During her entrance exam, Twilight's powers goes far out of control, leaving Celestia a shell of herself and Equestria in ruins. Now Nightmare Moon is free, but even she can't stop the Tyrant Filly. She flees through time and space, finding herself in an Equestria familiar to us but odd to her. Can the Mane Six help her stop a Twilight out of control?

Fanfiction.net link here!
Weekly featured fic in Authors Helping Authors group

TV Tropes Page, with sincere thanks to DrTempo.

Cover art from here.

Rainbow Dash never did her sonic rainboom, and while she's still friends with Fluttershy, Rarity works on a rockfarm, Applejack and Twilight live in Manehattan, and now Nightmare Moon has returned to Ponyville with no egghead there to recite the prophecy. Who will stop her? Will everypony have to learn to live with the eternal night?

Her beauty, sullied; her wisdom, corrupt; my love for her, violated. But still I answer...

Summoned to the palace in the dead of night, Twilight takes up a burden that even her generous, loving soul may not be able to handle...

Humanized Twilight/Tyrant!Celestia.

In the magical land of Equestria, the night has lasted for a thousand years. But now, with the anniversary of Queen Luna's victory over her rebellious sister approaching, the Queen's most faithful student learns about a disturbing old prophecy. Can she, along with a hastily gathered group of allies, save the Land of Eternal Night from the dawn that Hellion Queen is trying to bring?

----

This is an alternate-universe - or, to be absolutely precise, a reverse-universe fan-fic for MLP:FiM.
The cover image is a bit of fan art from DotRook over on dA: Dark Equestria: Rarity

Second (and final) chapter will be coming soon, once I polish it a bit.

I know, there are any number of tales out there which ask "What if Rainbow Dash never performed the Sonic Rainboom?" But my question is, "What if the day of the race happened two days earlier?" Find out how much a little change of date can make a difference!

Please note. I won't actually be addressing that exact day during the course of these first chapters. This follows where they ended up because of it, to be revealed later exactly how it all unfolded. Happy reading.

Celestia wakes up in human form and at an insane asylum where similarities between the world she is in now and the world of Equestria cause her to wonder if Equestria even exists or if she simply made it up to escape her human life. Does she try to hold on to her memories of her Canterlot life or does she let them go and accept them as nothing more than stories? Who is she going to trust? Who is she anyway?

This is only the beginning...

TV Tropes Page

Cover Art by blahblahaha123 (with some altering by me.)

Reading by Phantom Brony

Editors:

Csquared08, DarkPheonix, Gweat and Powaful Twixie, HenryAnthonyCourtler, Kaidan, KartalTheWriter,ZeroOmega

This is an idea that wouldn't leave my head, inspired by Fairy Slayer's "Mommy Nearest," Aldea Donder's "Alicorn," SoundofRainfall's "Play" and RainbowDoubleDash's "Lunaverse"

Alternate Universe: Instead of Twilight Sparkle, Princess Celestia made Rainbow Dash her personal student instead! Follow her through the events of the 1,000th Summer Sun Celebration. A reimagining of "Friendship is Magic"

Griffons have taken over Equestria, ousting both princesses by the use of power found in feasting upon Dragons.The power had turned them mad Equestria is plunged into chaos, there is no day and night. Corrupt ponies eventually join their ranks, while a small resistance tries to fight back. One pony named Starwood is plunged into the fray when he accidentally saves a pony from the grips of the griffons. One pony named Twilight Sparkle, and the baby dragon she's been trying to protect.

On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?

In her youth, Twilight Sparkle discovered a way to infuse technology and magic. 20 years after her breakthrough, she is now the CEO and founder of Sparkle Industries, and one of the wealthiest ponies in Equestria. Her relatively perfect life goes sour, however, when she is captured by a group of griffons who want to steal her technology.