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.

Kratos...the Ghost of Sparta...

Under the domination of Ares, the God of War, he committed horrid atrocities, including the slaughter of his own wife and daughter...

Visions of what he had done would haunt him all his days...until it brought his days - and his world - to an end...

At least, that's what the fates have decreed await him and Olympus.

But Fate changes sometimes. Some things can't be predicted, even by gods. And this time around, one of those things has found her way to Kratos at the very beginning of his Nightmares.
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Part of the PWNY-verse.

Edit: New Cover Art by Sanyo21!
Edit: New Fan Art by ArkKane!

All Dante ever wanted to do was lay back, relax, and - eventually - open and run his devil hunting business. He certainly never wanted to get involved in anything regarding the fate of multiple worlds, power hungry demon lords, insane cultists, and certainly not parenthood.

But then he got a party invitation from his brother...and on the way to the party, he found a tiny orange pony, who proves despite physics to be far more than a handful.
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Part of the PWNY-verse.

Edit: New cover art by sanyo21

Rarity receives an invitation to Equestria’s most exclusive and secretive social club. The only catch is, she can only attend if she brings her lawfully wedded spouse. Fortunately, there’s a certain purple dragon who’s willing to help her overcome this little difficulty. It’s a simple, foolproof plan: get married, attend the club, and then get an annulment. Nothing is ever that simple, however… not their weekend, not their friendship, and certainly not their marriage.

Edited by Level Dasher

Featured on Equestria Daily!

Audio reading by Brook the Book Horse

I was just hoping to get this last job done, always getting sent to this dimension or that, always doing the interests of others. Unfortunately, everyone's luck eventually runs out, and it looks like mine has ran out as well. Now somehow I got stuck in this place, in a foreign body, and things just keeps getting worse for me. What did I do to deserve this?
Note: This is not a HiE story.
Editors: Discord Kantus (Chapters I-XLII), Hyari (Chapters XXXIV and onward), Fourpony
Art: AlicornParty

This story is a sequel to Distorted Fate

After enduring the task of adapting to being a filly and helping to stop a potential disaster from occurring, one would think that things are finally turning around for me. Sadly... fate will never be that nice to me. Now I have deal with ponies knowing that I was originally an alien, Twilight's desire to learn everything I know, as well as training a team of ponies to handle any interdimensional issues that could come to Equus thanks to Celestia's recklessness. My life just keeps getting worse.

Oh, and everypony said I'm also going to have to go through something else, but I didn't understand the word. Just give me a moment as I look it up. I think it started with a p.

Note: It is recommended to read Distorted Fate first. Also may contain some gore.
Updates Tuesdays and Fridays.

Art: WildSoulWS
Editors: FourponyChapters I-XXXV), Hyari(Chapters I-XIV) PersonalGamer (Chapters XXIX and onward) RockstarRaccoon (Chapters XXXVIII and onward), PinkieThePrankster (Chapters Chapter LVIII and onward)

This story is a sequel to Friendship is Grievous

The brutal Clone Wars have at last come to an end. The Separatists are no more, and from the ashes of the Galactic Republic, the Galactic Empire has emerged. Now, the ponies of Equestria must choose their path through a dark and terrible time.

TV Tropes page.

Cover art by Mix-up over at his his deviantart.