There are two very important things to remember when you cross realities:

1) Every living thing that sets foot in Equestria gets magic if it doesn't have it already.
2) There are three pounds of bacteria living on and in the human body.

Everything goes exactly as expected when two alien cultures meet.

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.

Princess Twilight Sparkle invents a new way to travel between universes. On the maiden voyage with her best friends, something goes wrong.

Her discovery resurrects a secret from her past, one she has only shared with Princess Celestia. When Twilight learns of the price required to return things to normal, she is left with an impossible choice.

Written for The Writeoff Association's "Closing Time" contest. Preread by Axis of Rotation.

NOTE: I'm aware of Trotsworth's pony names. I chose not to use them.

Another subterranean temple. Another priceless magical artifact. Daring has fought him for the fate of the world before …

But now she's discovered who killed her father. And only one of them is going to walk away.

* * *

My entry in the "Famous Last Words" minific competition (14th place out of 51), expanded and polished for FIMFic publication.

"Highly Recommended" by PresentPerfect! Rated ★★★★ by Louder Yay!

Hope is the faith of the young. Losing everything she holds dear, Puppysmiles embarks on the adventure of her life to find her mother, her hopes of meeting her again driving her through the horrors of a world not of her making. Too bad the Wastelands doesn't care about hope.

Whenever Twilight no longer has a use for something, she often teleports it away without thinking of a destination. This results in the item being lost forever. But where do these objects actually go? Twilight resolves to find the answer to this question and discovers a strange room disconnected from the rest of Equestria where various objects have been banished to throughout the ages. Some of them were banished for a good reason, such as the tome on necromancy. And it turns out that the skeleton of a pony that she found isn't quite as dead as she thought, and now has access to a portal into the rest of Equestria. But is the necromancy practicing pony truly so evil?

Twilight becomes a cactus and shenanigans ensue.
Written for a friend who simply wanted a story named "My Little Cactus".

This story is a sequel to Dead/Light

Twilight's life definitely took a strange turn when she died. Of course, this won't stop her from living it to the fullest, whatever that entails.
Equestria will never be the same.

After the first, chapters will alternate between serious ( - ) and silly ( ~ ), because I didn't want the story to be limited to just one. Most will be standalone, and in no kind of chronological order; expect little correlation between chapters and occasional verb tense changes from one to the next.

This story should be considered in perpetual hiatus, as it will rarely be the focus of my attention. Do not expect regular updates.

Rated teen just to be sure. Cover art made by this butt.

A normal day was all it took.
A simple failed prototype, a missed experiment.
There was an explosion, and I woke up. I don't really know what happened between those two events, but I'm fairly certain I shouldn't have awoken in a small, dark box.

I'm scared.

Cover art by the amazing Avatar of Madness!

Ponies expect certain things from a mysterious shop that appears at the end of a lonely side street, and Old Gob does his very best to provide that experience. The candlelight flickers, a thick layer of dust coats items of dark and fantastic powers, and the door creaks ominously as ponies enter and leave with their purchases to discover the costs and rewards. Of course, sometimes the costs outweigh the rewards.

They certainly did for Twilight Sparkle and her friends. So when they manage to get to the shop right before it closes and disappears, they aren't going to leave until they get a refund.

(Fic contains a small amount of comedic TwiJack shipping.)

Second place winner for the February Writeoff Association prompt "Closing Time."