Ryan Lock thought he'd seen it all, but nothing could prepare him for the world he enters when searching for missing teenager Kristin Miller.

Teaming up with Angie Garcia, a former trafficking victim turned advocate, Lock plunges into a shadowy realm where young girls are lured, groomed, and sold into sexual slavery.

As he races to find Kristin before she disappears into this dark web, Lock confronts the harsh reality that sometimes victims don't want to be saved. With time running out and enemies lurking in every shadow, Lock must push his skills and determination to the limit.

This gripping thriller shines a light on the hidden epidemic of sex trafficking, delivering a stark wake-up call wrapped in a pulse-pounding race against time.

When a teen goes missing, ex-military bodyguard Ryan Lock will do what it takes to save her from a chilling fate.... "Black writes with the pace of Lee Child and the heart of Harlan Coben" (New York Times bestselling author Joseph Finder).