The replacement
Brenna Yovanoff.
- New York : Razorbill, c2010.
- 343 p. ; 22 cm.
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.