Tap.

Tap.

Tap.

The sound again and again, tapping on her door. The young mare could only try to ignore the tapping and the scratching at her door.

Canterlot... For centuries, Canterlot was the shining gem of Equestria, the pinnacle of pony society. Now, it’s a reminder, a bleak and monolithic warning to the world. 

Changed by the chemical and technological poisons that plague the mountain, an abomination of nature, I wander the greatest disaster Equestria has ever seen. 

... I will escape eventually, and when I do, I hope my friends still see me as Twilight Sparkle, and not the monster that hides among the ruins. 

Was it a magical spell gone awry? An angry god laying waste upon a world that had forgotten him? A long and bloody war? An incurable disease?

Fluttershy couldn't remember what it was that had turned the world to this. All she knew was that she had to survive.

Speak no evil, only breathe. Hear no evil, only listen. See no evil, only darkness... or so the tale goes.
Twilight Sparkle retires an old tome to the shelves one final time, having more than enough spooks for one night. Now with Spike away at Applebloom's, she can relax, because after all, a story is just a story... right?

Read this in the dark.
Fanfic Reading
Artwork here.

Starlight Glimmer awaits her punishment at the hooves of Twilight Sparkle and her friends.

A crossover story that takes place within The Legend of Zelda series, taking place about three years after the conclusion of Majora's Mask. After investigating a rumor within the Everfree Forest, Twilight meets a youth dressed in green. Upon meeting Link, the Hero of Time that saved both Hyrule and Termina in Ocarina of Time and Majora's Mask, she finds herself in an adventure to save the world from a dark prophecy. Can she find a way to help Link stop an unknown enemy from reawakening Majora?

Finally, after years of begging, Celestia gives Twilight permission to access the Forbidden Wing of the Royal Library, a wing so secret even the other princesses can't access it. Twilight rushes to Canterlot, excited for the research potential.

Then she finds those books…

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Twilight Sparkle has been living a lie. Everypony told her what a beautiful and accomplished mare she was. Everypony thought she was a responsible adult. They were wrong. She was still just a filly trying to stumble her way through life.

Pinkie Pie has always been the most social pony, but a it's a little known fact that she has issues. Never mind, everyone knows that. But it's more severe than everyone thinks.

In fact, there's other side to her.

This is not original description, which is lost. So it might be not as fitting. This is also not the same artwork.
I got promoted from editor to writer.
Original story (and the first four chapters) by ponyofawesome92 (Now Midnight Rose)
(saved from deletion limbo)

"Hello, this is 911. What's your emergency?"

"My best friend's trying to kill me! Please, help me!"

"What's your address?"

"1124 Southeast Featherfree avenue, Ponyville! Please, come as fast as you ca- Rainbow, please! Just put the knife dow- AAAAAAHHHHHHHHHHH!!"

Rainbow "Danger-Pofessionalism" Dash, to say the least, is insane. Rainbow was administered as a patient at the Canterlot Asy- Psychiatric Hospital after trying to murder Fluttershy. Now, the friendships of the Mane 6 are put on thin ice, and more lives may be on the line if this doesn't come to an end. Will the Mane 6 live to love another day, or will the colors of insanity blot out the grey? Only time will tell.

*hit the top charts on the 17th of February, 2014