Celestia wants to get into her throne room.

A kindergartener wants her to prove she's actually Celestia first.

(A stand-alone, no prior-reading-necessary part of the Triptych Continuum, which has its own TVTropes page and FIMFiction group: new members and trope edits are welcome. )

Now with author Patreon and Ko-Fi pages.

Cover art by EquesTRON.

For a thousand years, the Code of Harmony has ruled Equestria, and the Code of Dissonance has sabotaged its works at every turn. Now the war for control over the land will come to a head, and one unicorn's decision may decide the fate of all.

For though she does not know it, Twilight Sparkle is the shining example of the Code of Harmony. Her teacher, Princess Celestia is Harmony's most powerful master and she knows her enemies are hatching a plan that threatens to cast down the Harmony of her throne and all she has sacrificed to create.

What she does not know is her foe seeks a new Apprentice to turn to his dark ways. A unicorn with seemingly limitless potential for magic, whose thirst for knowledge may yet lead her down a dark path, who is known to be such a faithful student of magic, eagerly seeking the truth no matter how forbidden it might be...

Sequel: Code of Harmony

Novel Tale is an author that's been living in Canterlot for about ten years now. That's a pretty good track record for a changeling. He's even included a changeling character in his latest book, and his fans have been loving his take on such an obscure mythological creature, especially his biggest fan, Twilight Sparkle. Things are looking up!

Then an army of changelings from another hive attacks Canterlot.

Now all of ponykind knows that changelings are real, and his readers are sure to realize that the changeling in his book was too similar to the real thing to have just been based on a myth...

earlier chapters have been revised as of 7/19/13 to be more inline quality wise with the later chapters.

Featured on EQD 10/5/13!

Let it be known that there will be extensive changeling world building in the chapters to come.

cover image courtesy of ackdari.

Much thanks to Nyerguds for proofreading and to all my fellow tropers on the TvTropes pony fanfiction thread for helping me develop this from a vague idea into an actual story.

Princess Twilight sets up a war game for the Royal Canterlot and Crystal Empire guards. By kidnapping Luna and Cadance.

The guards thought she knew the rules. They thought she knew the guard manual backwards and forwards.

Sweetie Belle, Scootaloo, and Apple Bloom re-write the manual... and conquer Equestria.

Edited by Noble Thought.

Cover art: Princess Predicament by radiantrealm

One hundred percent approved by Twilight's Library (also approved by Discord).

Derpy Hooves is secretly a changeling.

Nopony particularly notices, or cares.

(New 9/15/19: Spanish translation by Spaniard Kiwi! Thank you!)

Lyra Heartstrings is a up-and-coming musician living in the quiet town of Ponyville. Her marefriend Bon Bon owns and operates Canter Candies, the town's specialty sweets shop. They've been together for years, and everypony around knows what a happy couple they are. But any relationship has its ups and downs, and it's hard to ignore every awkward moment.

Like when Lyra's ex arrives in town.
Because she thinks Lyra still has a thing for her.
Because someone's been impersonating her for the past few years.

...Bon Bon might be in trouble here.

Thanks to Einhander for pre-reading and Exuno for editing!

Now with a reading by Goombasa!

Blossomforth is fresh out of college and ready to take on the world. Sure, moving to Ponyville to get a job on the weather team is going to be a bit of an adjustment, but it's nothing she can't handle. Besides, Rainbow Dash seems like a fine boss. Everything is looking good for our favorite watermelon-maned pegasus.

Then she meets a pony named Cloud Kicker.

Part of the Winningverse

Princess Twilight Sparkle is perfectly happy with her perfectly ordinary life in Ponyville. Every library book is properly shelved in its appropriate place, and her life continues on exactly according to her meticulously planned out schedule.

Then she gets a bodyguard.

Now she has to find some way to fit this new pony into her life on short notice. It won’t be an easy thing to adjust to—especially since Captain Storm Kicker’s presence makes it that much harder for her to go on living like the same old Twilight Sparkle she was before she became a princess.

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!

I am Cold, swirling snow that turns ponies against each other, searing ice that freezes them solid. I am Survivor, the one the Friendfyre spell didn't catch, an exception that proves an impossible rule. I am Fear, Frustration, Anger, Hatred, every emotion my Creator has ever felt. I am her Future. I am her Past.

I am Demon, and Clover the Clever is my Master.

Winner of Equestria Daily's Outside Insight Summer Fanfic Contest.

Featured in The Royal Canterlot Library on March 6th, 2015.