Nightfall was the first to find his voice, as he introduced himself to Fluttershy.
"Welcome, to the Golden Oak Library. I am Nightfall Shine, the Ambassador of Friendship. And these two are my helpful assistant Barb and my student Evening Star."
Barb gave Fluttershy a friendly wave and said, "Hey there."
While Evening Star just gave a small, awkward wave. Fluttershy gave them a small smile. Even though this wasn't her world, she could still see her friends Twilight, Spike, and Starlight in their faces, and that made her feel a little bit better.
"It's nice to meet you all, though, I can imagine how strange it is meeting somepony like me." She said.
"Yes, and we're sorry for bringing you and your fellow ponies into these unusual circumstances." Nightfall said. Evening guiltily looked down at the ground. "But I assure you Miss Fluttershy, that we'll do whatever we can to help you and resolve this mess."
"Oh, thank you very much." Fluttershy said. "And please, just call me Fluttershy."
"So, Fluttershy." Barb said, siding up to her. "What's it like there in your world? You know, aside from the obvious gender swapped doubles."
"Well, there isn't a lot of differences, though for one thing, back in my world, the Golden Oak Library is..." Fluttershy then covered her mouth with her hoof.
"Is what?" Asked Barb.
"I...I probably shouldn't say anything." She said. "Discord has told me about alternate timelines in alternate worlds, I wouldn't want to do anything that could mess up the timeline of this world."
"That is probably for the best." Nightfall agreed. "There's no telling what we could happen if the timeline were altered."
"Aw man!" Said Barb, slumping in disappointed. "But I wanted to know if the other version of me is really cool or not!"
Fluttershy bit back a giggle, as she told the young dragon, "Don't worry Barb, I think you and Spike would get along very well."
"Spike, huh?" Barb mused, starting to perk up. "Well, his name sounds pretty cool."
Nightfall cleared his throat, calling everypony's attention. "I think we might want to get back to the situation at hoof?"
"Oh, right!" Fluttershy said. "So, do you have any idea what's causing all of this to happen?"
"Yeah, we've got a pretty idea of what caused it." Evening answered nervously, swallowing an anxious gulp. "Namely it was me and Discordia messing with the crystal mirror."
"But mostly Discordia." Said Nightfall.
"Really?" Said Fluttershy, a look of intrigue appearing on her face. "Where is Discordia now?"
"If I had to guess, she's still out trying to close up the rifts we tore open." Said Evening Star. "Why do you ask?"
Fluttershy smiled. "I think I'd like to talk to her."
"You want to what?" Nightfall stared at her, not sure if she was serious.
"I want to talk to her." She repeated. "Perhaps she can help find a way to get me and everypony else home."
Barb face palmed herself. "Doh, why didn't we think of that?"
"Are you sure, Fluttershy?" Nightfall asked. "Discordia isn't exactly the easiest creature to talk to...or get along with...or even get to help willingly."
"I think I'll be fine." Fluttershy reassured. "I know how to handle creatures like Discordia, and I'm sure she'll be able to help us."
Nightfall still didn't seem fully convinced. But he sighed and said, "If you think it'll help, then you're free to try."
"But wait, how will we find Discordia? Further more, how will get her here?" Asked Barb.
"Simple." Fluttershy said. "If she's anything like Discord, all you have to do is call for her." Clearing her throat, Fluttershy called out into the empty air, "Discordia, could you help us please?!"
A moment passed and nothing happened. "See? I told you it wouldn't--"
But Nightfall was cut off when in a blinding flash, Discordia appeared before them, decked out in a hard hat and a dirt covered overalls.
"Someone called?" She asked.
Nightfall gaped at her. "H-how...?"
Discordia smirked, leaning down toward Nightfall. "What is this? Is dear Nightfall at a loss for words? Well, I can't blame you, I do have that effect on ponies." Her outfit disappeared from her body as she tossed her luscious raven locks over her shoulder.
Fluttershy stepped forward and spoke up, "Um, Discordia? I was wondering if I could speak with you?"
Discordia whirled around to see who was addressing her. When her eyes fell on Fluttershy she froze, taking in the sight of the Pegasus.
'Oh dear, she must be in shock.' Fluttershy thought. "My name is Fluttershy, and--"
Like Nightfall however, Fluttershy was also cut off, this time by Discordia's squeeing, as she swooped down and scooped Fluttershy off the ground, twirling her in the air.
"Aren't you just the most precious thing!" Discordia remarked. "Though you're not quite as adorable as my Flutterbye, you do come at a close second."
"Um, thank you?" Fluttershy replied, unsure if it was meant as a compliment.
Discordia smiled sweetly as she hugged Fluttershy and nuzzled her cheek. "Oh you're just so cute! Fluttershy was it? How would you like to join me at my house for tea sometime? I'd just love to have another girl I can talk to."
Before Fluttershy could answer, Nightfall interjected into the conversation, "If you're done fawning Discordia, we need your help."
Discordia carefully set Fluttershy back down onto the floor, turning back to Nightfall and replied nonchalantly, "Ah yes, I assume you're referring to how ponies are crossing into our dimension and vice versa?"
"Wait, you knew?" Asked Evening.
Discordia rolled her eyes. "Of course I knew, what kind of Mistress of Chaos would I be if I didn't?"
"If you knew then why didn't you try and stop it?" Nightfall questioned.
"Well, for one thing I was a little preoccupied with closing up all those holes in space time." She said, flicking the tuft of her tail in Nightfall's face. "I'm nearly done by the way, only a few more left to go."
Fluttershy, noticing Nightfall's growing annoyance, stepped between him and Discordia. "Then you know why we need your help." She said. "I was thinking, since you're powers are probably like Discord's, then perhaps you could help send everypony back to their own worlds."
Discordia seemed to soften a little as she explained, "As much as I'd like to help you, dearie, I'm afraid what you're asking for is just a teeny bit out of my league."
"I thought you said that dimension hopping was your specialty." Evening Star said pointedly.
"Oh it is, I admit I do make it look easy." She said. "However, what you're asking me to do is to locate every last pony from both dimensions that have been misplaced and then switch them back to where they belong. I may be amazing but even I have limits."
"But, do you think you can try?" Asked Barb.
"I could." Discordia said. "But if I did there's no guarantee that everything will go right. I could end up leaving somepony behind or snatch up the wrong one. And I imagine that our dear ambassador would rather that things go well."
Nightfall didn't respond, knowing that Discordia had a fair point. At this moment, they had no idea just how many ponies had crossed over, and to find and search switch back all those ponies seemed almost a herculean task.
Fluttershy glanced at Discordia's face, she could see in her eyes that she was disappointed as well. Disappointed that somepony called for her help and that there was little she could do without something going wrong.
She trotted to Discordia's side and touched her paw in a show of comfort. This at first surprised Discordia, until she glanced down to see Fluttershy.
Discordia softened at her, giving an almost serene smile. "You know, you certainly are like my Flutterbye." She said, a touch of sadness in her voice.
"You wish he hadn't crossed over too?" Fluttershy asked.
"More than that." Discordia admitted. "I wish that I could've prevented him from ending up in this mess. If I wanted, I could've just switched the two of you back where you belong with no problem, Then you'd both be safe and sound."
"But you didn't."
Discordia turned her head and replied, "No. Flutterbye would've said it wouldn't be fair to save only him and nopony else. I suppose he'd be right."
Fluttershy giggled. "You know, I think my friend Discord would've done the same thing for me." At the thought of the Draconequus, n idea came to her mind. "That's it!"
"What's it?" Asked Nightfall, only now pulling himself out of his thoughts.
"Discordia said that switching everypony back would be difficult for her, but what if she had some help?" Fluttershy said.
The gears in DIscordia's head were turning fast and loud for everypony to hear, as she quickly caught on. "Yes, it's not a bad idea. You're pretty smart, dearie."
"Uh, could you explain what you two are talking about?" Asked Barb.
"Yes, yes, of course." Said Discordia, straightening up as she faced the others. "Fluttershy, would you care to do the honors?"
"Oh! Um, sure." She replied, a little nervous at being put on the spot like that. "You see, if we managed to get some help from Discord, back in my world, then perhaps we'd have enough power and help to switch everypony back."
Nightfall nodded along with what she was saying. "Hmm, it could work, it's certainly worth a try." He said. "But how do you intend to get in contact with him?"
Fluttershy frowned, as she hadn't thought of that part. Luckily, Discordia stepped in and said, "I can help with that."
"Really, what do you plan to do?" Asked Evening Star.
"I'll just teleport over to their world." She answered simply. "As Mistress of Chaos, I am able to traverse worlds with little consequence...well , unintentional consequence. But, all I have to do is pop over to that world and arrange a plan with our counterparts."
"Wow." Said Nightfall, sounding fairly impressed. "In that case, let's give it a try."
Discordia then held up a talon and added, "Though, you may need to wait a little while, I still have to finish my work on those holes after all. Wouldn't want any leaks to interfere with our work now would we?"
"Thank you." Fluttershy said gratefully.
Discordia smiled. "I won't be but a tick." And like that, she was gone.
Once she was gone, Nightfall wondered aloud, "Were we right to trust her with this?"
"I have faith in her." Fluttershy said confidently. "And you really shouldn't be so hard on her."
Nightfall said nothing more, instead looking out over Ponyville, lost in his thoughts.
Back in the other Ponyville, Twilight was running through possible solutions with Discord, trying to figure out what they could do to restore things to how they should be. As they were doing this, Spike entered the throne room and said, "Uh, Twilight, Discord? I hate to interrupt, but, there's somepony here who wants to talk to you."
Discord waved a dismissive paw. "Send them away." He said. "We're bit busy to be dealing with visitors."
"The thing is, they're from the other world." Spike added.
This caught their attention. "Who is it, Spike?" Twilight asked.
"See for yourself." He said, opening the door wider.
Stepping into the room was none other than Flutterbye himself. He cracked a smile and waved shyly at them. "Hello there."