The Merciless - Danielle Vega

Teenagers behaving brutally. Calling religon and possesion into question. 

This book won't be for everyone. I tend to like a twisted tale, so I LOVED it. 

But, be warned if you pick it up. It's graphic, it's frightening and I wouldn't recommend it for anyone too young. It's one of those "viewer discretion advised" type books.