After a harrowing and dangerous quest, Twilight Sparkle and her friends have recovered Excelsior's Ecstatic Codex from an evil zebra cult intent on ending the world. The Codex, one of the greatest works of dark magic ever forged, carries within its pages a limitless collection of vile, twisted spells, all specially devised for anypony who opens the cover.

What do you do with a book of dark magic? If you're Twilight Sparkle, you put it in your library. Because that's where books go.

After all, books are for everypony.

Spike now harnesses the bloodstone scepter making him the ruler of all dragon kind. Of course he hands it off as part of an important lesson on friendship, right? Naw. He immediately goes mad with power.

Tensions between the Royal Sisters flare when Princess Luna is caught teaching the innocent young Princess Twilight Sparkle the pleasures of adultery, and that is the one thing which Princess Celestia cannot tolerate. Can Twilight Sparkle find a way to smooth their tensions and perhaps please both princesses instead of being caught between their passionate desires?

Picture: Public domain.
Tea: Earl Grey.
Temperature: Hot.

Placed Tenth in the Distant Shores competition of the Writeoff.me site in August, 2015. Rated Teen for… you know. I blame GhostOfHeraclitus for the inspiration, and Seether00 for the motivation.

Tonight, Celestia will talk to Shining Armor. With just one conversation, she needs to save Equestria.

A homage to Pearple Prose, written in her style. Cover art by LoloPan. Proofread by Queuefka Palazzo, Lucky Roll, Selbi, Mr Numbers, Magello, and Pearple Prose herself.

As seen on EQD and the RCL interview.

Reading by Illya Leonov.
Reading by VocalNoctis
Chinese translation by Dreams Set Free.

Twilight has been messaging Dragon Lord Ember for two weeks now, and the other ponies are wondering whom the new Princess’s pen pal is. Twilight gets a brilliant and terrible idea. Cover art by the sensational PixelKitties.

Twilight Sparkle never seemed to notice Lyra Heartstrings. She didn't even remember Lyra's name.

They were friends back in Canterlot and even went to school together. Yet Twilight didn't notice that Lyra just happened to move to Ponyville the same day she did. She didn't even notice when Lyra appeared at her welcoming party. Nor did she ever seem to spot her old classmate passing by in the background on any other day during her stay in Ponyville. Some days she could look right at Lyra and never realize that they knew each other.

Lyra isn't a very noticeable pony. She has put a lot of effort into that.

Set in late season 5, after Amending Fences.
Note: Lots of spoilers in the comments.

This story is a sequel to Twilight Sparkle of the Royal Guard

Between castle gossip, professional rivalries, a blooming romance, and a mysterious malefactor still at large, Decurion Twilight Sparkle has a lot on her plate. Hopefully, she'll make a few new friends as she moves towards the destiny she's chosen for herself.

As per usual, big thanks to Magello for the rad cover art!

A breakfast conversation between the princesses turns toward Celestia's long history of losing fights.

Rainbow has a fever. Unfortunately for her, the cure is not simply 'more cowbell'. It's up to Twilight and Rarity to figure out a cure, and bring their friend back from the brink of birdom.

Twilight improves upon the portal mirror to allow her and her friends to see alternate universes. They quickly learn things that may strain their current relationship with Rainbow Dash.

Awesome art by AnimeStrife009 on DeviantArt!
Chinese translation was done by Green Onion Nutritious and can be found here: http://tieba.baidu.com/p/3972797172
Russian translation was done by GrandCat and can be found here: https://ponyfiction.org/story/13869/
Thanks, you guys are amazing!
Made the featured box on July 14/15! Thanks everyone!