** spoiler alert ** 
 This book certainly has it's creepy factors. I think I thought up something similar as a young girl (just the "what would happen if millions of souls were gathered in one area and had to kill someone to take their body...something along those lines) so this book definitely brought back some haunting and chilling memories. 
 I liked this book but like a few of reviewers said (or at least from what I read), the OCD was not too convincing? And I thought the ending would be a bit scarier I guess. However, I liked the ambiguous ending. Definitely unsafe everywhere! I'm kind of grateful since all my desks in college are not wooden PLUS they are definitely new[close to new] since I go to a private college ^_^; 
 I think if I had a wooden desk, I would be scared and imagine voices in my head for at least one day LOL.