her mouth?” Scootaloo asked innocently.

Twilight turned, “because, Scootaloo, the way she’s breathing would make oral entry futile; we’d get exhaled right away. This way allows the nose hairs to protect us and secure ourselves in there.” Scootaloo simply shrugged as the tiny lilac-blue orb approached the left nostril of Rainbow Dash’s immense nose before them. They flew in, immediately engulfed by the darkness…for now. As they came deeper in they were greeted by the otherwise-peculiar sight of streetlights dotted below them on the nasal passage’s floor. To the gang, it was merely expected: they’d all been here before. Scootaloo seemed to be unimpressed even, as if it was something she’d also seen times before. A vast highway meandered its way through the nose-hairs and various alcoves of the passage, traffic strewn about in an ongoing mess of cars. Rainbow’s snores could still be heard, and as air came rushing in behind them it almost seemed to boost them further in. Eventually they passed the obligatory billboard: Welcome to the City of Rainbow Dash! Scootaloo was amused by this, and began taking pictures of some sights as they hovered past: a construction site labelling one route of the nose ‘blocked’, a shopping mall built into a sinus, and a wind farm of giant turbines presumably deriving energy from the gusts of air. The gang looked around as they begun to pick up something more unsettling: there was an unpleasant vibe about the place, and everypony seemed either sad and quiet or aggressive and violent. As the alicorns steered their orb to the brain, they got closer to some of them. They were the same as before, cellular ponies with almost transparent bodies, but their demeanour betrayed their otherwise-friendly appearance.

Breaking the magic orb, the five of them set foot on the ground for the first time since entering the city. Spike giggled as Twilight sighed, panting from the spell: “I’m certainly getting the run-out I needed for my magic studies!” They stood before City Hall, with its building rising high up into the massive brain that dominated this neighbourhood ominously. The neighbourhood, on the other hand, had clearly seen better days. They gasped as they observed cracked and decaying buildings, derelict houses and incomplete developments; graffiti and vandalism were everywhere, and streetlights flickered if they weren’t already out entirely. “I know things shut down at night but this is ridiculous” Twilight muttered, as Luna simply stared open-mouthed beside her. Even the brain above them seemed to have dimmed the lights which dotted all over it, and the nerves which shot out in all directions were void of any indication of the transportation systems which flowed through them with such vibrancy.

As they looked around, a passer-by shoved Rarity out the way, to which she huffed before Spike ran after them and stopped them. “What gives?”

“What do you want, kid?”

“How come this place is so run-down? And why is everybody behaving odd?”

He grunted. “Why don’t you ask our new Mayor…” and with that he carried on his way into a dark street.

Spike frowned and turned to face Twilight. “New mayor…”

Twilight’s face twitched. “Discord…” she said - to Rarity and Scootaloo’s gasps – “he always said he had a plan for this place.”

“Discord was here?” Scootaloo asked, “How can you tell?”

Ignoring the question, Twilight set off towards City Hall angrily. “Let’s find out what really is going on in this pony’s head.” She set off to the doors and they were greeted by some of the microponies who recognised them from their previous visit months ago. Even Marjorie – the previous mayor’s secretary, still there – offered them a warm hello. She proceeded to intercom the Mayor and he replied to let the visitors up to see him. They boarded the elevator and stood in silence.

They walked slowly into the office, which was promisingly the exact same as it was: the walls were vast glass panels which spanned ¾ of the length of the round room, offering those magnificent views over the district; various monitors and screens depicting body parts flickered and hummed around the desk. The Mayor stood up to greet them and they gasped: he was not a micropony. Really, the gang didn’t know what he was. He resembled a stallion, built and muscly, but his body was more curved, and he had immense transparent wings which were tucked behind him. He had two antennae protruding from his head, which ended at nasty-looking points. Honestly, he looked like a Breezie gone wrong. “Welcome to the City of Rainbow Cra...Dash, how nice to have some unexpected visitors turn up spontaneously in my busy office” he spoke with a gravelly accent, and his sarcasm exuded a sense of cockiness almost befitting a pony like Rainbow Dash.

Whilst Rarity looked shocked at this inhospitable comment, Twilight cleared her throat: “Mr. Mayor, how could you let such a good city fall into disrepair and look so dishevelled?”

“Oh, citizens having their various arguments is hardly any of my concern…” he stretched, and lay back in his chair lazily. “All I need from them is cooperation” he laughed.

Scootaloo blurted, “Rainbow Dash is my sister! You can’t just act like nothing’s wrong!”

The Mayor sat up, “My my, what a feisty one we have here – darling, nothing is wrong...hmm sister, eh?” He pressed an intercom, "Marjorie, get me somebody from Family Archives."

“But –“ Luna protested.

“I’m sorry,” he held up a hoof, “but you’ll appreciate that I’m extremely busy: this city never really sleeps anymore.” He reached for the intercom and buzzed Marjorie: “Marjorie dear, escort these ponies out of my office…like, now.”

Presently the elderly mare came in and they reluctantly followed her out. “Marjorie, what in Equestria has happened here?! What happened to the old mayor we knew?”

Marjorie sighed as they boarded the elevator down, “Oh, Action Tremor - he hasn’t been seen for a while. He just sort of disappeared when the new guy came in…think he moved somewhere quiet.” With that, she bid farewell and saw them out the building.

The gang stood in the plaza wondering what to do. A clock displayed on an old building told them that the sun would be coming up shortly, and sure enough a few unlucky microponies began to appear and start their early days. They then noticed one of those strange Breezie-like creatures floating down a sidewalk. Again, it behaved rudely – not looking where it went, bumping into pedestrians and rudely gesturing at them; spitting on the pavement, and even laughing as it scratched the side of a cellular building to wear it down. Twilight frowned as she turned to Rarity. “Rarity, you may have got your wish sooner than you expected.”

“Whatever do you mean?”

“I mean that you must return to the normal world. I need you to deliver a message.”

Rarity looked surprised but couldn’t contain her happiness, relieved of her duties sooner than she’d thought. “Okay Twilight, what must I do?”

“Luna and I will try and use our magic to teleport you out of the city. We can’t use this tricky spell too often, so we’ll have to get it right first time.” Rarity gulped, but the princess pressed on: “Find Fluttershy; she might be with Rainbow Dash later so try find her before then. You need to ask her about this Breezie business – ask her if she’s heard of such thing as a ‘bad’ Breezie. When you find out, find a way of getting the message back here into Rainbow’s body – hidden message, signs we can see through the eyes or something.”

Rarity nodded and looked nervous as the two alicorns summoned their magic. With a snap, Rarity was gone, and the quartet looked at each other nervously, hoping the spell had worked.

It had. Rarity blew a sigh of relief, dusting herself off in her bedroom, and she headed out the door into the morning sun.

CHAPTER 3

Fluttershy had woken up early this morning. She had a job to do, and she wasn’t going to let herself be the reason why Twilight couldn’t carry out her mission. She wanted to keep Rainbow Dash preoccupied as long as she could, and so she set off to Cloudominium to pick her up; she already had something in mind. As she flew over the quiet streets, she could have sworn she heard somepony call her name from below, but she shrugged and continued to Rainbow’s. Flying through the window, she nudged her sleeping friend.

Rainbow groaned. “Uuugh, what is it, Fluttershy? I’m trying to sleep.”

“I know, but I have something really exciting to show you that I just know you’ll enjoy.”

Rainbow tried to turn in her sheets, but it was no use - the sun was up, she was awake now, and Fluttershy was adamant. “Fine. This better be good.” They set off before Rainbow had even time to brush her mane or teeth.

They flew up to Cloudsdale and eventually arrived at the performance arena. Rainbow rubbed her eyes tiredly as a presenter began speaking to the small audience assembled there. “What's going on, Fluttershy?”

“Well, Zephyr Breeze’s hair salon didn’t work out, so he’s trying to become a racing flyer. He’s about to audition – I thought you could offer him some valuable advice, or at least stay for moral support.”

“Why should I do that? He’s always putting the moves on me, and he’s a failure.”

“He’s only a failure when he does something I can’t offer help with – at least my closest friend can help with this endeavour.”

With a grunt Rainbow crossed her arms and slumped back. “Fine, but don’t blame me if I go back to sleep.” With that, she produced a pair of headphones and put them over her ears.

When Zephyr’s turn came, he crashed into a bush far down below, and Fluttershy and Rainbow flew down to check on him. Before they could return to the arena, Rarity yelled Fluttershy’s name. She turned and saw the white unicorn racing towards her. “Rarity! What’s going on?”

“Oh Fluttershy, finally – I need to ask you a question…urgently” she glanced at Rainbow, who was engrossed in her music, oblivious of this conversation – or that Rarity was even there! “Fluttershy, are you aware of a Breezie being evil?”

The Pegasus gasped, “a bad Breezie? That’s impossible.” Rarity let out a small gulp as she broke a sweat.

At this point Rainbow Dash opened an eye and removed her headphones. “What’re you guys talking about?” Rarity dashed off before any response was offered, and Rainbow scowled.

“Erm…Rainbow Dash? I don’t suppose you’ve ever heard of an evil Breezie before?” Rainbow raised an eyebrow, but Fluttershy explained, “I mean, can something as good or innocent as that really turn bad or change?”

Rainbow Dash frowned, “oh, I see what you’re doing. Why? Think you’ll get an inside story from me?”

Thinking her cover had been blown, Fluttershy cowered. "Oh gosh Rainbow Dash, I'm sorry...I didn't mean to - "

“It’s fine” Rainbow interrupted, “I actually have heard of them. They’re called Eevies. I had this totally weird dream once where I was fighting these things when Princess Luna came and told me about them. They’re an ancient species, descendants of Breezies, who were very advanced; they wanted to use their technology to conquer all of Equestria, then the planet blah blah blah. They came from a forest near where Griffinstone is today, and Luna says she and Celestia fought them for ages until they finally wiped them out shortly after dealing with Spike’s attempts to behave like a princess in Canterlot, haha. But, apparently a small remainder managed to shrink into like, a really small size and freeze themselves. Luna says they buried themselves underground near where Sweet Apple Acres is I think, and were never seen or heard from again.”

Fluttershy paused and soaked in this new information. She realised that this could be directly related to a potential discovery from Twilight into Rainbow’s behaviour – if only Rarity had stuck around! “Thanks, Rainbow…um, did you want to have another nap by any chance, catch up on your beauty sleep? Or I think Scootaloo was looking for you earlier… I just have to go feed Angel before we go and relax like you wanted to do.”

Rainbow suspiciously raised an eyebrow. “Okay…you’re acting a bit weird Fluttershy...but I guess I could do with another nap. I’ll see you by the lake.”

“Phew,” Fluttershy sighed, swiftly bolting over to Applejack once she saw her in the street, pinning her down. “Applejack, have you ever dug deep underground on the farm?”

Applejack was startled and spoke through her shock: “Well, a couple years back Applebloom and I had a picnic here with Rarity and Rainbow Dash and their lil’ sisters, and we were playing this ol’ game Applebloom and I love – y’all gotta dig a trench as part of the game.”

Fluttershy shuddered. “And…how was the picnic?”

“A hootenanny of a time! Applebloom and I made us some of ma trademark apple-peanut butter sandwiches!”

Fluttershy backed off. “Oh, erm, thanks Applejack.” And she ran off, leaving Applejack scratching her head bemused. Those Eevies must have somehow got through to Rainbow! I have to tell Twilight, but now how can I get her attention from inside her? The shy pegasus thought hard, and decided to find Rarity. Rarity was decorating tapestries in the castle throne room, and once again Fluttershy charged her and asked if she had heard from Twilight.

Rarity looked around nervously. “Ahem, Twilight sent a message to me via…alicorn magic! Yes, I was able to read her urgent message in my head clearly, she must have quite a telepathy spell!” she broke a sweat as she fumbled her lie.

Fluttershy responded, “Well we have to find a way of getting a message back to her!”

“Message about what?”

“The Eevies! The evil things, they might have affected Rainbow Dash!”

Rarity’s eyes widened as she understood what they had to do. She remembered one of Twilight’s suggestions and presently used her magic to bring a quill and scroll to her, upon which she wrote their findings down. She then placed it in a bottle, and extracted a droplet of the potion from the floor there. She was able to shrink the bottle to a tiny size – not quite microscopic, but about the size of a poppy seed – and using her magnifying glass she showed it to Fluttershy. “Do you think you could get Rainbow Dash to swallow this?”

Fluttershy winced, “I guess I’ll have to.”

---

Rainbow Dash was sitting on her sunbed by the lake, her black shades covering her eyes, and was slowly sipping on a straw of an appetising smoothie. When she heard hoofsteps, she lowered her sunglasses and saw Fluttershy approaching. Taking out her headphones, she laid back on her sunbed and asked, “Is Angel happy now?”

“Yes.”

“Good, now you can properly chillax, Fluttershy.”

As the two lay there, Fluttershy waited until Rainbow turned her head to one side, then she dug up the tiny bottle, so small she could barely see it. She had balanced it delicately on her nose, and now proceeded to drop it into Rainbow’s drink. “Your smoothie looks nice and thick.”

“Huh? Oh yeah, it is. You wanna taste?”

“Oh no, I couldn’t – you enjoy it.”

“I will. It’s so thick a straw doesn’t even help.” With that, Rainbow removed the straw, tilted her head back, and downed the remainder of the glass as Fluttershy looked on and checked the tracker Twilight had given her, allowing the slyest of smiles to spread across her face.

Section 2

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CHAPTER 4

The gang had been roaming the city streets of Brain Central borough when their attention was eventually drawn to posters and advertising boards depicting a concert going on in the Ears Valley; as it turned out, the Vestibulocochlear Nerve transit line was packed with crowds of festival-goers all heading to this concert. Princess Luna and Spike were keen to go; Luna because she thought it might better her reputation as a well-meaning princess to learn how such events works, and Spike because he had always liked concerts, especially one that Rainbow was hosting! Curiosity got the better of the two of them, but this caused friction with Twilight and Scootaloo. They were adamant that they should be searching for messages or any indications which might help in their ongoing investigation. Scootaloo in particular was desperate to save her idol from any trouble - even if a gig inside Rainbow's ear might have been the coolest thing she could imagine doing... "You must be joking" Twilight scoffed at her dragon.

"No Twilight, come on! We can afford to have a look around; we may even get some answers" Spike suggested.

"This is ridiculous. We need to be looking around, not off at some festival wasting time. I think her stomach may be a good place to start."

"Princess Twilight, I feel it may be advantageous for our search" Luna pipped in.

"Yeah" Spike agreed, "We'll get more answers surrounded by ponies there than you will just by standing around here!"

"We'll just see about that!" Twilight huffed at him, and the four split into pairs. Although initially angry at her friends' desertion, she began to think to herself whilst Scootaloo looked miserable beside her. Can it be, that whatever negative energy is in this place is already affecting us?.

And so, as Twilight and Scootaloo hailed a cab and disappeared down a tunnel headed Downtown, Luna and Spike endured a crowded ride to the station where the herds of fans disembarked and headed down the ear canal. Music was blasting down the waxy corridor, and the pair were surprised at how loud it was. “I didn’t think this was Rainbow’s kind of music” Spike shouted over the noise, as the punkish rock blared out of speakers set up around a stage. Luna smiled and absorbed all the sights and sounds of the scene. The performers were cellular in composition, not quite like the microponies but more simple organisms – nonetheless, they were all dressed up in black and were playing their instruments intensely to the cheers of ~3000 citizens. The outer Ears Valley was a strange area; the outside world was practically within reach, normally visible through a tiny hole at the end of the seemingly-endless ear canal. On this occasion, however, there was no outside light to be seen – this made the duo nervous. Using a smaller magic orb for the pair of them, Luna flew down the canal over the concert, way down to the end. The music became louder and louder until they eventually realised that Rainbow had something in her ear: a headphone. The giant earbud soared up into the sky, the speaker diaphragm’s tiny grooves the size of craters, so big they could see through them to see all the wiring behind. The orb mercifully didn’t allow much sound to pass through, otherwise they’d have been exposed to decibels unparalleled in history! They returned to the gig and began asking around if anypony knew of an evil Breezie or suspicious citizens. Unfortunately for them, this was a festival and nobody was in any mood to have a serious discussion or offer help to obvious tourists. Spike looked at Luna, "I think we may have got sucked into this..."

Luna nodded. “Let us head back downtown, we need to be somewhere where we can see anything Rarity may try to tell us” she decreed, and they boarded the transit line and watched a television with a news network providing updates from the various parts of the body. Spike’s attention was caught by a report which seemed to depict the stomach.

“Luna, look!” He pointed at the screen as the broadcast went on.

“An enormous intake of chilled smoothie is set to cause delays in the digestive highways later today, so prepare yourselves for traffic jams, folks – What? Copy that, yeah, let’s avoid any acid reflux, Joyce…Breakdown officials and RDPD officers were left dumbstruck earlier as an unidentified object was found among the smoothie contents. Studies are ongoing whilst…”

“That must be it, let's go!” Spike pipped, as a number of passengers groaned and started complaining to each other about the report. Spike, meanwhile, felt sad for leaving Twilight, but hoped they might reunite in the stomach.

---

The stomach was just how they remembered it: a beachside resort, a marina and harbour, with massive cruise-liners adorning the horizons of the acidic lake. Various large submarines were also docked at this strange place. As ever, it was vibrant and full of life – with microponies and the Breezie things enjoying the purified waters nearer the shores and strolling along the boardwalk, even if it was also looking a little dishevelled and in need of renovations. Hotels were now crumbling, and a large stilted casino was completely closed off, with evidence of corrosion all along one side. Right in the centre of this vast lake sat an immense pile of mush; pinkish-red in colour, and giving off steam and vapour due to its sheer coldness. As if it were a cherry on top, the ‘unidentified object’ sat atop the mound of smoothie, as tiny boats surrounded it and began the laborious breakdown task. Within a few minutes the object finally broke free and splashed down through the mush into the stomach acid, sending a large wave towards the beach. A klaxon warned citizens to get onto land, and once it had calmed, the gang and numerous citizens stood in awe as the object became apparent: it was a bottle. How Rainbow Dash had swallowed a bottle this small was anyone’s guess, but the princesses had both suspected it had something to do with Rarity, and so flew towards it unaware of the other, leaving both Spike and Scootaloo on the pier. As Spike walked slowly along the pier, he bumped into Scootaloo. "Oh. Um, hi Scootaloo." Scootaloo looked unimpressed, so he continued: "Luna and I feel bad for breaking off like that. We didn't even have much luck. Guess we should've gone with our gut, like you did." Scootaloo laughed at the pun and gave him a little hug, then she asked where Luna actually was. "She went off to investigate that pink stuff floating out there" he gestured towards the open waters. Scootaloo's eyes widened and she explained that Twilight had done the exact same thing! At this point Spike spotted a familiar face: the police officer he’d questioned the first time they’d discovered this place. Smiling, he headed over to him and struck up conversation, introducing Scootaloo – who began obsessively photographing it all - and admiring his shining RDPD badge.

Twilight and Luna, meanwhile, had reached the bottle, far off into the open waters, and inevitably caught sight of each other. "I'm sorry about earlier Luna, I shouldn't be so uptight. I trust the concert was fun?" Twilight asked hopefully, but Luna rolled her eyes and shook her head. They laughed and recommenced snooping around. They observed that, whilst they were microscopic, this glass bottle couldn’t have been more than a millimetre or two high. It had a scroll inside, and setting themselves down on the mound of cold smoothie – smelling a little less appealing now than it might have done for Rainbow – they used their magic to squeeze the giant scroll out of the bottle and read its message. In the background, various vitamins and fibre organisms were presenting their documentation to Border Control officials who had travelled by boat with the Breakdown team.

The message was informative and detailed, neatly signed by Rarity, and after it congratulated them on their teleportation spell it explained all about the Eevies and Rainbow Dash explaining them to Fluttershy, but more importantly…how Rainbow Dash came to know of them. “Luna, is there something you’re not telling me?” Twilight asked impatiently.

“Hey!” came a manly shout; Twilight and Luna looked down to see a Breakdown worker snarling at them. “This area is off-limits and dangerous for unauthorised personnel. Beat it!”

With a huff the two flew back to shore, and Luna bowed her head. “It’s true, I’ve seen these species before. The Eevies. Truly evil things. I didn’t recognise them at first; I couldn’t believe they were still around.” She sighed, but Twilight urged her on. “I don’t remember why I bothered telling Rainbow Dash about them; it must have been one of those dreams of hers where she likes to take on and fight a whole bunch of whatnots…ugh, my sister and I thought we had defeated the Eevies, but apparently not.”

“They must have relocated and somehow found a new home inside Rainbow Dash.” Twilight considered, as they returned to the pier to find Spike and Scootaloo reunited. "Guys we mustn't fall apart like that. We need to stick together as a unit, because I fear that breaking up is just what these damn things want us to do! I don't know what exactly is going on with things around here yet, but I want you here because I know we can crack this together. Everypony okay?"

"Yes, Twilight."

"Sorry, Twilight."

After a group hug, she turned to the police officer who'd remained loitering nearby. “Hello officer”, Twilight addressed him. “May I ask you a few questions?”

“Spike here's already been doing that for a while, but go ahead.”

“What are Eevies doing in this city?”

“It’s a long story, Princess Twilight.” The gang gasped. “Don’t be so surprised, it’s not every day we see outside folk – larger folk – making their way into this place, and I sure wasn’t going to forget one of Rainbow’s best friends in a hurry. Oh, and her sister of course,” he winked at Scootaloo, who blushed.

“So what happened?”

“Some time ago, the Eevies came into the city in these odd capsules. They came in with a sandwich I think, but they were quickly overthrown and I believe only a few survived and escaped, to the bowels. We had captured and interrogated these survivors initially, to learn of their background. We even sent for some of City Hall's Memory Department experts – claiming to have prior knowledge of these creatures, thanks to you, Princess Luna – and after wearing them down we eventually got a story out of them.”

“And…?” Twilight, Spike and Scootaloo all asked in unison.

“Basically, you know the capsules they shrunk and froze themselves in? The survivors said these capsules attached to Applejack’s fur when she was digging them up accidentally. Apparently she then brushed herself, and the capsules fell into the sandwich that our dear Rainbow proceeded to eat unaware. See, the capsules could not be activated until a specific substance ‘defrosted’ these centuries-old critters. Only recently did they finally emerge from their chilled tombs…and ever since, they’ve been slowly taking over our wonderful city…” he looked down, ashamed as if he alone were responsible.

The gang paused as they absorbed this information. Behind them, a loudspeaker announced to the beachgoers: “Traffic update: Small Intestine Toll on Route 101 blocked, due to clog from earlier arrival of smoothie. Stay cool, citizens”.

Spike spoke up next: “what was the substance that activated the capsules?”

“I’m afraid I was never told. None of us were. We were simply instructed to stop them at all costs. The DAA – um, Dashies Antibodies Army - were on it in a flash…kind of a ‘destroy first, ask questions later’ job, I suppose.”

Twilight pressed, “Do you know what happened to the old mayor – 'Axon Tremor' or something?”

The officer’s eyes widened. “Action Tremor hasn’t been seen for a while. I believe he was last seen by one of my colleagues on a patrol in the left kidney a week ago.”

The gang all exchanged glances. “Thank you officer, we’re sorry that this city has got so out of order. Don’t you worry; we’ll fix this.”

“Ah good. I had hoped that was why you were here, as opposed to just sightseeing again!” And with a chuckle he walked off.

The gang huddled up as Twilight assumed charge: “Right, we’ve got to find a way of getting to the kidneys. We need to find Action Tremor and get some information. If anyone knows what that substance is, he will. Maybe then we can use what we discover to turn it against those Eevies.”

Nodding in unified agreement, the others proceeded to look around for a subway station, but a cab seemed the easiest option and they soon hailed one, on their way again. “So much for hospitality; last time it was all private helicopters and VIP limos.” Spike moaned.

“That was then, Spike. The city obviously isn’t right at the moment, and maybe Action Tremor can give us some answers, anything – even a limo for you, Spike.” She offered a smile as the cab turned onto a busy highway route – Urinary Tract Route 23 – and sped its way down a twisting and winding tunnel.

CHAPTER 5

The cab dropped the gang off in a bustling district at the centre of the left kidney. The Renal Artery highway soared over their heads into this hub, and all around them various microponies were going about their day, albeit rudely and aggressively. It’s so strange to see them all acting so hostile, Twilight thought. The kidneys – apparently within the Lower South Side borough – were quite an industrial neighbourhood filled with factories and power stations. All around there were aqueducts, canals, reservoirs and two large dams dominating the distant view. The canals, most of which were simply rivers of blood but also a few glass-covered tubes labelled LK Canal 2: Waste Fluid, RD Sanitation Department – flowed straight and smoothly through the streets and traffic, the cars manoeuvring out of the way of them. The largest blood canal was even being enjoyed by a few barges and small boats, floating slowly down the current which was presumably to transport them to other parts of Rainbow’s vast body. A newspaper colt was shouting a headline on the street corner near where the foursome stood: “Extra, extra: Mayor’s Hard Cider spree set to force temporary kidney closure!” Luna gasped at this awful news, whilst Scootaloo shook her head sadly.

“She loves her cider, she just loves her cider…” the filly said.

At this point, Twilight approached the colt. “Excuse me, my name is Princess Twilight – I’m a friend of Rainbow Dash in the outside world – and I –“

“Woah! You’re friends with Rainbow Dash?! That must be like the coolest thing ever!” he interrupted.

Twilight looked confused and was taken aback. “W-why would you even…? I mean, you live inside her, you should know her better than me!”

“Yeah but, to be friends with what we’re all working hard for!” he insisted.

Twilight pushed on. “Well if that’s the case you’ll appreciate that this place is NOT at the level it should be. I would like you to tell me where I can find Action Tremor.”

The colt sniggered. “That old pushover? He lives alone, somewhere downstream on a dingy old barge. Good riddance, if you ask me.”

Twilight thanked him and went to find the others, who had wandered into a café nearby, the Kidney Stoners’ Café. After telling them where the old mayor was, she walked back out with them and found a small boat rental along the main canal. What Twilight didn’t see was the newspaper colt proceed to speak discreetly into a walkie-talkie hidden under his papers. As Twilight negotiated with the unfriendly boat assistant, Luna sat on a bench and pony-watched. She was feeling bad for having neglected to properly terminate these unwelcome pests now taking over the city. But how could she have known that Applejack would inadvertently dig them up and proceed to...practically spoon-feed them to the pegasus? She was determined to do her part to clean up this mess, and was contemplating whether to get her sister Celestia involved as well. After all, Celestia knew just as much about these devious things as she did. She sighed as Twilight returned with a set of keys, and they walked down the little stilted dock off the canal to find their boat. It was a tiny thing, just big enough for the four of them, but it set off smoothly enough as Luna manned the controls. Twilight nudged Luna to keep her hooves away from the horn; they were behind a large barge, and on its stern was a sticker: Go ahead and honk, I’m reloading. As they floated downstream, Spike looked down and winced at the sight of Rainbow Dash’s blood. “Ew, this is just the tiniest bit gross.”

Scootaloo laughed, “Come on Spike, we all have blood – and unlike those waste canals, at least this is clean! I think it’s cool, watch this: now I can say Rainbow and I really are family, it’s in our blood!” She proceeded to graze deliberately her hoof on a sharp edge on the boat, and moved her wound towards the bloody river’s still waters.

“ARE YOU NUTS?!” Twilight screamed, dragging back the filly onto the boat and staring her down. “Who knows what horrible substances might be floating around in this blood, even if it has just been filtered?! These Eevies might have perfected the art of contamination!” Scootaloo blushed as Spike shook his head teasingly.

“I should like to think the workers up in the kidneys are able to control such matters” Luna observed, but she and Twilight both knew that it was a possibility, given the circumstances and the headline they’d heard from the newspaper colt. Eventually the busy hub of the kidney changed into the blue tunnel of the Renal vein, and lamps lit the way for them down this dark tunnel. A sign indicated that their destination was the ‘Drainage Centre’, and some young microponies made some noise as they slowly overtook the gang, each of them sitting in inflatable rings as if this were a lazy river. They passed a few turnings but after a half-hour or so of slowly moving down the canal, they reached an opening shortly before the terminus. It was in this briefly-widened section that they caught sight of a dark object docked to one side on a crumbling pier. There were a few small buildings along this pier, but they all looked long-abandoned; half of the motel’s sign was on the floor. “There,” Luna pointed to the object, and as they steered towards it its appearance became clear: it was a barge. The black barge’s name had been attempted to be covered up with black paint, but it still read through as Il Pegaso Volante. They slowly pulled up next to it and boarded. Cautiously, Twilight knocked on the door; it opened slowly.

“Yes?” a withered stallion emerged slowly, adjusting his glasses.

“Action Tremor…? It’s me, Princess Twilight. We’ve come to-“

Before she could finish, Action Tremor grabbed them and speedily hauled them all inside, slamming the door shut behind him. “Were you followed?” he asked, seating them at his cramped table as he busied himself at his kitchenette. The barge was cluttered and damp, filled with papers and files up to the roof. Barely any sound from outside came through.

“Erm, no I don’t believe so.”

“Good…good…oh, Princess it’s so good to see you. And you, Princess Luna! And Spike, my dear dragon! And is this…are you the filly I think you are?” He offered a hoof to Scootaloo, who shook it and beamed with a nod. “Incredible - first you come here, Twilight, and then all of a sudden family can’t seem to get enough of it!” He smiled at Scootaloo, who blushed.

Twilight didn’t look too amused. “Mr. Tremor, something horrible has happened to this place! What is going on around here, why are you living in this remote place?!”

“Ah come now, Twilight, nopony wants to see me on the streets anymore – me, a Mayor who’s been deposed TWICE from office! Never in Rainbow Dash history has that ever happened! But first your friend Discord and now…now this.” He sighed, and brought a tea-set to the table.

“Now what, Action Tremor? Please tell us, we’ve come all this way to help.”

Action Tremor got up and paced around the room, past his TV which was turned on but muted. It was tuned to RainbowVision – the 24-hour channel which broadcast the view from Rainbow’s eyes – and it seemed Rainbow was with Fluttershy at some sort of petting zoo fair… Well, at least Fluttershy’s doing what I asked her to do, Twilight thought. “An Eevie guard – I’m assuming you know what they are by now – told me about his species when I was myself interrgoated by them a short while ago. Everything I know, I know based on what he told me.” He paused, looking deflated and unwilling. The gang sat in silence; Scootaloo drinking her tea was the only noise. Action Tremor gazed at an old battered poster up on his wall; it appeared to be a political poster promising ‘a safe city in Tremor's safe hooves!’ with his own smiling face alongside it. With a heavy sigh he turned back and stood before the four outsiders. “Okay, I’ll tell you what I know. But it’s no small issue.”

CHAPTER 6

“The city’s current Mayor came from an anti-establishment campaign in Southside known as the Rebel Bowel Movement. They’re a rebellious bunch of fools, those Eevies - they joined the movement and convinced its members to assist them in their schemes. You see, their initial plan, years ago, was to take over Griffinstone from within. The Eevies are very technologically advanced; they develop things I couldn’t have dreamed of seeing for another century! They eventually grew tired of their griffon neighbours and decided to turn them against each other once again, so they produced this shrinking nanotechnology, which they only completed a year or so ago, to infiltrate the mundane griffons. I suppose that accounts for the punky attitude. The Eevies’ plan was first manifested when our Rainbow Dash visited Griffinstone with Pinkie Pie – ah, I remember that…the hilarious scones, the rock-climbing…what a fun trip that was – sorry. Anyway, the Eevies saw an opportunity to make Rainbow and Pinkie Pie act as pony 'intermediaries' in their plans, and the two were supposed to be such by now, but that rock-climbing incident meant the Eevies' supplies - and back-up necessary to complete their mission - were swept away due to the winds in that abyss. The guard told me that these supplies had been traversing Rainbow's tail to find the main team he was part of, and the winds sent them all flying. So instead, he and the remaining Eevies lived in our Tail County until being gradually wiped out themselves…or so we thought.”

Twilight and Luna exchanged glances, struggling to comprehend what they were hearing. A police siren in the distance broke the brief silence.

“A few of those tail survivors managed to make it into the City, but with only two or three of each other for company, and being monitored by myself and the police, they caused no trouble. Rainbow Dash may have dreamt about them with you, Luna, but they were very much already alive inside her body, unbeknownst to her – and, as long as you're already in, you don't need a renewed travel permit. That’s what makes all this so darn difficult. Then, the picnic incident arose.” The gang looked confused, so he continued by offering an explanation: “A few years ago City Hall organised a picnic with Applejack and Rarity and their sisters. I believe you were there too, Scootaloo.” Scootaloo thought for a minute then nodded with a smile. “Anyway, this picnic proved to be a fatal error on our part: we didn’t realise the location was near where you, Luna, told 'us' the remaining Eevies had buried themselves. That little digging game of yours caused the Eevies to catch on Applejack’s fur as she dug. Once she brushed and dusted herself off, their capsules were sent flying – and as bad luck would have it, they ended up on the sandwich we were about to consume here.”

Scootaloo sighed as she remembered how, on that day, Applebloom had boasted about what good sandwiches she always made. Action Tremor continued: “anyway, in came the sandwich – and with it, these capsules. Of course, none of us had seen these things before; everything I’m telling you now I know from when we interroga-“

“Yeah yeah, we know this part,” Spike interrupted, “their capsules needed a substance to be activated and it happened recently. ‘Officer Exposition’ explained that much.”

Twilight frowned at her little dragon before turning to the stallion. “Sir, we were hoping you might be able to tell us about whatever that substance was. It might prove useful against them.”

Action Tremor looked upwards and then spoke, “the substance you refer to is called Librozene. Nasty thing. My scientists had spent an eternity trying to figure out how to open those capsules with various other substances. Those few Eevies we were monitoring – the ones who were already here – refused to tell us what the substance needed was, but they clearly recognised the capsules as their own. So, we became very sceptical and on-edge in case the substance appeared. Officer Exposition - whoever that is - is right that it only recently entered the city; it was when Rainbow Dash exposed herself to that horrendous ‘apology’ pie for Pinkie. Dear me, that was close. You see, every friendship dilemma you have out there is like an international conflict between our cities; Pinkie’s issue with the pies saw us come close to cutting all trade ties. Fortunately we reached an agreement!”

“Mr. Tremor, we’re going off-topic…”

“Of course. So, Librozene was all over that smelly circular monstrosity Rainbow held, and even though we didn’t have to go through with ingesting that pie, the damn Librozene was quick enough to enter her mouth and nasal passages. It didn’t take long before it reached the capsules in the stomach discreetly, and sure enough the capsules opened. The DAA and police forces then opened fire and overthrew them at my instruction, and we thought that was the end of it; a few escaped to the bowels but we thought nothing of it…how wrong. With the Eevies repopulating down there and joining the Rebel Bowel Movement, their leader paid me a visit and seized City Hall by force. Since then, they’ve taken control of Rainbow’s hormones, emotions and voice-box overriding – and all of us citizens have had to watch our gloriously awesome city…crumble! My loyal government employees have been imprisoned, and our army have no choice but to switch allegiance. Various other cities have pretty much been converted successfully - such as Gilda and Greta, I think – and Rainbow is…now at ‘phase 2’ or something…oh it’s just so horrible!” He broke down and wept.

As Twilight and Scootaloo embraced him and offered a shoulder to cry on, Luna’s attention turned to the television set; Spike joined her. Through RainbowVision they could see that Rainbow Dash was still at this petting zoo fair with Fluttershy, and Spike unmuted so they could hear the conversation:

“Come on Rainbow, don’t you want to come and cuddle this lovely little raccoon?”

“NO, Fluttershy, it looks dirty and gross…think of all the stuff he rolled around in.”

“B-but Rainbow, you said-“

“Yeah I totally changed my mind! I don’t know why you spend so much time with these animals.”

At this obnoxious comment, Fluttershy began to cry as the animals surrounded her for comfort, whilst Rainbow Dash’s bored eyes turned to the various stalls at the fair, including a Daring Do stand and a sweetcorn harvest.

Luna turned to face the others. “This is simply appalling, we cannot stand for this nor allow it to happen.”

Twilight looked up sadly, as Action Tremor composed himself. “Well what can we do, Princess Luna? City Hall have total control over her.”

“We have to infiltrate City Hall then, this way we can control Rainbow’s speech and make her apologise. Then we need to contact the DAA and remind them who they serve, where their loyalties really lie.”

“Then they can help us kick those bloody Eevies out!” Spike said.

“And make Rainbow Dash awesome again!” Scootaloo added.

With a determined look Action Tremor stood up. “I’m coming with you. Heck, you could do with a guide around some of these parts. I feel largely responsible for this whole mess, so I’d like to assist you in putting an end to it.” The gang smiled warmly and followed Action Tremor outside. He led them out onto the dock and around the side of the barge, where a dark tarpaulin cover lay. Removing that, the foursome watched in disbelief as he proudly started up his speedboat’s engine. “Much faster than that old junk” he said, gesturing to his barge. “We’ll reach the kidneys much faster this way.” They boarded the boat and soared upstream, the boat cutting through the waters at bullet speed, waves of churned blood oscillating down the tunnel. A few oncoming boaters gestured rudely at the speeding crew, but Action Tremor merely laughed: he was clearly enjoying this newfound lease of life. However, as they reached the right kidney, Spike nudged Twilight when he turned and saw a dark boat following them into the docks. The pursuing boat was clad in black but with a rainbow stripe running along it, and the City of Rainbow Dash seal emblazoned on its sides. Dismissing this as simply a patrol boat given their speeding, they hurriedly climbed into a cab and raced through the veins' highways to the neck, where the driver changed onto the nervous highway that ran alongside the subway for a while until they reached Brain Central.

Scootaloo set a diversion by drawing crude graffiti on the side of the brain, dragging out a large number of City Hall officials who were eager to see what the commotion was outside. The Eevies made up a large portion of the new employees here, but the gang frowned and managed to sneak inside to the elevators. Just as Scootaloo was about to be arrested by the police, she vanished into thin air. Poofing back in a cloud of purple smoke in the elevator, she looked up at the Princesses, who were panting. “Thanks! That spell is awesome…so far so good, right Action Tremor?” Action Tremor was looking at the panel of buttons and trying to remember where to go.

“There’s a secure room on the 17th floor which I think has access to the voice-box override. That may be a start” he said, pushing the 17 button. They whooshed up through the cerebrum as fast as a neuron, and the doors opened.

CHAPTER 7

The Mayor stood right in front of them, surrounded by Eevie guards and - to their horror - the newspaper colt from earlier. The Mayor patted the colt on the back, smirking evilly at the shocked fivesome. “One of my best spies,” he said, before adopting a serious and unimpressed look. “Mister Tremor, I hardly expected you even to remain in the city at this point. Don’t you think you’ve let them down enough times now?”

Action Tremor looked hurt, but Twilight stared the Mayor down. “What you’re doing is unnecessary and cruel – you don’t have to be the bad guys, here. If you just let me-“

“SPARE ME!” the Mayor interjected. “Spare me your friendship magic jargon rubbish. We have worked too hard and for too long on this mission, and I’ll be damned if I’m going to let you ruin things now. Guards! Take this worthless stallion and put him with the others.” Two Eevie guards grabbed Action Tremor – who tried to give a reassuring look to Twilight before he was dragged out of the room, hurling insults at the Mayor, who then let loose a very unsettling grin at them. “Now, our Rainbow’s tale isn’t quite as ‘nice’,” he began, “as the story you’ll create by breaking in twice.” Scootaloo scowled and Spike growled at him, but he went on. “And what’s this? Are these…unauthorised tourists we have here?!” The gang looked at each other, confused. “I don’t see any travel permits on you. Cecil, arrest them.”

The large pony to his left nodded to his fellow guards who went and hoofcuffed the four of them. “All visiting personnel must present valid travel permits,” he said, reciting it in such a way that it sounded automatic - he must’ve said it enough times – “failure to produce the appropriate documents upon request will result in immediate and indefinite incarceration.”

“But…” Luna began to protest, but the Mayor silenced her.

He bellowed at them, “learn the rules!” and laughed mockingly. “It looks to me like we have five illegal germs who’ve tried to enter this city through a small cut we received on the hoof earlier today.” He laughed as he planted an unpleasant-looking varnish on the gang’s flanks, and then the guards began to drag them to the elevator. “Wait,” he stopped them. As they turned to him expectantly, he lowered his face and looked nastily across the room, “chisel ‘em.” The guards nodded, but the gang had no way of knowing what was in store for them as the lift unexpectedly went upwards.

---

Twilight, Luna, Spike and Scootaloo had been shoved onto a helicopter on a helipad atop the brain. The squishy surface was unpleasant underhoof – especially with their front hooves tied - and they had almost been grateful for the helicopter seats. What made them suspicious was the running rainbow stripe and logo on the helicopter: Rainbow Dash’s gaping open mouth, with M.S.D. in its centre. All but Scootaloo knew all-too-well where this helicopter was heading; they’d even ridden in one before. They all sat in silence as the chopper made its way over the busy streets of Brain Central before taking a turning onto a nerve highway labelled ‘Oral View Boulevard’. The traffic below them eventually petered out, mainly because the entire highway ahead was blocked off from public access with bollards, toll-booths, security fences and anything else to make it look as unapproachable as possible. “Looks like things haven’t got any better for Oovla and co. yet” Spike said almost jokingly, but they all knew it spelt danger.

The chopper reached the mouth from the back of the throat, and the view that they had come to know so well appeared once more. Spike couldn’t help but reflect on his adventures here, for he had been here more than anyone else: that first time months ago, when Twilight had experimented with Zeromac one morning, and during her demonstration to the Mane Six he had been accidentally shrunk - ultimately ending up swallowed by Rainbow Dash unintentionally and needing to be rescued from digestion by Twilight’s magic; and his more recent visit with Twilight and Luna, when Action Tremor had allowed them freedom to explore this region of the city - an area long since off-limits due to unsafe and unsanitary conditions; it was this issue that Oovla had been trying to do away with. Discord, who had been with them that time, had naturally caused mischief to make this job harder. Now, Spike found himself back here in a much more serious situation, unsure what was to happen. As Rainbow’s vast jaws of teeth hung loosely in front of them, the immense tongue below them heaved ever-so-slightly. The chopper flew towards the red beacon flashing on the base of the uvula, which was where the control centre was for the Mouth Sanitation Department. The pilot pulled up next to a window on the side of the observation deck, where an Eevie worker approached and wrote on a clip-board. “What’s this for, then?” she asked.

“Got some germ prisoners here, Stephanie. We have a little surprise for them.”

“Oh?”

“What’s the schedule here?”

“We have no action reported for about 30 minutes, Malice. Expecting sweetcorn by then, hunger levels rising along with boredom apparently.”

“We’re gonna chisel ‘em” Malice said with a grin, and he lowered his shades as Stephanie signed something down and went to fetch somepony. As the gang sat waiting nervously, the mouth opened up. The outside light poured in and lit up the entire mouth, blinding the helicopter crew momentarily. “Dammit!” Malice shouted, as the others shielded their eyes. Rainbow’s enormous tongue lurched upwards as her jaws opened wide, and Malice fought for control of his chopper as it swayed and veered in the streams of air that came rushing in.

--Rainbow Dash let loose a wide yawn loudly, closing her eyes and sighing as Fluttershy frowned at her. “I’m sorry this fair isn’t to your liking, but you don’t have to be rude about it, Rainbow Dash” she said sternly, but Rainbow simply shrugged as they moved to another stall.--

“You want to warn me next time there’s an incoming yawn?!” Malice said furiously as Stephanie returned to her window. He was quickly shushed as a mustard-yellow mare emerged from behind Stephanie to face him at the window.

“Maverick Malice, I’ll have you know that City Hall's desired sleeping patterns have left yawns an unpredictable occurrence at the moment. I suggest you take it up with Respiratory.” The mare who spoke was Oovla, the head of the MSD. She had been pleasant enough to the gang when they had last visited. “And who have you got back there?”

Malice snarled. “Some germs from a cut we got downtown.”

The lie didn’t seem to convince Oovla, who peered into the cabin. Upon seeing the familiar faces of Princess Twilight and Spike, Luna and even Scootaloo, the faintest of pained expressions crossed her weary face. “Oh dear…Very well. Carry on, Stephanie” she said, and speedily turned herself away from the window, appearing to hold a hoof to her face in distress as she walked off.

Stephanie’s antennae twitched and then she spoke through the window: “Okay Malice, take them down. You can use…M7. Oh, and when you’re done I could use some help with the ulcer.” Malice seemed to know what ‘M7’ meant as he instinctively steered the helicopter down towards Rainbow’s lower-right molars. As they soared down through the cavernous mouth, the gang spotted the aforementioned ulcer: it was a ginormous thing. Rainbow must be in a lot of pain from that, or…can you get ulcers from being really bored? Twilight thought to herself as they peered out curiously. They soon reached the right side of the jaw. To microponies, the teeth were massive - like great white hills and mountains that rose up from the plaque-infested gum-lines of the pegasus’ mouth. Twilight recalled how Rarity on her visit here had bemoaned the ‘uncouth’ appearance of it all, and felt a sense of abandonment from the outside world now – what was Rarity doing now? How was Rainbow to know that her friends were currently inside her mouth? Malice took them one-by-one out of the chopper and onto the hard surface of the tooth. The enamel surface was white and vast, rising up and down like a frozen sea storm. Luna seemed to find it particularly painful to walk on, under her covered hooves. Pointing an unfriendly-looking weapon at them, Malice led each of them to a large slab placed on the tooth, and upon the slab was a pole. Twilight grimaced as she saw unpleasant-looking stains around the pole; Malice tied the four of them up to it tightly together.

“Now, Rainbow is apparently suffering from massive boredom because our friend Fluttershy is dragging her through some fairground nonsense,” Maverick Malice addressed them as they stared angrily at him from their stake, “and what with the City having an earlier start than anticipated this morning, she’s also a bit on the tired side.”

“And the point is?” Spike asked, unamused.

Malice glared at him. “The point, impertinent dragon, is that all of this causes Rainbow to inadvertently grind her teeth! At this point I don’t think I need to explain where this is headed…something to really sink your teeth into, no doubt you'll find out!” and with that, he laughed and boarded his helicopter. The foursome panicked and struggled in their ropes, with Twilight’s magic unable to break through the tense fabrics. As the chopper flew off, they heard and felt the white chompers above them come unnervingly close to clenching the jaw shut ( - indeed, Rainbow was now sitting bored with Fluttershy and Pinkie Pie in an audience watching an animal tricks show - ). The princesses watched sadly as the chopper hovered by that window of the uvula once more, and they were sure they could make out Oovla doing something in the window overlooking their section.

“That double-crossing dirty little-“ Spike began to freak out and curse the MSD’s chief, but Twilight shushed him.

“Princess Luna, do you think we have enough left in our tanks to use the teleportation spell again?” Twilight asked her fellow princess nervously.

Although their wings had been tied down, their horns remained untouched. Luna sighed as Scootaloo and Spike cheered them on – but they all screamed when the upper molars above them crashed down onto them. Fearing the worst had happened, they opened their frightened eyes to discover that Rainbow Dash had clenched her teeth at such a position that they were caught in a groove of the curvature which spared them a chiselled finale! “Um, could you possibly use that spell sooner rather than later?” Scootaloo asked, with the tooth above grinding its way slowly towards her side of the pole, the enamel coating peeling with every grind.

Luna tensed herself as her horn lit up. “On the count of three, Twilight Sparkle… one…two…”

And on ‘three’ the teeth clenched together with a crash on the pole where four prisoners had stood, shattering it into pieces and sending fragments splashing into pools of saliva down below the gums and tongue. Oovla, seemingly satisfied with the job done, reached for her binoculars and surveyed the damage through the uvula’s observation deck windows. Upon seeing that there was no sign of the four captives anywhere – and knowing the magic those princesses possessed – she assumed their escape. She radioed City Hall and passed on a message to the Mayor that the job had indeed been done, and then afforded herself a sly smile.

Section 3

View Online

CHAPTER 8

The gang looked around at the funny and whimsical world of pink surrounding them. They felt as if they were in a forest, because they seemed to be caught halfway up giant trunks of pink, sprouting from the darkness below and stretching high up into the sky above. As a breeze came over them these trunks began to sway in it, tilting ever-so-slightly to one side, almost in unison. The gang, perched on a small ledge on one of these giant trunks, surveyed the area and dusted themselves off. “Nice work, your majesties” Spike nodded approvingly, “I think we got out of there just in time!”

Scootaloo looked around nervously, “But where exactly did we end up?”

Luna shook her head frantically to remove some dust particles caught in her flowing mane. “Our spell has yet to be perfected – so I do not know, little one. But I may make an educated guess.” The other three looked at Luna with wide eyes. “I fear these are not trees of some foreign land. I think that we are in somepony’s mane.”

A universal gasp followed, and Twilight brushed her hoof along the thick strand of pink hair towering over them. “Fluttershy…” she said aloud, as Luna turned to her. “Fluttershy’s been keeping Rainbow Dash company all day; I asked her to…we must have teleported into her mane...”

“Why does it have to be Fluttershy?” Scootaloo asked, “it could literally be anypony!”

Luna explained, “our teleportation spell only works within a certain radius. Given that Twilight Sparkle says Ms. Fluttershy has been with Rainbow Dash all day – and that we tried the spell to teleport to one of the nearest detectable 'safe' places – it seems a reasonable suggestion.”

The four of them looked up to the sky which dominated their upwards view. Looking down, the darkness of the full set of pink hairs’ roots was intimidating-enough. As if sensing their need for a heavy prompt to investigate, a strong wind – or a quick movement from Fluttershy – caused them to lose their balance and fall down through the forest of hairs. Spike and Scootaloo screamed as they grabbed hold of a strand and slid down it as if it were a pole; the princesses followed them down through the mess of hair. As they descended, the strands began to seem wavier here and there, making them curious. Eventually they reached the scalp, and the princesses used the torch spells to light up their horns. It was then that they made a discovery which confirmed a slight oversight: this pony’s fur was pink too. Although a lighter shade than the mane, this was an unmistakably pink pony. Almost on cue, they heard Pinkie Pie’s voice shout and cheer about something they couldn’t see, but her jumping up and down nonetheless caused the mane to shake around and send the gang tumbling down the side of her head, eventually reaching a giant obelisk of a structure, towering upwards. They quickly identified this as her ear, and it was then that Twilight had an idea.

“Do you remember what Action Tremor was talking about Rainbow Dash and Pinkie Pie’s visit to Griffinstone?” They nodded slowly as she continued: “What if the wretched Eevies managed to make it into Pinkie Pie’s body too?!"

The others gasped. “So…so what are you suggesting, Twilight?” Scootaloo asked with a tremble.

“I think we should make sure that they didn’t,” Twilight said assertively. “Come on!” And without even awaiting a response she brought Spike onto her lap, put Scootaloo on Luna’s, and led the way around the side of the massive pink ear until they reached its canal entrance. The sound of a breeze flowing through the tunnel was like a mad wind. Turning to face the outside world, they were filled with emotions of desertion and withdrawal as they saw Rainbow Dash, her magnificent rainbow mane flowing down the side in their view; she looked completely disinterested at whatever she was looking at; Pinkie seemed very much to be enjoying it based on what they could hear from where they hovered. They suspect nothing, Twilight sighed, thinking how crucial it was to help whatever problems these two young mares faced. Perhaps if Pinkie hasn’t been behaving so negatively, she’ll be safe?

---

The alicorns flew slowly into the dark ear canal, but again – as with Rainbow’s - the curiously quaint sight of a multi-lane highway, lit up with streetlamps and vehicle headlights, came into view. So too did the obligatory billboard, wedged into a large clump of earwax, stating Welcome to the City of Pinkie Pie! Amused by the similarity, Spike and Scootaloo smiled, but as soon as they ventured further towards the centre of Pinkie’s head, the differences in the city became more obvious.

The City of Pinkie Pie was a crazy place, like something out of a Dr Seuss story. Very little of the architecture appeared to make sense. It was all laid out just like Rainbow’s insides - but the way things were built, the way microponies walked and went about their days, was whimsical and unpredictable. The general vibe was as if there was a 24-7 party going on, and it was hardly surprising. Compared to what they’d seen earlier, there were no derelict buildings here, no dirty side-streets or cracked pavements; and no sign of any Eevies anywhere was encouraging. The gang reached the resplendent glossy-pink City Hall and asked to see the Mayor, and were met in the same manner they had received when they’d first entered Rainbow Dash's micro-metropolis months ago: numerous cellular ponies came up to them, wanting pictures and autographs, eager to speak to the friends Pinkie had known for so long now. However, they were eventually met here by a rather stern-looking stallion who wore a simple pink tie and glasses. He shooed away the pestering fans and addressed them: “Welcome to our super-dooper splendidly awesome city” he droned, lacking any conviction in the recitation. “I’m afraid the Mayor is extremely busy at the moment; we’re experiencing high levels of excitement…as usual…” he muttered. "I suspect you're all quite shocked to discover our humble abode within your friend."

"Nope" Spike said with crossed arms, smiling to himself.

The stallion looked deflated, and turned to the alicorns. “I am Buzz Gil, the Mayor’s deputy minister. What can I do for you, Princesses?”

The two alicorns looked at each other before Twilight spoke up. “We’re wondering if we could ask if there’s been a sighting in this city of a particular creature.”

Buzz Gil raised an eyebrow hesitantly, so Scootaloo took out her camera and showed him a photograph of an Eevie they’d seen on the street. “Oh I say…” he lowered his glasses and seemed horrified. “As it happens, I seem to recall our borders being threatened by such a creature a while back, when we visited Griffinstone with that pie-hating liar Rainbow Dash. We repelled them easily enough though, never saw them again. What are they?”

“They’re called Eevies and they're a microscopic nuisance, and Rainbow Dash has actually been infected and taken over by the troublesome things!” Buzz Gil stroked his chin and gave a 'hmm' of disinterest, but Twilight pressed: "You’re sure you haven’t seen any of those things in the city recently?”

“Well I certainly haven’t, but I shall notify our defences in the event that I do, and shall have warnings put up around the city!”

The foursome sighed in relief, and Spike noticed a bust of Pinkie Pie in-front of the giant brain which rose up ominously beyond it. “Look,” he laughed, “it’s Pinkie and the Brain!”

Laughing, Scootaloo took a selfie with Spike, and the group thanked the deputy minister for his time. Twilight spoke up: “Perfect, that’s a relief. Now we have to go back to save Action Tremor, save all of the citizens, and save Rainbow Dash!” The others nodded slowly and they set off once more. Heading back for the ear highways, they made their way through Cochlea Junction to the outer parts of the waxy canal. Their fortunes changed, however, when their path was blocked by a traffic jam. “Oh for Starswirl’s sake, what is the hold-up?!” Twilight exclaimed, as the answer manifested itself: a large clot of wax, wedged in an alcove of the canal, was slowly being broken up by a team of workers clad in high-vis jackets in this dark section of tunnel. The fact that the streetlights appeared to be broken around here wasn't helping. The gang watched as the team worked agonisingly slowly but carefully through torchlight, until the whole piece came crashing down and narrowly missed one of the thoroughfares of traffic. As numerous citizens emerged from their vehicles to complain about the apparently sloppy job, the whole tunnel seemed to shift downwards, and the two hovering alicorns were caught off-guard as the world around them tilted down. The brightness of the way out was suddenly blocked by what they presumed was a hoof, and the princesses looked at each other with a look of resignation. “Let’s go” Twilight muttered to Luna, navigating their orb as the traffic around them grew more impatient whilst the whole ear canal began shaking vigorously. The orb shot through the crowd and went flying into the open air outside, breaking out of the ear after the hoof had moved away. After the dark tunnel, the bright light dazzled the foursome so much that they lost their eyesight temporarily, but these moments proved costly as the alicorns were unable to see, blacking out and sending their orb crashing downwards. When they awoke, they found themselves in a sea of pink water. Are we still inside Pinkie?! Twilight wondered, as the calm waters around them bubbled quietly.

CHAPTER 9

Pinkie Pie tilted her head slightly as she moved her hoof up to her ear, wearing a confused expression. “Owee!” she said, causing Rainbow Dash, Applejack and Fluttershy to turn their heads to her. The four of them – Rarity had muttered something about being too preoccupied - had been enjoying drinks in the sun on this bright afternoon, but Pinkie’s distraction had caught her companions’ attention whilst they were discussing the rumour that Twilight and Spike were working on their shrinking formulae again.

“Somethin’ the matter there, sugarcube?” Applejack asked sincerely.

Pinkie scratched her ear, “yeah Applejack, I just got an itch in my ear – feels like something’s moving in there!”

The girls gasped, but Rainbow Dash chuckled, “ha ha – hey Pinkie Pie, I guess it’s your turn to have some tiny pony mess around with you!” And with a cheeky smile she took a swig of her pink lemonade.

Whilst the others turned away from Rainbow unamused, Fluttershy had kept her gaze – and she noticed the tiniest of purple dots disappear into the unsuspecting pegasus’ maw with a gallon of lemonade. Fluttershy remembered Twilight telling her that Spike may join her at a later point in her mission; now anxious, she quietly checked her tracker and saw the little red dot on the screen entering Rainbow’s body outline. “Actually, Rainbow Dash…” she spoke up, unable to hold it in, “I think you just swallowed Spike.”

Everypony’s eyes widened as Rainbow Dash coughed and looked shocked, “oh come on, not again!”

---

The tiny foursome had looked up at the sky-blue pony’s giant face as she had opened her maw completely unaware, and with the princesses’ purple orb protecting them they had ridden a water-slide like no other. Here we go again, Twilight thought as they passed under Rainbow’s upper jaw of bared teeth; with the seas of lemonade all around them, they had roared through the oral cavity with such speed that they barely had time to spot the uvula sway above them before they were accompanied by a large gulp down the oesophagus. Scootaloo noticed up ahead the billboard in the throat that had once proudly welcomed visitors to the city; it was now covered in enough graffiti to render it meaningless. Amused, she was able to take a few pictures of it as it flew past, but the orb was not strong enough to withstand the heavy flow of liquid pouring down the throat.

As the stomach came into view Spike yelled – wishing he’d brought his goggles – and the gang braced themselves for one hell of a big splash. Cellular ponies were standing on the boardwalk watching as this latest arrival into the stomach sent a large wave heading towards the beach. The cordoned safe-section of the beach was unaffected, however, and no klaxon sounded. What did sound was a megaphone from one side of the stomach walls, blaring:

“Now arriving: Soft drink beverage third intake, several life-forms detected. Reflux and Breakdown, prepare for potential gaseous emissions. Docking crew standby to initiate unloading procedure.”

The orb burst and they found themselves standing on a half-digested sweetcorn kernel amidst the bubbling lemonade as it mixed with the acidic waters. The gang cleaned and shook themselves as bubbly soda dripped down their wet manes, whilst ferry and patrol boats made their way over. Luna gasped when she noticed a fair number of Eevies on-board these boats, and Spike huddled them together quickly. “Okay, I’ve got an idea. Princess Luna, Twilight, do you think you could work some more magic?” As the two nodded, Spike whispered his plan.

The boats docked and a pair of border-control guards climbed onto the giant corn kernel. The guards loudly proclaimed that the Mayor had sent out a city-wide arrest warrant for four escapees, but Scootaloo stepped out and held up a hoof declaring her innocence. “Oh, oh what am I doing here?” she swooned, as the guards looked at each other. “Has Celestia forsaken me, that I should be so cruelly sent to this unknown place after being cursed at this size?!” She then proceeded to fake a faint and flop over behind a groove in the kernel, as the guards rushed towards her. Once they reached her, the two concealed alicorns sent a spell their way that froze them temporarily in a state of surprise. The princesses then began setting about putting on the guards’ uniforms for disguise. Luckily for them, these uniforms covered the tails, and had a hood on the jackets; in these tight suits they were able to conceal their true identity, as Luna’s mane and tail didn’t have space to move! They arose from the groove and addressed the glaring lights of the waiting boats.

“We have identified this subject, and it is one the Mayor has been demanding to see. We are to present her to him immediately. Her accomplice here will join us.” Luna spoke in her booming voice, and a few Eevies leapt up from the boat and flew right up to their faces, staring them straight in the eye.

Whilst no words were said, they examined each other for a few moments before one of the Eevies shouted “Well get on with it then!” As its companion laughed, the alicorns slunk off, flapping their wings and pretending to struggle with Scootaloo and Spike as they soared up through the vast stomach and headed towards a motorway junction leading into a hole in the wall.

They continued through the hole into a tunnel and came to a stop in an innocuous lay-by once they were out of any suspecting citizen’s view. Traffic roared past them as they went up to an information board nearby, and Scootaloo picked up a City map brochure lying on the floor. Twilight and Luna removed their hoods as the former examined the map: “Right, good thinking back there, Spike. Okay we're here, on Pancreas Drive, at the moment. Now what we need to do is –“

“What we need to do is locate Rainbow Dash’s heart; I’ve a sneaking suspicion that the Mayor will have tampered with it. The Element of Loyalty is inside it, and maybe he’s done something to it to control the citizens” Scootaloo interrupted, assertively pointing on the map.

The others looked suspiciously at her, but she added: “Discord told me about it once. He said it was where he convinced everypony to support him as mayor.” She blushed innocently.

“Very well, little filly. Onward, to the heart!” Luna exclaimed as they set off down a side tunnel and joining the relatively-quiet Circulatory line transit authority.

---

The microscopic group were pumped to the heart in no time at all, disembarking with several other microponies and heading towards the giant beating organ which aesthetically subjugated this borough, known as Chesterton. Citizens all around them seemed in no mood to give them a hard time; even most of the Eevies seemed disinterested in two immigration guards and two visitors. The quartet were able to navigate their way through this busy hub with citizens parting in front of them. This was normally a popular area – with nightclubs, bars and restaurants aplenty – and the gang were surprised to see so few younger citizens about. “LOOK!” Spike pointed at something and ran towards it.

“What is it, Spike?” Twilight caught up with him and realized he was pointing at a poster on the wall: Discord’s smug face, in an Obama 'Hope'-style stencil, captioned with ‘Never too awesome’. It was covered in graffiti branding him a ‘failure’ but there was no mistaking the familiarity of it. This indeed was where he had once come to sway the public months ago. Twilight mused sadly over how things had changed around here.

The foursome reached the base of the heart and walked round the vast perimeter. It was surprisingly quiet here and ergo they were able to slide unnoticed into a side entrance, marked -Service Elevator: No unauthorized access- of the massive thumping organ, and presently boarded a small elevator. Observing the buttons, Scootaloo didn’t hesitate to push one labelled Element Sustainability Dpt. They stood and waited as they shot upwards, occasionally feeling a jolt as Rainbow’s heart pumped away. “I can’t believe where we are!” Scootaloo cried as she took a selfie. “I always knew my sister loved me, and now I really AM in her heart!”

Spike face-palmed, “Come on Scootaloo, don’t you think you’re overdoing it a bit?”

Twilight interrupted. “She built a catapult to visit Rainbow’s parents in Cloudsdale…”

“We’re here,” Luna said abruptly. Sure enough, the doors pinged and they were greeted by a walkway lit by illuminated City of Rainbow Dash seals and logos in a wonderful electric-blue pigment. The muffled sound of rushing blood was audible from both sides; and as they walked down the dimly-lit corridor they turned a corner and were struck by the sheer brightness emanating from a doorway to one side. Entering the doorway they were nearly blinded by the shining red glow coming from whatever room or chamber this was. The light was coming from the element: a giant physical essence in the shape of the red lightning-bolt Rainbow’s Element-of-Harmony necklace bore. It rotated slowly on a giant pedestal – in a similar way as the Crystal Heart – and must’ve been soaring up 10 storeys high. It was pretty much translucent in appearance, and a continuous hum was coming from some machinery on an upper platform-gangway which circled and skirted the walls of this tubular chamber. As Spike headed for a staircase, Luna pulled him back and pointed silently to some Eevie guards scouting the perimeter above. The princesses used their freezing spell once more, rendering the guards motionless and then carrying them out of the nearest door, which Spike then went to lock. Now feeling sufficiently secure, they headed up the staircases and reached what appeared to be a major control panel.

Lights flickered everywhere and screens depicting status bars of all sorts flashed in front of them; it was as overwhelming as any cockpit! Spike noticed a log book which showed employee sign-ins; a notable recurring absence for weeks was the RD Heart Security Operator, flagged in red marker as 'getting too lazy'. He was showing this to Twilight when Scootaloo suddenly gulped loudly and pointed to one side, where a monitor labelled 'Commands History' had already been activated. Scootaloo sat down and was able to find a list of events displayed on it. “There!” Twilight said from behind her, pointing at an entry saying ‘HSO override access granted: Element maintenance in progress’. Continuing scrolling, the entries revealed that the Element had most definitely been tampered with. Various entries suggested that the Eevies had used some sort of technological magic to override the Element and alter its functions so that it manipulated its powers of loyalty to effectively brainwash the poor citizens. That must be why Oovla didn’t help us earlier…Twilight pondered. “You see? This is why we argued and split up earlier! The effects much bust be more rapid than we thought...Ugh! Why can’t these things ever be easy to reset?!” She cried out loud, startling Luna beside her.

“Um, Twilight?” Scootaloo smirked as she pressed some buttons until the monitor read: ‘restore settings? Yes ➡ Set date?’

She prepared to reset back to that first override as Twilight blushed, “oh…just like in the movies…”

CHAPTER 10

The City of Rainbow Dash experienced a sudden inundated sense of awe, and all around the streets microponies simply stopped what they were doing and shook their tiny heads. Secretary Marjorie massaged her temples along with other City Hall officials who sat in almost-catatonic states of shock and disillusion; up in the uvula, Oovla rubbed her head as she and her colleagues looked at each other in a daze. The Eevies were equally confused by the sudden standstill, but became aggressive when some of the citizens glared at them and became confrontational, just as Rainbow herself might be in the face of danger. As brawls broke out on the streets as the citizens fought back, the gang – still inside the heart – watched as the facility was filled with various Eevie guards, running around frantically to the commands of a Tannoy barking orders. Red beacons and alarms made their presences known, and the gang slipped out quietly by following signs to an exit to the Chesterton hub.

They had left the Element of Loyalty’s chamber after they felt they had successfully set things back the way they should be, and the two princesses had cast a protective spell over the HSO's monitor, preventing any tampering from occurring again. The control panel screens had briefly depicted scenes of happy memories of the Mane 6, assuring the gang that the loyalties had been mended. Then, Scootaloo had used locksmith skills - that she'd developed in a CMC venture years ago -
to set pony-only padlocks on the chamber doors, and the quartet allowed themselves a smile as they walked out into the district to find microponies furiously attacking the Eevies and kicking the living daylights out of them in typical Rainbow Dash style. “Now we must find the city officials who’ve been imprisoned” Luna decreed, and they studied their city map once more. “Hmm, where could they be…Hoofham…Lukington…South Side - there!” she pointed, finding a section of Brain Central marked ‘Correctional Institute and Detention Facilities’. And stripping of their patrol uniforms the group found some abandoned cars in the middle of the road – such was the chaos – and with Luna taking the wheel they sped off up a nerve towards the brain.

---

“I’m sorry…I really don’t know what to say, Fluttershy.”

“Look Rainbow Dash, I was only looking out for you because you’re my closest friend. We have to stick together.”

Fluttershy and Rainbow Dash had left the girls to go up to Rainbow’s Cloudominium. Rainbow had been panicking about Spike entering her body earlier – again - but Fluttershy had managed to convince her that she had seen Spike a few moments ago in the castle. Rainbow had believed this lie, and had suddenly become very apologetic, to Fluttershy’s delight.

“I guess I was triggered a little bit, you know? I’ve totally been feeling bad for…like, swallowing Spike a couple months ago, when Twilight was being an egghead with that shrinky spell thing” Rainbow said, looking sadly at Fluttershy with a sigh. “It made me feel kinda down and dumb, and then when it happened again…I think it must’ve made me act out. I’m sorry.”

Fluttershy looked away shyly. “It’s okay, Rainbow Dash. Your friendship is important to me.”

Rainbow smiled. “Of course it is. I’m like the number one loyal pony! And as your loyal friend, we can do whatever you want now – and I promise I totally won’t complain.”

Fluttershy turned slowly and hugged her childhood friend. “Maybe we could go feed the animals back at my cottage?” Rainbow rolled her eyes with a smile and the two headed off.

---

The gang were back in Rainbow Dash’s brain faster than they could have anticipated, coasting through the traffic in a manner that left serious question marks over the supposed 'regal and graceful' nature of Luna’s driving. They had, however, stopped on the Optic Nerve Boulevard and managed to rally together some rebellious citizens, who had followed them determined to restore order to their proud city. Following signs for the prison, they reached a dark section of the borough that was void of any residential streets; rather, factories and plants that seemed to produce nervous electricity dominated the district's scene. Eventually they came across a large light-grey square building, lacking any aesthetics whatsoever. In big cyan writing printed on it were the words City of Rainbow Dash Correctional Institute – this was about the only decorative feature. The gang headed inside cautiously, and the princesses readied themselves with their freezing spell. When the first Eevie appeared, two citizens rushed up from behind the alicorns and knocked them out before tying them up speedily. A cheer rose up from the small accompanying mob, and they swiftly followed suit into the prison.

They found a large cell block and encountered about ten Eevies who put up a good fight. The citizens attacked, with punches thrown and even some horns' magic tested, and some were even able to push some of the Eevies into unoccupied cells. Meanwhile, the foursome inspected the cells. Some were filled with angry germs and bacteria, carefully detained behind heavy-looking doors and screens; one cell which seemed particularly heavily-secure was labelled as Influenza. Luna barked in her booming voice: “Are there any government officials unfairly detained in this block?” An immense roar came from the upper row of cells, with numerous pony arms reaching out of the bars. “Let’s go” Luna nodded to Twilight, and they set to work unlocking the cells with the keys recovered from a vanquished Eevie. The mob cheered and the government officials shook themselves as Twilight prepared to address them; she paused momentarily to hug Action Tremor who had run up to her in gratitude.

“Listen up – we’re taking back this city, and we need your help. You must return to the sectors and departments you worked for before, and help restore the order which made your Rainbow Dash the most awesome pony around! Don’t worry – Princess Luna and I, with the help of my trusty dragon and Rainbow’s biggest admirer here, will be dealing with the ‘Mayor’ immediately. We will need your help. We need distractions, decoys, anything to aid in our penetration of City Hall!” There was an immense cheer as the mob had now grown; nearby factory workers on their breaks had curiously entered the loud building. “Does anypony know where the DAA barracks are?” she asked.

A small stallion held his hoof up. “Princess Twilight, I know where they are! They’re in the wing muscles over in Wings Peak.”

Of course, Twilight recalled, we’ve even been there before. Action Tremor nudged her, “I’ll take you there. Wingsward ho!” And the reunited five took off again, whilst the mob hurried out into the streets to gather more citizens.

“How can we trust that stallion, what if he was a Movement sympathiser trying to cause trouble?” Twilight asked.

Action Tremor frowned, “that was no sympathiser. That was Chancellor Danid who answered; he’s been one of Oovla’s most loyal employees for years.” Reassured, Twilight sped up, and they eventually reached the barracks.

The DAA were undergoing drill commands, but were doing so blindly in an almost zombie-like state under the direction of several Eevies and Movement members adopting DAA officers’ uniforms. Luna and Twilight froze the Eevies that charged towards them, paving the way for Action Tremor to address the troops he once governed. The foursome watched as Action Tremor eyed them all up and down, before barking at them unexpectedly. That alone was enough to shake a few soldiers out of their hypnosis, but he pressed on: “I hardly need to remind you of where your loyalties lie. You all took an oath, you all swore under the great seal! THIS is what you're defending, THIS is what you fight for!” At this point he produced two large photographs: one of Rainbow Dash enjoying the company of her friends at the Gala, and the other of the Mane 6 statue inside City Hall captioned Loyalty Pays Off. “Our beloved city is in danger by evil forces, and I’ll be damned if I become any part of the history books which just sits there and lets this happen. We’ve had too many momentous victories in the past to let this become our future. I know you feel the same way, and I know that you know I’m right. This is your home, this is your freedom, and this is your duty! Get out there and make your City proud!” His speech had definitely shaken the hypnotic spell over the army – but whilst it didn’t stir up the huge ovation he’d clearly expected, the units all went to work preparing for the attacks. It all worked liked clockwork; within 10 minutes the troops were moving out for battle. Taking a small unit from a DAA regiment with them, the foursome stormed City Hall only to discover a riot had broken out. The quartet headed for the elevator and quickly set off up the cerebrum’s centre towards the Prefrontal Cortex offices, whilst an amateur-piloted tank fired aimlessly at the brain’s base.

---

Meanwhile, Applejack had got in touch with Rainbow Dash’s parents that afternoon, concerned for her friend’s well-being. Her parents had flown down immediately, and had arrived to find Rainbow in Fluttershy’s cottage, petting a squirrel with a blank expression across her face. She did, however, rub her forehead with an ‘ow!’ at one point, seemingly pained. “She sure must have a lotta things floatin’ around up there, y’all.” Applejack offered, tapping the side of her own head. The sight of her parents’ distressed faces caused Rainbow’s eyes to well up with tears – which she naturally fought back – but presently she accepted the incoming hug of her mother. Applejack smiled at the embraced and even Fluttershy’s animals awed at the moment. Assured that she had friends and family to help her through rough times, Rainbow Dash gave a smile broader than anypony had seen from her for a long time.

Back inside her brain, the doors opened to the Office and the Mayor was once again waiting for them: he and his guards threw themselves onto the alicorns and tied them up, covering their horns. Spike and Scootaloo managed to escape, however, sliding under the melee and heading for cover by the desk. Whilst the Mayor laughed at the struggling alicorns, Action Tremor appeared through the elevator doors all of a sudden, and with his own ropes caught the Mayor and tied his wings together. As this happened, Spike suddenly got an idea when he spotted something on the desk’s control panel. He jumped up onto the desk and taunted the Mayor, shaking his behind and laughing at him – the Mayor wasn’t having any of it and lunged at him, but at the last minute Spike dived out the way and the now-flightless Mayor’s leg caught the lever which opened a panel of glass in the office wall. The ‘outside’ air came in and Scootaloo tripped the Mayor up as he came crashing down, sending him hurtling out the window and plummeting down into the plaza below. Unable to flap his wings, he crashed into a pile of citizens who bore down on him instantly. The two guards in the office were distressed by this and immediately flew out the window in pursuit. The mayor’s office was silent as all five of the heroes panted for breath. Action Tremor untied the alicorns and observed the office he knew so well, from his chair right up to the broom closet. “Well, that’s the end of that, I hope!” he sighed, a comment which trivialised the events so much that the alicorns chuckled with him, out of both relief and happiness. Down below, a cry of support rose up to suggest that the battle was won. As the foursome peered over the edge of the opened pane, they saw an immense throng of citizens cheering, punching the air and presently shouting ‘Rain-bow Dash! Rain-bow Dash!’ in unison, seemingly aimed up at the office windows of the immense City Hall; chants of Action Tremor's name soon followed. Beaten Eevies were strewn about, unconscious, and the DAA fired a 21-gun salute as the city flag was raised outside. The gang even spotted Oovla out in the crowd, cheering them on happily. The scenes of celebration were moving, and Twilight Sparkle turned to Action Tremor.

“It looks as if this city is yours once again, Mr. Mayor.”

Action Tremor shook his head with a smile. “The city is indeed ours, Princess Twilight, but we’re going to need a mayor who can lead us out of the mess that has been created, to clean up this not-so-one-horse town. I am no longer the man for the job.” Scootaloo gasped as he held up a hoof for silence. “It's been one hell of a ride for me, but I don’t deserve it anymore. I enjoyed my tenure, but it’s time to let somepony else take the reins. I've had enough time now.” Twilight and Luna nodded approvingly, as he added: “The city will hold an election soon - but firstly, we'll dispose of the Eevies once and for all through the bowels, and that’ll be the last we hear of them. None are to remain in this city.”

Whilst the group looked down silently, Luna suddenly spoke up. “Actually, I may have an idea – a use for this Eevie species, if I may.”

Action Tremor looked down and saw that the crowd was dispersing and ponies were now preparing to begin rebuilding their shattered home together. The collective effort brought him great joy as he watched, but he turned to Luna seriously. “Be my guest. Take them out of here, we don’t ever want to see them again in the City of Rainbow Dash. Just make sure you know what you’re doing with them, Princess Luna; they’ve caused enough trouble.” Luna nodded and he turned to a microphone on his desk, holding down a button and preparing to speak. The others realised this was a public address system, and thus all corners of the city would be hearing whatever he was to say. “Citizens of Rainbow Dash – we have resumed control of our city. With the endearing loyalty and support of each and every one of you, I can assure you that every last Eevie and Movement offender will not be seen in our borders ever again; and City Hall will hereby introduce a stricter border-control enforcement! I’m Action Tremor, and stay cool, citizens!” He released the button somewhat dramatically and sat back in the chair, sighing heavily. “I can’t thank you enough for what you’ve done. My God, I can’t begin to think where Rainbow Dash would be without the help of the friend she has in you, Twilight Sparkle! You’ve helped save our city twice now, given me a new lease of life, and we even managed to get some valuable positive contact with the Parental units today! I would say you’re welcome to visit again any time, but I don’t think you’ll want to visit anymore given that there’s always a problem haha!”

Twilight allowed herself a hug with the former mayor and he presently called for a private helicopter convoy to escort them out once again. Luna proceeded to gather together some unconscious Eevies, finding at least ten, and sealing them in a storage container for the time being. This was loaded onto a freight helicopter which travelled behind them. Spike looked delighted as they sat in the VIP chopper and flew over the scenes of celebration throughout Brain Central, “now this is more like it!” he exclaimed as Scootaloo laughed next to him. Whereas last time their exit had been via Rainbow’s ear, the pilot headed for the nose this time, venturing into the Nasal District and turning down the busy left nostril due to a blockage in the congested right passage. Nose-hairs whooshed in the breeze of the chopper as they soared over the traffic, and soon they flew over the outskirts of the nostril – where an immigration garrison was stationed along with a billboard bidding a fond farewell – and they left the confines of the city, exposed to the harsh natural light here in Fluttershy’s garden. They turned back and looked up to see Rainbow Dash's nose dominating their skyline, with the fringe of her mane cascading down the horizon above them over her massive eyes. Once more, the gang felt a strange sensation seeing the pegasus: knowing full-well what had occurred within her body whilst she remained happily oblivious. The chopper flew down onto the ground near one of Rainbow's hooves, and the pilot hovered and signalled the freighter to unload its cargo for Luna. Once completed, the choppers turned and rose up towards Rainbow's head; the gang watched as Rainbow laughed as a dirty squirrel licked her face. As Twilight used her magic to create their protective orb, Luna used hers to fly the Eevies alongside them. “So Princess Luna, why do you need the Eevies?” Spike asked.

Luna smiled at him, “these are indeed a special species which my sister and I have studied for many years now. I wish to conduct further studies on them in a laboratory setting, where specimens can be monitored to ensure they do not become contaminated or developed, even. I’m thinking I will build a formicarium for them.”

“Just be careful, Princess Luna” Twilight urged her, and heading back to the castle they prepared to use the regrowth potion behind closed doors. Twilight poured it over the four of them as they anxiously grimaced in the suspenseful moment, but it worked: in a matter of seconds they felt themselves over as they looked around, back at normal size in their surroundings. Scootaloo was excitedly examining her photographs on the camera around her neck, whilst Spike kissed the ground. They had subjected the Eevies’ container to the spell as well, but quickly re-applied enough of the potion that they were reduced back to roughly ant-sized. With this held in her grasp, Luna said goodbye and shot off towards Canterlot. Twilight, meanwhile, told Spike and Scootaloo to join her and they hurried to Fluttershy’s to join their friends.

EPILOGUE

Rainbow Dash was in the process of apologizing to her friends at Flutterhy’s cottage when Twilight came bursting in with Spike and Scootaloo. “Huh?” the sky-blue pegasus looked confused as the three attempted to look casual, receiving equally-quizzical looks from Applejack and Pinkie Pie. Rarity and Fluttershy ran up to them and greeted them in a way that perhaps seemed overly-friendly to the others.

“Where’ve you been?” Pinkie Pie demanded. “Rainbow Dash was saying sorry for acting super-dooper weird.”

“Yeah” Rainbow laughed nervously. “I’m sorry I acted the way I did. Next group dinner is on me!” The gang all laughed together and Scootaloo ran up to hug her idol. “Woah easy there, squirt!”

But smiling Scootaloo hugged Rainbow’s chest so tightly she could feel the heartbeats. “Oh Rainbow Dash, I really feel like I’m closer to you than ever before!” And she turned and winked to Twilight and Spike, who blushed as a confused Rainbow simply shrugged and hugged Scootaloo back.

---

“…and the heart contains whatever you hold most dear to you, and it rotates on a giant pedestal for everyone to see! Oh, and the nose always has loads of congestion in it because the fans are making energy! And the stomach is like an airport ‘cos stuff is always coming and going in and out, and all our cells get to enjoy it like a beach and…”

Cheerilee rolled her eyes as her student Scootaloo continued this most bizarre project demonstration. The filly was using an outline of Rainbow Dash and explaining the body’s functions with such excitement and frenzy that she seemed to be describing a theme park! She had pegged a few photos up as well, but they were poor quality and hard to really see what was going on. One picture did look suspiciously like a pony’s stomach lining… Just because they're your idol doesn't mean they're constructed in some unearthly way, Cheerilee thought, considering how better she could've phrased the biology assignment. As she found herself yawning Cheerilee forced herself to stop Scootaloo mid-presentation. “V-very good, Scootaloo, let’s have our next presentation.” The half-asleep students clapped apprehensively as Sweetie Belle went up next, giving her friend a doubtful look as she passed her, muttering to show her those photos later.

Rarity, Applejack and Rainbow Dash were waiting outside the school hall for their fillies to emerge. Rarity groaned: “Ugh, what could possibly take so long about some science presentations?! Whatever they’re talking about must be quite impressive! I told my Sweetie Belle that I wasn’t going to help her with it this time.”

Applejack and Rainbow Dash nodded in agreement, but the latter spoke up: “I bet whatever Scootaloo was talking about, it kicked some serious butt!” When the bell eventually rang and their fillies came out, Rainbow asked “how’d you do, squirt?”

Scootaloo looked annoyed, “I got a D for content, but an A- for creativity…”

Rainbow smiled and stroked the filly’s mane. “Ah don’t worry, kid. I still think science is for eggheads.”

As the six of them walked home slowly, Spike ran up to them in a hurry, panting. “Rarity! Applejack! Rainbow Dash! Twilight needs you to…to come imm-immediately! Sunburst has discovered Starswirl’s scroll!” As the three big sisters exchanged glances, Spike rephrased: “important magic stuff, come on!” And they hurried off to help.

---

“Ah, I remember that; they came here to Canterlot to show my sister and I.” Celestia thought aloud as she finished reading the ridiculously-long letter sent to her by Twilight, beginning to write one back to the Princess of Friendship:

“My dear Twilight Sparkle,

Let me assure you that my sister Luna’s formicarium – which I can’t say I entirely approved of initially - is producing intriguing results; for the Eevies have begun repopulating but not adjusting well to their new size. It is my thought that their days are numbered. The magic of the Zeromac potion has once again been locked away until the time is right for us to study it again. Do not worry, though, such magic has been used in the past with lesser consequences, and I am sure that with careful research we can make this potion become something to help us benefit ponies all across Equestria.

Yours truly, Princess Celestia.”

A Small Issue 2 - An Internal Conflict

by Lukington17

Section 1

Section 2

Section 3