As a building awaits demolition, a horrifying discovery is made inside the basement: a cage made from human bones
- with a terrified, feral child lurking within. Unbeknown to DI Phil Brennan & psychologist Marina Esposito, they have disturbed a killer who has been operating undetected for thirty years. A killer who wants that boy back. But the cage of bones is also a box of secrets
- secrets linking Brennan to the madman in their midst. With the death toll rising & the city reeling in terror, Brennan & Marina race to expose a predator more soullessly evil than any they've ever faced
- one who is hiding in plain sight.