Detective Renée Ballard is given the chance to revive the LAPD's cold case unit and find justice for the families of the forgotten. The only catch is she must first unravel an unsolved murder, or lose this opportunity of a lifetime... Harry Bosch is top of the list of investigators Ballard wants to recruit. The ex-detective is a living legend - but for how long? Because Bosch has his own agenda: a crime that has haunted him for years - the murder of a whole family, buried out in the desert - which he vowed to close. With the killer still out there and evidence elusive, Bosch is on a collision course with a choice he hoped never to make...