As much as I loved this book, I think I am going to stay with the "short but sweet" kind of review, because this is definitely the kind of book that is more enjoyable the less you know about it. Soooo....It's awesome. Read it. The end. :)From the description: Once upon a time there was a girl who was special. This is not her story. Unless you count the part where I killed her. Sixteen-year-old Alison has been sectioned in a mental institute for teens, having murdered the most perfect and popular girl at school. But the case is a mystery: no body has been found, and Alison’s condition is proving difficult to diagnose. Alison herself can’t explain what happened: one minute she was fighting with Tori—the next she disintegrated. Into nothing. But that’s impossible. Right?