It's 1982, and the innovative FBI Behavioral Science section is breaking new ground. Emma Lewis and Travis Bell, two teenagers with valuable skills, are recruited to interview convicted juvenile killers for information on cold cases.

When they're drawn into an active case targeting teenagers, everything starts to unravel. Over Travis's objections, Emma becomes the conduit between the FBI and an incarcerated serial killer, nineteen-year-old Simon Gutmunsson, who is a super-intelligent sociopath. And although Simon seems to be giving them the information they need to save lives, he's also an expert manipulator playing a very long game ...

Can Emma and Travis stop a serial killer on the loose - or will they fall victim themselves?


A riveting New York Times bestselling YA thriller that will keep readers on the edge of their seats from start to finish.