Maggie Gardiner, forensics expert for the Cleveland police department, and Jack Renner, a homicide detective with a killer secret, return in bestselling author Lisa Black's new thriller as they confront the darkest threat yet to their careers -- and their lives.

The body of fifteen-year-old Rachael Donahue -- abandoned by society, raised in foster homes, and violently unapproachable -- has been discovered at the bottom of a stairwell at Firebird, the secure facility for juvenile offenders in Cleveland. For Maggie and Jack, Rachael's death comes with a disturbing twist -- the girl may have been involved with a much older man.

But Rachael's not the only resident at the center to come to a dead end. Firebird's ten-year-old “wild child” has overdosed in the infirmary -- back-to-back tragedies that appear to be terrible accidents. As a forensic investigator, Maggie knows appearances can be deceiving. And Jack knows all about deceit. That's why they both suspect a cold-blooded murderer is carrying out a deadly agenda.

As Maggie's ex-husband gets nearer to uncovering the secrets that Maggie and Jack must hide, it becomes increasingly harder for them to protect a new and vulnerable victim from a killer with unfathomable demons.