Twilight Sparkle wakes up one morning to a harsh dose of unreality. She is stranded, without her friends, on an island which matches no known locale on Equestria. Surrounded and harried on all sides by the alien and the dangerous, she will find her mettle sorely tested, and find perhaps that the best friends you will ever have in your life are the ones you make when your back is to the wall...

Thanks to CedricBale and noobie56xx for tracking down the name of the artist so I could give them credit.

Edit: Now a collaborative effort with Loyal2Luna

Commander Shepard has been through a lot, but now that the Reaper War's over he can finally relax and take a little R&R, right? Soak up the sun, grab a few drinks, spend some quality time with Tali, introduce a new race to the galaxy... wait, what?

In the aftermath of the war, a new species has been discovered amidst the destruction and fire. A species that have access to powers never seen before, powers which could prove vital to the continuation of galactic survival.

The Citadel Council has elected to send Shepard, along with the rest of the crew of the Normandy, to introduce Equestria to the universe outside of their solar system.

Now Shepard must wade through obstructive bureaucrats, antagonistic journalists, and the odd, angry prince in order to bring Equestria into a new age of space and adventure.

So settle in, it's going to be one hell of a vacation!

Now has it's own TvTropes page

This story is a sequel to Last of the Dragonlords

Fluttershy hoped she wouldn't have to take up her weapons for a long time. She hoped she could enjoy the time she had with her friends. She hoped she could live a life of peace and prosperity. That she could watch her friends be happy, get married, have foals, and watch them grow old, and be with them until the day they die.

She could never have been more wrong.

Now, nearly two years after she learnt who and what she was, she must take up her swords Firewing and Drage Bane and her wing blades once more, as Equestria is broken apart by a ruthless, determined, bitter, and insane enemy.

But how can she do that when her friends and loved ones have suddenly turned against her?

Sequel to 'Last of the Dragonlords'. (Not sure how well it works on its own, but informartion regarding the events of the first story is thrown through the story, allowing easier understanding to those who haven't read the prequel story.)

Cover art A by arkkukakku112 (Used with permission).

Rated Teen for violence. Some strong, but again not gory.

On secret assignment from Princess Celestia herself, Twilight investigates a powerful magical artifact for clues to the mystery of Luna's transformation in the evil Nightmare Moon. Incautious use of the artifact sends Twilight hurtling back in time. Can Twilight discover what caused Luna's transformation? And will she ever make it home again?

Kickass cover art used with permission from Bitz.
http://allthebitz.tumblr.com/