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.

Twilight's ascension to the throne was supposed to be a joyous occasion, but as the months have passed and the shadows of the world grown a little darker, the lessons of her mentors and the weight of her responsibility has done nothing but made her more uncertain about her ability to rule.

Now, on the day of a grand gathering of nations, an attempt on the life of one princess and the abduction of the other brings with it an old foe and the weight of the world. With the fate of empires resting on her shoulders, Twilight must undertake a grand journey into the heart of madness and the untold history of Equestria to save her princesses and the world entire...

But save them from what?

Featured on Equestria Daily 10/12/13
I am humbled once again to be assisted by the brilliant RainbowDri in bring this story to fruition. I couldn't have asked for a more insightful assistant or all-around excellent guy.
Coverart supplied by the extremely talented dreampaw (Power leads to corruption). I can't thank her enough.

Twilight Sparkle had everything she wanted and then it exploded.

That was last week. And sure, she got a swank new castle out of it, but that's poor consolation. Coping with what she's lost - and gained - isn't as easy as it sounds. It's a good thing she doesn't have to deal with this on her own.

Twilight Sparkle is tired of this nonsense.

Every day, a slew of articles all focused on the minute details of her life invade her beloved newspapers. "Twilight Sparkle Eats Peaches." "Twilight Sparkle Hates Tea." "Twilight Sparkle Uses a Microwave." "Twilight Sparkle Makes Toast." All of it clogging up her precious sources of information from cities across Equestria.

But no more. The time has come to put an end to it, once and for all.

Written with thanks to Marceline from the #FimFiction IRC and for no good reason other than it sounded funny in my head.

This story is a sequel to The Celestia Code

When the monsters created by the dark crystal engine escape their prison, it's up to Princess Twilight Sparkle to deal with them. She gets help and advice from Princess Luna, but things don't go as planned. In fact, when a pony who relies on logic and rationality tries to navigate the stormy seas of emotional entanglement while simultaneously saving Equestria from a horde of evil creatures intent on destroying everything they encounter, nothing goes as planned.
AUDIOBOOK by VisualPony
WARNING: Major spoilers in the comments.

Book 2 of the Alicorn Adventure series.

Goodreads Page
100% Approved by Twilight's Library!

The Badass Twilight tag applies more than ever, but please note the new tags.

This story is a fairly direct continuation of The Celestia Code. You might be able to follow it without having read The Celestia Code first, but it's better if you do.

The sequel is here: The Twilight Enigma

Most excellent pre-reading/editing done by the erudite AcademicPony and the dapper statoose!

Princess Twilight Sparkle discovers a centuries-old mystery hidden in the Royal Archives. Her investigation leads through layer after layer of deception and misdirection, setting her hooves on a path that seems to be leading to a mysterious secret. Along the way, she learns that some friendships can be very, very strange.

Book 1 of the Alicorn Adventure series.

AUDIOBOOK by VisualPony
Featured at the Royal Canterlot Library
TV Tropes Page (Courtesy of Sandtalon)
Goodreads Page (Courtesy of Facedeer)
Equestria Daily Page

WARNING: Major spoilers in the comments. Takes place several months after the end of season four. (Not a Da Vinci Code crossover, BTW!)

Do you see a dark tag? No, you don't. Not dark. Well, okay, there are a couple of dark-ish bits, but that's all. Not enough to warrant a tag. Speaking of tags, there really ought to be "Badass Twilight" and "Friendshipping" ones.

Sequels and side-stories (and more) can be found here Offprint and AO3, and a hardbound two-volume set of all that can be ordered from The Ministry of Image.

My editor for the first edition of this story was Gogito, and I can't thank him enough for all the hard work he did. My editor for the revised version was PresentPerfect, and he did a terrific job of getting the story into excellent shape.

A terrible affliction has befallen the peaceful town of Ponyville, and the lavender unicorn and her friends are right in the middle of it! And the edges of it. Heck, it's pretty much lavender unicorns all over.

A story unrelated to anything.

This story is a sequel to It's a Dangerous Business, Going Out Your Door

EDIT: 6,000 unique views! Thank you so much to everyone who has read and enjoyed this story.

TVTropes Page

An ancient evil has awakened. No, really, it has. From the depths of time, a black, noxious threat has risen up after millennia of imprisonment. It washes like oil over Equestria, swallowing up towns and uncovering terrible secrets long buried. Twilight Sparkle, Applejack, Rainbow Dash, Pinkie Pie, Fluttershy and Rarity are prepared to combat this great darkness. However, to do so, they must uncover the truths about the Elements of Harmony, and the truths about the ancient forerunners of Equestrian culture. What they find will challenge their conceptions of their own places in history and ponydom's place in the world. The six Bearers of the Elements must draw upon their friendship and the strength of their hearts to stand firm against the darkness. If they fail, it will mean the end of everything.

UPDATE: 8,000 unique views! Wow! I'm incredibly flattered!

TVTropes Page

Plowpony's Day- a day of peaceful rest and relaxation. Or it was, until Twilight Sparkle badly mangled a teleportation spell. It has left her with a bad case of Horn Rot, a disease that if untreated could prove fatal. What's more, the malady is advancing faster than the slow-brewing potion that cures it!

There is one swifter cure: the Beneviolet, a star-shaped flower that grows in the distant Archback Mountains, far beyond the western borders of Equestria. Applejack, Rainbow Dash, and Rarity choose to undertake the long journey for the sake of their friend. Their path will wind through floes of ice, across gold-tinted plains, into distant forests glimmering with magic. They will learn much about the world beyond their homeland- and much about themselves, as well.

Yes, it's "Dangerous Business," here on FIMFiction. A huge debt is owed to all those who have supported me over the years. I've edited the story some to remove extraneous bolding and italics, but other than that, it remains unchanged. I hope new readers enjoy it as much as old ones did.

TVTropes Page

(A collab by JaketheGinger and Luminary)
Equestria isn't what it should be.

Celestia is a figure of distant mythology. Progress has replaced harmony as society's watchword. Progress born of spell, steam and gears. A dark corruption eats away at Canterlot and stretches out its influence.

In the shadow of the dying capital are scattered points of light. The selfless pink toymaker, caring for nothing but a smile. A unicorn noblemare feeding the ghettos. An airship captain who gave up wealth and status to stamp out injustice. They, amongst others, are thrown together by danger and flight, and find themselves gambling on a desperate bid to restore Equestria.

(Welcome to EqD ponies! Thanks for the feature!)