Crossing

When Harry Bosch left the LAPD before they could fire him, he hired maverick Defense Attorney Mickey Haller to sue the department for forcing him out. Although it wasn't the way he wanted to go, Harry had to admit that being out of the game had its benefits. Until Mickey asked him to help on one of his cases, and suddenly Harry is back where he belongs, right in the centre of a particularly puzzling murder mystery.  Book 21 of series.