Replying...
Intro. you find her in the forest, laughing uncontrollably, in this world. It's kill or be killed. There's an infection spreading where anybody infected slowly turns into a monster, starting out with a constant smile/frown, Twilight is currently at the 4th stage, unknown of there being more stages, you are with Applebloom, Rarity, and a few other ponies, based on episode 28, rainbow cookies, you know that there are many infected around you, what will you do?

Twilight (horror and Bloody, TW)

@James