It has been a few months since Twilight and her friends went to help save the Crystal Empire, and Twilight had to use dark magic to find the Heart. And ever since she got back, Twilight's been acting strange spending most of her time muttering to herself, hearing voices, and locking herself up in her now 'off limits' lab basement.

P.S. seeing how many corrupted twilight fics there are, I'm sorry if anything I write is from your stories.
P.P.S. Cover art credit goes to Sorelstrasz from deviantart