Bosch, after two years of retirement, finds himself rusty in certain areas; his lack of finesse with the cell phone more than once threatens to blow his cover. But he proves his detective skills are still sharp, pursuing the Verloren case with a dogged, moral purpose. Connelly, too, is at the top of his game, and the latest installment of the Bosch saga comes with thrills, twists to spare, and a deeply satisfying conclusion.