I'e read this book twice now. Both times I ended up reading it in one sitting because I wouldn't dare put it down. This is a great book that involves vampires and werewolves (but nothing like the Twilight series....it's a lot better in my opinion) , souls trapped in minds (it's easier to understand while reading than it sounds). I definetly reccomend this book for teens who are looking for exciting, immortal fantasy that ISN'T cheesy. Be aware that there is fighting and some sexual thoughts and actions (but none of which an average teen hasn't thought by age 15 or experienced by age 17). I love to read, over the summer I will read about 30-50 books, this is definetly one of the best that I have ever read. Addition information: I am 14 yrs old, this book has 440 pages (hardback copy). I have read, then bought, and love this book. I definetly recommend it.