From #1 New York Times bestselling author Lisa Gardner, a "frightening, full of twists, and completely satisfying" thriller in which Frankie Elkin must locate the long-lost sister of a serial killer (Karin Slaughter). 
Five-year-old Leilani Pierson has been missing for over a decade. Amateur detective Frankie Elkin is an expert at finding missing persons. But this case has unusually high stakes. The request comes...