The bones belong to a boy that disappeared 20 years earlier and a skateboard in a suspect's house is the only clue they have to go on. Bosch researches old disappearances over the past 20 years and this is a problem to find witnesses and people he can interview to unlock the case.
To add to Harry's problems he starts a relationship with a new female cop that leads to complications for him in his private and professional life.
The novel is superb, there are more bodies along the way, Connelly really puts some believable twists and turns into his work. At first it looks like a mystery that will just remain a mystery after twenty years, then like a home run case before further twists lead to the conclusion on the last few pages of the novel.
Michael Connelly manages to convey the feelings I have of Los Angeles (I have only been there once) very well in addition to the feelings for Harry and his world. He is really in his stride with this novel and at the top of his writing game.
A 9/10 for this novel from me, no question about it.