Given 3 years before he must retire from the LAPD, detective Harry Bosch wants cases more fiercely than ever. And in one morning he gets two. DNA from a 1989 murder matches that of a 29-year-old convicted rapist. Was he an 8-year-old killer, or has something gone terribly wrong and the new Regional crime lab? When a city councilman's son jumps or is dropped from a window at the Chateau marmont, Bosch is called to death scene fraught with internal politics. Bosch's old nemesis, the councilman demands that Bosch handle the investigation. Now relentlessly pursuing both cases, Bosch makes two children discoveries. A sadistic killer has been operating on noon in the city for more than two decades and a political conspiracy threatens to reveal the dark history of the police department itself