Rainbow receives a letter from an anonymous sender telling her that strange beings called 'people' write violent stories about the peaceful inhabitants of Equestria. Who sent it? All she has to go on is an odd picture and a badly written poem. How do they know about these 'people?' Why was Rainbow told?

Long story short, this is my first fic, and it will most likely suck. Constructive criticism is encouraged! This description is most likely going to suck as well. Anyways, back to writing!
Oh, and OC requests are open. If you want your pony to be a main character, I'll either have to really like you, or your stories.