Twilight lives a comfortable, expected life with the security of being surrounded by her mentors and friends. As she grows into a model unicorn, a dangerous being takes hold of the volatile Brood and drives them to war, breaking a long period of peace. After years of preparation for a higher order, Twilight is chosen to ascend beyond that of a typical sorcerer in a mysterious plan to counter the impending conflict.

During her dark, trying mission Twilight will discover a caged soul and unknowingly set them free, gradually acquiring an affinity for the darkness as a result. As she struggles within deepening conflict, she must push on and fight for what she believes in. With manipulation, deceit, and betrayal storming around, will she be able to contain herself and protect those she loves, or will she succumb to the creeping darkness and abandon everything she stands for?

*Warning: Comments may contain spoilers.*

This story is a sequel to Petriculture

It's been several months since Pinkie Pie made a stunning admission about her past that permanently changed her relationship with her friends, particularly Twilight Sparkle, but life seems to have settled back to normal (well, normal by Pinkie Pie's standards, at least). However, when an old nemesis returns and ensnares Twilight in her influence, it's up to Pinkie to make things right.

This is the second story in The Petriculture Cycle. There is a TV Tropes Page for the entire Cycle here.

Cover image by Page Turner; "Princess Twilight" vector by Nianara.

Ditto, a changeling from the attack on Canterlot, is flung far from her home and lands in Ponyville. She crashes into Twilight's library, and finds it a nice place to stay, quiet, abandoned, and peaceful. Until, of course,Twilight returns from Canterlot and finds her.

How will Ditto survive? She is lost, hungry, and far from her swarm.

Will the ponies find it in their hearts to help this poor, injured creature?

(Special thanks to Teapartycannon, who's story, Smoke and Mirrors, inspired me.)

Note: This story is no longer under revision, but there will still be a few spellchecks and such :)

The unthinkable has happened. A new Draconequus has emerged, apparently intent on plunging Equestria into chaos once more. To make matters worse, Pinkie Pie is nowhere to be found, forcing Twilight and the others to scramble to find a way to defeat this new threat without the Elements of Harmony.

Meanwhile...

After strange dreams, Pinkie Pie awakes and finds herself in the body of a Draconequus. Between strange new powers that she can't control, and, for some reason, an inability to communicate with other ponies, Pinkie finds herself alienated from her friends... but finds help from an unexpected source.

Twilight Sparkle never was a Unicorn and she didn't even know it.
What happens when her true heritage comes to light? Will she willingly embrace it? Or will she be forced to?

Beware of spoilers in the comments!

Edited by uTTerAbsurdity, Zervziel, Stormwatch and Gwenio

Cover art by the talented Cartoonlion and colored by the equally talented Stormwatch, original can be found here

Click here for the Tvtropes page

What if Rainbow Dash had been present when Discord gave the Mane Cast their first shot at him? How could things have gone different? How could this have changed things?How could this have changed Twilight?

Update Schedule Below the Break.
Now with the super editor FredMSloniker!
Now with a wonderful cover image by Conicer!
Also - Awesome Fanart - http://nyuuchandiannepie.deviantart.com/art/Discolight-273099814

Update Plans
December 11 - Edited versions of first four chapters
December 14 - Chapter 5
Future updates at least 1 time per week.
Total Planned Chapters - 12

A single changeling is cut off from the swarm during the attack on Canterlot. She's discovered by Vinyl Scratch and adopted as a pet. How will Wubsy the changeling, Vinyl, and Octavia cope when the town develops Changeling-phobia? Will Wubsy ever be able to prove her good intentions and stay with the mare she's grown so attached to? Rated Teen for off-page lesbian pony make-out session.

My bid to make "Wubsy" a more official part of the fannon. Check the source of the fic image to see the comic that started it all.

A gracious thank you to GarlicParsnip, Comma-Kazie, Chengar Qordath, JJ GingerHooves and Steel Resolve who proofread and co-authored the piece.

A single changeling is blamed for making Chrysalis' plan to take over Equestria fail. He's banished and thrown out of the hive, ending up somewhere far away.

Luckily, he ends up not too far from a certain well-known village, where he can feed to his heart's content.

Needless to say, not everything goes according to plan.

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Now with a French version, courtesy of Wansdich, here.
Fanart! Check it out here. And even more here!
Now in ereader-friendly PDF version, by Starflower Hooves! You can view and download it here.
Featured on Equestria Daily!

After a mishap involving the Transportalponder, the Courier finds himself in a place he doesn't recognize. With no way back and nothing else to do, he decides that wandering into the nearest town is the best option. Being the Courier, things aren't that simple...

A Fallout: New Vegas/My Little Pony: Friendship is Magic crossover

The style alternates between omnipresent third-person and the Courier recounting his tale to... Well, take a guess.

From a young age, Ditzy Doo knew she wasn't like most ponies. Jinxed and uncoordinated, she was shunned from all social circles as she grew up. When a friend finally comes her way, Ponyville's residential mailmare will surprise everyone—including herself—when she demonstrates how far she's willing to go to keep that friendship.