Sixteen-year-old Mackie Doyle knows that he replaced a human child when he was just an infant, and when a friend's sister disappears he goes against his family's and town's deliberate denial of the problem to confront the beings that dwell under the town, tampering with human lives. My Thoughts: The cover of this book is what made me pick it up last year. The story is very engaging and kept me flipping pages. If you enjoy horror and action this is the book for you. I could see this being at least a runner up, if not the winner of this years YRCA.