Key-Lime Pie stood there, standing over Twilight.
The stitches over her joints now burst open, revealing the tendril mass that holds her together.
The eldritch unicorn seemed to double, maybe even triple in size, until she matched the size of Tirek, back when they had their grand battle together. Before Twilight could react, Key-Lime spoke up.
“Poor little Twilight Sparkle… All alone, nopony to turn to… Your friends… Turned to monstrosities. Your fellow Princesses, out of reach… You’re in MY domain now Princess… And in my domain, there are no rules…~”
Before Twilight could respond,the sky around the castle began to change. Slowly changing into a blood red colour, the shadows became an overwhelming pit of red, and everything around them had turned red…
It was almost like Twilight had walked into a giant photo development room. She couldn't see very well through the tampered light. She looked around, trying to see Key-Lime, but she seemed to have vanished into the red horizon.
Before Twilight could react, she was whacked from behind by a tendril. A dark, green tendril. The impact from behind her, left her dizzy, her ears ringing and her vision blurred.
Once the clouds in her vision cleared, she was greeted with Discord’s face inches away from hers. But something was off… His eyes were green. Lime green. With what looked like darker thread going through the middle of his eyes in a cross shape. Almost as if they looked like buttons.
“Discord?! What’s going on? What happened to you?!” Twilight asked frantically, putting her hooves on Discord’s cheeks, making him look at her.
But the draconequus simply remained quiet, before slowly standing up straight, pointing his clawed hand at her.
“Couldnt even save your little group of friends… And here i thought the Princess of Friendship was more capable than sending her guards to do her dirty work.”
Discord's tone was cold, heartless. His voice was echoed and distorted, and didnt sound like it was coming from him.
Twilight’s eyes began to fill with tears. She didn't want to believe it, but he was right.
She didn't come when she needed to, instead sending more guards and making bigger search parties. Even asking princesses Celestia and Luna and Cadance to send in reinforcements.
She did everything she could when it came to trying to find her friends, except go to THEM when they needed her most.
“T-that’s not true! I was helping them i–!”
“But you didnt go to them! You didnt leave your throne room until things got too far. Only when ALL of your friends were gone, did you decide to leave your castle, and find out for YOURSELF, what was going on.”
“So i didnt respond appropriately! I was doing everything I could without putting anypony else at risk!”
“But it clearly wasn't enough… was it… PRINCESS?”
Discord’s voice morphed and changed, until it matched Key-Lime Pie’s voice.
Then, Discord’s green button eyes began to glow, and the draconequus quickly evaporated into nothing, leaving Key-Lime Pie there instead, standing over the now crying alicorn.
“I suggest you look at all the mistakes you made Twilight… Sending your entire royal guard… Asking your fellow princesses for help… All the “efforts'' you put into the search for your friends… While you didnt even leave your little throne in Canterlot… But it seems like you’ve managed to piece the puzzle together a little too late…”
“You… You did all of this! But your own mother! She-!
Twilight’s sentence was cut off by the sound of loud ripping, Key-Lime’s body breaking into pieces, and her entire form growing to ungodly sizes. Her eyes going completely green and many tendrils came out of the new splits in her body. As well as her mouth.
With a loud roar, the tendrils all shot forward toward Twilight.
With a few pink flashes, Twilight managed to cast a few teleportation spells. Dodging the first onslaught, before the rest rapidly followed after her.
But the alicorn looked at Key-Lime. Her face didnt look angry or upset… She was scared. She had always been capable of such strong magic due to inheriting a lot of eldritch-like abilities from down her family tree.
“wait a second… Her magic… She can't control it!”
Twilight shouted out to herself. EVerything that was going on. Key-Lime Pie couldn't control.
All the strange happenings, the reality warping, even everything she is saying. Everything is the magic being too strong, leaving Key-Lime herself in the passenger seat of her own mind.
Twilight shot forward. Her horn lit up, ready to attack.
There was nothing she could do but fight back, if she didn't stop key-lime soon, then there would be no reversing this spell!!
Twilight flew toward Key-Lime Pie, she could hear her friends voices in the back of her mind, cheering her on for her victory, as she flew at the green eldritch horror that was Key-Lime Pie.
Dodging sharp tendrils as they burst from the ground, flying high above the ground, coming toward eye-level with Key-Lime’s giant form.
Her magic aura quickly transformed into a scythe, that she could easily wield in her teeth.
Which Twilight held tightly within her jaws, swinging the sharp blade, cleanly through the splits between Key-Lime’s limbs.
With many flashes of green and Pink magic, Twilight made quick work of slicing Key-Lime into many pieces. Before flying up high, the scythe soon vanishing from her maw, as she managed to align herself with the eldritch horror from above.
Her horn lit up once more, surrounding the alicorn in what looked like a shield, but it was pointed at one side. That point followed her front hooves.
Twilight flew down, diving toward the eldritch horror’s head, her hooves outstretched, aiming the point directly in front of her.
The spike of the shield soon pierced through the side of Key-Lime’s dismembered head, loud cracking and squelching sounds echoed into the blood red sky, as parts of key-lime’s giant form began to fly off, sparkling in the sunlight.
With one last battle cry, twilight drove the spike through key-lime’s head, embedding it into the ground, and key-lime’s head soon exploded in what seemed to be, sparkling green dust.
When the smoke cleared, all that was left was Key-Lime’s original form. Laying there amongst the smashed pieces of her giant form. She still had her stitches pattern on her limbs and torso, and her 3 horns remained.
But she was back to her normal self. And with a gasp, Key-Lime opened her eyes, looking around at the destruction and carnage that had gone on.
Seeing the blood red sky, the dusted up castle, and an angry Twilight Sparkle standing over her.
“I understand you couldnt control yourself. But that doesnt mean you wont be going without punishment.
Twilight explained coldly to the eldritch unicorn. Who remained silent and simply nodded.
Twilight then summoned 3 rings that slotted onto Key-Lime’s horns, cutting off her magic. The moment those rings cut off Key-Lime’s magic, the sky slowly faded back to the natural blue, and the surrounding area soon turned back to its true self again.
Ponies began to emerge from their homes, almost as if nothing had happened.
Twilight couldnt believe it. Everyone was back! It was just like a normal morning in Ponyville.
Realizing this, she looked over her shoulder, back at her castle. She then saw her friends emerge from the castled entrance, holding their heads, and looking a bit confused as to why they were in the old castle.
Twilight’s eyes filled with tears and she smiled wide. She then galloped toward her friends, throwing her front hooves and wings around them.
She caught her friends rather off guard, and tackle hugged them back into the castle’s entrance. But instead of anything unsettling or unnatural happening. The 6 friends just laughed, embracing their friend tightly.
The purple alicorn soon turned back to Key-Lime Pie after recomposing herself, and pulled her in close with her magic.
“I think its about time you come back to Canterlot with me…”
“Wait… Twilight, why is my daughter going to canterlot?” Pinkie questioned.
And Twilight looked over her shoulder with a serious look on her face.
“Ill explain everything soon, i promise, but for now, i need to take your daughter somewhere, where she can learn to control her magic.” Twilight then turned to Key-Lime, looking at her for a moment, before walking away, leading the green unicorn back toward the train station, where Twilight would personally escort her back to Canterlot.