I can't believe that I am saying this but I LOVED this book. I am not a fan of anything scary: books, haunted houses, being scared and especially movies (which I blame on my father). I thought I was going to have "nightmares" while reading this but it really wasn't that bad at all. Yah, there were some really freaky/scary parts in the book like the time you first meet Anna and also that weird "ghost" thing that was biting people but I think others scaredy cats like me will enjoy this. It kind of reminded me of the show Supernatural. 
 Cas was an excellent male main character. He is not your stereotypical teenager because he is nice to his mom, doesn't date girls and just leave them in the dust because he has never got anything of those things because his mom & him have been moving ever since his father died. He had a strong voice in the book and I think that helped to carry the story. 
 Lots of the times I didn't want to stop reading the story. There wasn't a lot of parts in the story that were just "fillers" and I think I just wanted to keep reading and wanting to find out more about Anna and Cas' story. I have to admit the whole romance between him and Anna was kind of weird but I guess love can find itself in any type of situation. 
 I can't wait to recommend this book to my students because I can actually say that I read a "scary" book. This book will appeal to both girls and boys. 
 I will most certainly will be reading on in the series!