«Former LAPD Detective Harry Bosch returns in this «New York Times» bestseller. Harry investigates the death of an old friend who had ties to the hunt for the infamous serial killer, The Poet. What Harry finds leads him into the most terrifying situation he has ever encountered.»

Henry Pierce has a whole new life — new apartment, new telephone, new telephone number. But the first time he checks his messages, he discovers that someone had the number before him. The messages on his line are for a woman named Lilly, and she is in some kind of serious trouble. Pierce is inexorably drawn into Lillys world, and its unlike any world hes ever known. It is a nighttime world of escort services, websites, sex, and secret identities. Pierce tumbles through a hole, abandoning his orderly life in a frantic race to save the life of a woman he has never met. Pierces skills as a computer entrepreneur allow him to trace Lillys last days with some precision. But every step into Lillys past takes him deeper into a web of inescapable intricacy — and a decision that could cost him everything he owns and holds dear.