LAPD Detective Renee Ballard and Harry Bosch come together again on the murder case that obsessed Bosch's mentor - but was this flame kept alive, or a secret that was meant to be snuffed out ? 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, J.J...