On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?

We all know the story of how the Princess’ young student and five friends defeated Nightmare Moon and brought Princess Luna back to our lands. But what if the tale were false? What if the young Twilight Sparkle on the event of her entrance exam had not been rescued by Princess Celestia, but instead lost her mind among the power of her youthful surge and had to be sent away, far away before she could destroy all of Canterlot with her newfound power. Now the feral unicorn prowling the Everfree Forest only vaguely remembers her past, slipping away from constant terrifying attempts to capture her.

And she is beginning to remember what true power felt like.

Editors include: Peter, Justin, Featherprop, Mitch H, and Bad Horse
Featured on Equestria Daily
Reviewed by Chris on One Man's Pony Ramblings and by Paul Asaran on his review blog
Now with a TV Tropes page

Physical books are available on Lulu.com
Monster in the Twilight (Paperback) 272 pages
Monster in the Twilight (Hardback)

Twilight isn't having a very good day. An experimental spell blew up in her face, an army of changelings is attacking Canterlot, and she just died. Yet somehow, it looks like it's going to keep going downhill from here.

Given the chance to correct what's gone wrong, Twilight swears she's going to fix all this even if it kills her. Which it will. Frequently.

Cover art by Pixel Prism
Spanish Translation
Series TV Tropes page

Twilight looked over to her dear mentor, Princess Celestia, and found she had once again fallen asleep mid-lesson. Her intense debate on awakening the princess was cut short when the decision was taken out of her hooves.

“Huh? Oh. Twilight, I am so sorry for falling asleep again. I think we need to reschedule this for tomorrow morning.”

Twilight nodded. After all, Princess Celestia was obviously overworked. If only there was something she could do to help.

Now with a dramatic reading courtesy of DRWolf.
Additionally, there’s a Spanish translation by Spaniard Kiwi over on Deviant Art.

Current Episode: Season Zero – Episode One
Next Episode: Twin Twilights

Art created from images by Tim015 and ShilaDaLioness.

This story is a sequel to The Definition of Strength

It's Nova's first official day off, and he's decided to spend it in one place he knows he can relax: the Canterlot Bazaar, where anything and everything is for sale from all across the globe. But when he runs into a pony he didn't expect to see again, can he face who he once was? Or are old habits best left forgotten?

Third of the Side Stories to The Dusk Guard: Rise. Familiarity with Rise is not required per se, but recommended.
Side Stories so far:
Carry On
The Definition of Strength
Old Habits
Emoticon
Remembrance
Trust

The Saga has a TV Tropes page!
"This is 100% Approved by Twilight's Library!"
Added to Twilight's Library 4/9/2014
Special Thanks to Sonorus, Jorlem, Sinister Voice, and Bronze Aegis for their help pre-reading, editing and getting a summary together.
Art by NabderbD

Born blind, Snowdrop has always lived a life of limitation. Two years since the glorious event that changed her life and unearthed the blessings of winter, she has again fallen into a rut.
An unexpected visit from her favourite Princess and best friend is about to change that.
After the Princess insists that only Snowdrop can perform a certain dangerous task, she heads into the Everfree Forest to confront a mysterious, previously unknown creature. But how can a helpless blind filly possibly succeed where elite members of the Royal Guard have failed?

Sometimes it takes the blind to see what everyone else cannot.

The extended version of my entry in the Writeoff Association's April event, the prompt being Great Expectations.

Preread by BlazzingInferno, Foxy E, Comet Burst, Quill Scratch, Thornwing, Horizon, Not_A_Hat, PaulAsaran, and NightWolf289. Edited by BlazzingInferno, Foxy E, and PaulAsaran. Proofread and finalised by PresentPerfect and Cold in Gardez.
Thanks to Obselescence for letting me pick his brain in regards to the title.

Cover art by Cold in Gardez.

Featured on:
Equestria Daily!
Recommended by PresentPerfect!

After an experiment gone wrong, Twilight finds herself stuck in a body that's not hers, in a place she never wanted to be. Now she's in a race against time as Queen Chrysalis sets another one of her terrible schemes in motion, and the stakes couldn't be higher.

Editor: PiquoPie

Coverart commissioned from Evangel-Rising

You'd think that being trapped in stone would mean that, if nothing else, I could get some peace and quiet. Unfortunately, it seems that Celestia has other ideas.

She has appointed these ponies... these 'Keepers', as she calls them, to keep me entertained during my incarceration.

Honestly? I'd prefer the boredom.

Cover art by matrosha123
Spanish Translation by SPANIARD KIWI found here

There are no new cadets being trained, the big annual Wonderbolts party extravaganza isn't until this weekend, and Spitfire will only be away from the Academy for three days.

Fleetfoot is definitely ready for this responsibility.

Except she's not.

Somepony is totally getting fired.

Spanish Translation from Spaniard Kiwi!
Featured on Equestria Daily!
Apparently hit the feature box for like twenty minutes!
JohnPerry confirms: is a fic!
You Might Like This--May 2015 Spotlight!
Featured in EFNW's Fanfic Spotlight #34!

To Twilight Sparkle and Princess Celestia, it is a simple surprise visit to Canterlot. To the ponies of the Equestrian Civil Service, it is twenty-four hours of chaos, politics, weaponized dessert, politics, underhooved manipulation of media, politics, and things batrachian and tentacular. Who said bureaucracy isn't exciting?