Twilight Sparkle, Princess of Equestria, is still, above all else, a dedicated librarian and bibliophile. Books must be cared for. Books must be returned on time.

Books must be respected.

Now with dramatic reading!

Daring Do cannot believe her luck when she is asked to help explore the most ancient tomb known to ponykind. But terrible danger awaits her, for beneath the earth rests something beyond equine understanding.

Warning: comments contain ending spoilers.

TVTropes page.
Alternate ending by Duplex Fields.
Archived in the Pony Fiction Vault.
Reviews:
One Man's Pony Ramblings
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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.

True friends do everything together, but the night after Princess Twilight’s coronation, the bearers of the Elements of Harmony decided one of those things would be to go out clubbing.

It was a particularly bad idea.

Eleven months later, they find themselves doing yet another thing together which even the best of friends should avoid doing together.

Delivering foals.

My editors (who would like to remain anonymous): Masked Ferret, Tek, Docontra

Warning: Rated T because it contains scenes of childbirth (but not M because it doesn’t show… you know). Although all of you have gone through the process at least once, you may not remember just what was involved. Trust me. It’s both terrifying and worth it.

Picture source: Wiki

A collection of silly, bite-sized skits where the characters crush the fourth wall into dust to talk about the world of Rites of Ascension, all while poking fun at each other. Learn about the ascension process, cored weaponry, and more!

This is a NON-CANON Rites EU "story." (The characters break the fourth wall completely, so of course it has to be non-canon.) Art by my lovely and amazingly talented wife, Violet Squiggles! You do have to have read Rites of Ascension to really understand this one. You're going to be seriously lost if you start here. That being said, you do not need to read this story to understand what's going on in Rites. This is to add to something already whole (and maybe get a few laughs), not make up for shortcomings elsewhere. Also, I thought it would be fun.

Also, as this is non-canon to Rites, I can go back and change things if I like. Generally, this will only happen if something hasn't been explained in the canon stories yet and has to change for them. Hopefully I won't ever actually have go do that, but if I do, I'll point it out in the chapter.

Celestia has had enough of half-arsed promises from her loyal subjects. It's time to wear a different hat.

Also on: DeviantArt

Prince Blueblood is an insufferable jerk and pampered to the point that he can't tell how much he's missing with Rarity.

Isn't he?

Princess Celestia has called him to her study for a discussion about his behavior. Now he must answer for all his mistreatment of the mare.

Luna has returned to Equestria, but she is as cold and distant as the moon that held her captive. Celestia broods on her throne, regretting mistakes made and prices paid. Twilight Sparkle contemplates betrayal, and as her faith drains away, bitterness takes its place. And in the darkness, a relic of an ancient tragedy watches, his life consumed by greivances that he can neither remember nor forget. Betrayed and betrayers all, four ponies in need of a redemption that only one seeks. Will Honesty be enough to save them? Can one hoof, extended in trust and forgiveness, mend four wounded hearts?

Includes Applejack X Luna and slight Twilight X Celestia shipping.

With thanks to my editors, peppermint-roo.deviantart.com and sosweetntasty.deviantart.com

Written prior to season 2, so severely jossed by canon.

While sharing an intimate moment, Celestia and Twilight Sparkle have a little chat.

Cover art swiped from Longinius.

Dramatic reading by Monanniverse.

French translation courtesy of inglobwetrust.