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.

Luna's good experience with dating leads her to want to share her happiness with Twilight Sparkle.

Written for the Fifth Bimonthly Twilestia is Bestia contest on the forums. This contest's theme is "Luna the Shipper"

A cartoon pony named Twilight Sparkle visits me every other Friday night. Normally she just raids my fridge, questions my life choices, and forces me to watch her show. Tonight something is different. Has she always had wings?

Fair warning: Twilight’s views on her own fandom's creations aren’t exactly positive.

Cover art generously provided by statoose
Reading by CaptainBron3y
Reading by NovekBrony
Reading by Natetrix
Chinese Translation by Comradash
This story is approved by Luna's Fanfiction Library

The story continues in the sequel

Princess Luna, alicorn of the night and all things therein, sends happy dreams to her saviors on the anniversary of her return from the darkness of madness. One of these dreams belongs to Twilight Sparkle and once again Luna sends her visions of the pony she loves most, Princess Celestia.

Now if only they would come out and say something to each other about it. All the sexual tension in the castle is driving Luna nuts!

It looks like she's going to have to take things into her own hands.

Princess Celestia is in your bed, and you don't know why: what do?

Cute, funny, and short. Have fun reading!

Proofreading by RaylanKrios.
Now with audio reading by CaptainBron3y
Second audio reading by MeloncholyIguana.

Based on this story:
Princess Celestia is (still) in your Bed
Princess Celestia Has Stolen All Your Bed Sheets
Drunk CelestAI Is In Your Bed
Fimfic Authors Are In Your Bed
Princess Celestia is in Your Washing Machine

Princess Celestia, Regent of the Sun, has long guided the ponies of Equestria with a gentle and caring hoof. Never once did she allow herself to be swayed by thoughts of power, nor did she turn away from her subjects in their times of need. A ruler rightfully adored, she has helped an uncountable amount of ponies with their lives, finding their dreams, and fulfilling their destinies.

But comes the day she had long dreaded, but never feared.

Twilight Sparkle, her dutiful and precious student, has fulfilled her destiny and has become a new princess for Equestria. With her new role comes many responsibilities, but for a curious mare such as herself, so to come the questions. What does it mean to be an alicorn? What does it meant to be a princess? But more importantly than anything else, why is Princess Celestia an immortal, but Twilight Sparkle not?

It is a question the Princess of the Sun must now answer. Her last secret to be told to her greatest student.

This story is a sequel to Friday Night Twilight

A cartoon pony named Twilight Sparkle visits me every other Friday night. We talk more than we used to, but she still makes me watch that show of hers. Isn’t anything ever going to change?

Chinese Translation by ComradeSpark

Note: that Romance tag doesn't equate to mushy stuff, and it's not the reason for the Teen rating. This is much closer to Everyone than Mature.
Cover art generously provided once again by statoose
Big, heartfelt thanks to Skeeter The Lurker for helping me deal with reader reactions, and to Craine for proofreading the new final chapter.

I have heard ponies say that living so long would be a curse. That it is a burden. That it can break a pony's mind. There is some truth to that. It can be hard to know that you'll always be left behind as others pass on. However, that is not the whole truth, I am also blessed. I have an opportunity to see history play out in front of me and tell future generations of the ponies behind the legends.

In audio form: http://youtu.be/mTGMfwcAcwQ

All Twilight had to do was finish Starswirl the Bearded's final spell. She didn't have to become undead, seal her soul in the Elements of Harmony, or enlist her friends in an effort to fix everything... but you have to play the hand you're dealt.

Even if it's rotting off.

-

Big ups to Themaskedferret for all her support on this story.

I always wanted to go to Equestria. When I got the chance, I took the deal without reading the fine print. To my surprise, I didn't arrive there as a pony, or even as a human. It seems I get to view this world from a different perspective than what I've imagined.

My name is Echo. I am a Diamond Dog.

-Edited by the one, the only, Nathan Traveler!
-(Cover by Jovial_Shake of fimfiction.net)
-Now featured on Equestriadaily.com!