In his fourth outing, LAPD Homicide Detective Harry Bosch (Black Echo, Black Ice, Concrete Blonde) confronts deep family, police and political secrets as he probes an unsolved murder of decades earlier. Smart, tough, laconic and, under all that, compassionate, Harry lives by a code according to which ``Everybody counts or nobody counts... whether a prostitute or the mayor's wife.''

He begins this case in a departmental shrink's office, after having been suspended for attacking his commanding officer; his girlfriend has left him, and he's living in a house that's been condemned after an earthquake. In the enforced freedom from his job, he reopens the 30-year-old unsolved murder of an L.A. call girl-his mother. Skirting illegality along the way to the resolution, he unearths a lot of buried secrets and pain-not least to his own 11-year-old self.

Nobody here is pure - a couple of people are truly nasty - but all the characters are believable, as are even the quirkier plot turns. Edgar-winner Connelly smoothly mixes Harry's detecting forays with his therapy sessions to dramatize how, sometimes, the biggest mystery is the self.