Wow, I loved this book! First off I'd like to say that I've never read anything quite like the world of Mackie Doyle. It was utterly unique, in both the world and the characters. The tone of the book was just as you'd think by seeing the cover, a dark and mysterious feel, with goodness incorperated by the way of the characters. 
 Ahh, the characters...Mackie was a wonderful narrator and really set the tone and helped me really visualize what was happening in the town of Gentry. Mackie's emotions and troubles in finding a place in the world where he felt he didn't belong, and that he was unnatural were amplified versions of what some teens of everyday life feel. I truly felt for this character, especially when his 'allergies' kept him from living out his life in the way that could make him feel somewhat normal. 
 Tate was an exceptionally strong secondary character and love interest. I loved her. She could fight her own battles and stand up for what she believed in while laughing in the face of danger. Most heroines are strong but Tate could take whatever life threw at her, making her tougher than the tough, and occasionally she was the one to save Mackie from dangerous situations, not the other way around as much. The role reversal was refreshing. 
 The overall plotline and creatures in the story were more unique anything I've read. Yovanoff pulled off a new story without the set-backs of cliches that most stories today have. Truly a fantastically dark story that I'd reccomend to anyone who enjoys a little bit of darkness in their life. <3