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!

After the board rejects her research application, Doctor Luna tries something foolish; using herself as a test subject.

Surely diluting a pony's inner darkness is a worthy goal? Surely perfecting her elixir is worth the risk? Surely.

Thanks to Yami Vizzini for prereading and to Nonagon for prereading/editing.

This story was inspired by the song Lullaby for a Princess

I chose to expand upon the song, and write a series of events that would explain in detail how the corruption of Luna came to be.

This story is a sequel to Inexcusable

She looked just like Princess Celestia, except marred and broken. Her ceremonial barding had rusted slightly, and dirt matted her coat. Most noticeable was her hair; black streaks accompanied its usual multicolored luster. They looked like discolorations in an old photograph.

Worst was the scar across her chest. Her armor covered it, but nothing could hide what it meant.

The tarnished Celestia smiled at Luna. "H-hello, monster. I would say I am glad to see you, but that w-w-wouldn’t be quite accurate."

A big thanks to AlicornPriest for editing/prereading.

Russian translation by MLPMihail, with editing by Randy1974.

Comments contain spoilers. See here for a complete series timeline.

Twilight was born under the stars and night sky; she has always been special. Her mother is an author and famous at that for her writing of Daring Doo. Her brother is a member of the Royal Guards her father a Royal Astronomer. Twilight's family is full of great feats and she is no different. This tale is about the journey of achieving those great feats and of course the changes along the way

And when the 1000th year of the Summer Sun Festival rolls around she will learn just how special she really is.

Sex for reference to sexual spells and Gore for scenes of blood, injury, threats of death and violent illness.

This story is a sequel to Sunset Impossible

On the longest day of the thousandth year the Lost Princess shall return. And the Sun shall never set on her reign.

A thousand years has passed since the battle for the day that was later dubbed Nightmare Night.

Most of what took place that night has long since passed into legend; something Equestria's reclusive princess has done little to prevent.

Some say she wishes nothing more than to forget.

Others claim she is waiting.

Only whispers and stories remain. Stories of a lost princess, and the Nightmare she fell fighting.

The truth is far more terrible.

Twilight Sparkle, sole student, and confidante, of Princess Luna, knows nothing of the tragedy that has haunted her mentor for a thousand years. She also knows next to nothing of friendship.

That will soon change.

Rarity and Fluttershy have been friends for years, and every week they go to the spa. But after every trip, Rarity finds herself growing greener with envy over Fluttershy's beauty and grace, if not something more than just envy— and what might happen if she finds out Fluttershy feels the same way about her?
Rated Teen for moments of sensuality, foreplay, and sexual themes. Reader discretion is advised.
Assistance by Karrakaz, Blue_Paladin42, TheGreatEater, Setokaiva, Squinty Mudmane, Aurora, Starfall, and Ariamaki.
Cover Image by Megasweet, used with permission.
Image colored by Explosivegent.
Additional graphical design by Novel-Idea.
TV Tropes page can be found here, credited to Winter Lily.

Princess Luna and Derpy Hooves are best of friends and share a love of gaming. They play, they own, and they dominate in the online gaming world. They're just freakin' awesome alright? Gaming is what brought these two together as friends but as time goes on (and Princess Celestia's antics) will this love of gaming bring them something more than they expected? Will they become More than Gamers?

Wrote this while I was blasted and drunk so if you hate it... I don't blame you at all. It's going to be a chapter fic so yeah, deal with it.

Based off the Ask Princess Molestia tumblr but a bit more tame... I think?

Rated T for alcohol, minor language, and a whole lot of sexual themes and what not. C'mon, if it's based off a Princess Molestia tumblr and you really don't expect sexual shit, then you need to be sent to the moon.

Octavia's lived the high life for years. Practice after practice paid off and she's risen through the ranks. Now, she works for the Royal Orchestra itself, toiling every day to produce perfection. Untouchable, practiced, impeccable...lonely.

Vinyl couldn't be any lower. Out of home, out of work, and nowhere to go but to a cold grave. Cast out and left to fend for herself, Vinyl has nothing, not even a friend to call her own.

The two cross paths.

A love story that many have known, and yet different. Both come in broken, beaten down people, their only hope each other.

When Vinyl Scratch gets a bit too uppity, her producer, Sound Wave, decides to make it clear that he's in charge of every aspect of her life. Where she goes, what she says, and even who she dates. Octavia just wants to be left out of things, but gets roped in when Wave decides she and Vinyl would make the perfect couple.

Inspired by this story, by which I mean I stole the concept and ran with it. (Technically mature, although the naughty bits are only one paragraph long and clearly labeled as such.)

Credit to AlicornPriest for giving feedback on chapters 1-4.