New York: Warner, (2006.). SIGNED - SIGNED on the title page. Harry Bosch has returned to the LAPD and is working on cold cases - or to use the term for the unit "open, unsolved cases" - in this novel, he and his partner Kiz Rider are investigating the death of a 16 year old girl almost 20 years before, using new DNA evidence as the starting point. 403 pp. ISBN: 0-316-734942.