A search for a pair of serial rapists leads Livia Lone down the darkest and most dangerous trail of her life. Ten years ago, the daughter of Homeland Security Investigations agent B. D. Little vanished into thin air. So did seven other girls—the crimes all bearing the same signature characteristics.

Now the disappearances have begun again. And Agent Little’s efforts to investigate are being blocked by forces far above his pay grade. Desperate, he turns to Seattle sex-crimes detective Livia Lone, the most obsessive hunter of predators Little knows.

Livia will need that obsessiveness, and a lot more. Because the two men Little is pursuing are fearsome.