Twilight Sparkle broke time when she got her cutie mark. Now Twilight and Sparkle are sisters from another time. Twilight is hailed as the potentially greatest light magician of all time, and already has a reputation as a hero by the time she goes to Ponyville. This isn't her story, not primarily.

Sparkle is an orphan - her dark magic killed her parents. She lives with her brother in Canterlot's industrial sector because they can't afford anything better. She can't leave either. She's a natural dark mage; while Sparkle won't go mad like Sombra, her reputation is hardly any better. Worse, the law doesn't see her as a good pony.

The fact that the dead don't stay dead around her, or that Thorn - Spike's double - is an undead, soul-eating abomination, are other matters altogether.

(Also has some Slice-of-Life, but fimfiction tags won't let me put it with Adventure.)

Has an ask blog to go with it: Ask Sparkle and Thorn.
Also has a TvTropes page: Split Second Tropes.

Featured on EQD.

Cover art by Swirling Line.

Sweetie Belle gets stuck in a time loop.

Traducción Española: https://www.deviantart.com/spaniard-kiwi/art/Un-poco-circular-1-4-990271915

Proofread by many people such as: 0_0, refferee, Leonzilla, crooked, TheGreatEater, and other people I may have missed.

NOTICE: This is an unofficial and highly expanded story adaptation of the "PWaaMLPfim" Youtube Video Series: Phoenix Wright / My Little Pony FIM - Turnabout Storm! The videos came first, NOT this story!!!!

A quiet summer night in Ponyville takes a violent turn when two pegasus ponies enter the Everfree Forest and only one comes out alive, leaving the second accused of murder, on trial for her life. Ace Attorney Phoenix Wright finds himself dragged from his own world, magically summoned to Equestria by Twilight Sparkle to defend Rainbow Dash from charges of killing Ace Swift, a superstar pegasus athlete and champion racer.

Trapped in an unfamiliar world ruled by magical talking ponies, Phoenix must draw on all his wits and experience to solve the crime and uncover the conspiracy behind it... before Rainbow Dash is banished to the sun for a murder she didn't commit.

Parts 1-43 written by RavenRegios, and edited by Firesight. Parts 38, 42, and 44-epilogue written by Firesight with additional input and prereads from TheGoldCrow, AJ_Aficionado, and Leo Archon.

Ownership transferred to Firesight on 1/15/2018.

Strange things happen in Ponyville. Foals start to disappear; their parents and siblings, struck by grief, will resort to every mean to find the cause. Some of them blame timberwolves; some blame the zebra living in the forest. Some of them even blame their fellow ponies. None of them, however, suspects a little filly suffering from insomnia...

Click here for sequels reading order, TVTropes page and other info.
Part of the New Fimfiction Starter Kit

Beware of spoilers in the comments!
Inspired by Bootsy Slickmane's Insomnia.
Preread by Bootsy Slickmane
Translated to Russian by repitter:
🇺🇦Ponyfiction.org link🇺🇦
🇺🇦Gdocs link🇺🇦
Chinese translation by MLM
Russian reading by Demicorn Masterrace

Twilight after witnessing the summer sun celebration as a little filly, she decides to try and get into Celestia’s academy for gifted unicorns. Opening a book with a title that was missing a single letter on it's cover, Twilight picks up a rather interesting passion while studying for the entrance exam.

That's when things start to slowly 'grow' out of control.