Having left the LAPD's Open Unsolved Unit for the prestigious Homicide Special squad, Harry Bosch investigates the murder of a doctor whose death is linked to the theft of a dangerous radioactive substance that Harry fears may be part of a terrorist plot.

In a case that spans 20 years, Harry Bosch links the bullet from a recent crime to a file from 1992, the killing of a young female photographer during the L.A. riots. Harry originally investigated the murder, but it was then handed off to the Riot Crimes Task Force and never solved. Now Bosch's ballistics match indicates that her death was not random violence, but something more personal, and connected to a deeper intrigue. Like an investigator combing...

Back when Harry Bosch was just a rookie homicide detective, he had an inspiring mentor who taught him to take the work personally and light the fire of relentlessness for every case. Now that mentor, John Jack Thompson, is dead, and his widow gives Bosch a murder book, one Thompson took with him when he left the LAPD twenty years before-the unsolved killing of a troubled young man. Bosch takes the murder book to Detective Renée Ballard and asks her...

Harry Bosch is back as a volunteer working cold cases for the San Fernando police and is called out to a local drug store where a young pharmacist has been murdered. Bosch and the town's three-person detective squad sift through the clues, which lead into the dangerous big-business world of prescription drug abuse. Meanwhile, an old case from Bosch's LAPD days comes back to haunt him when a long-imprisoned killer claims Harry framed him and seems...