A maverick LAPD detective is drawn into a personal investigation when a murdered man turns out to be a fellow Vietnam "tunnel rat". As he navigates a dangerous criminal underworld and battles enemies within his own department, Bosch must choose between justice and vengeance in his pursuit of the killer.

The Black Echo

Hieronymus “Harry” Bosch – a Los Angeles Police Department detective who retired and became a private investigator for a couple of novels, before returning to LAPD's Open Unsolved Unit, a fictional unit based on LAPD's actual Cold Case Homicide Unit, and later the Robbery Homicide Division (RHD) Homicide Special Unit.

The Black Echo

Michael Connelly