Series hero detective Harry Bosch, now of LAPD's Homicide Special Squad of the Robbery/Homicide division, is back with a vengeance. Connelly (Echo Park) delivers a masterly piece of contemporary fiction that goes beyond the average police procedural by drawing on the current fears of terrorism and the political ramifications created by attempts to thwart it. A medical physicist is murdered, and the radioactive material he worked with is stolen. Thus begins the search to find the killer and the urgent need to retrieve the materials. Again, the usual departmental and federal politics and the unexpected plot twists combine for a great work. Connelly's novels are quite simply only getting better with age; the banter of the murder investigation is smart and the action taut. This sixth narration of a Bosch mystery by Len Cariou is excellent and brings the characters to life. Highly recommended.-Scott R. DiMarco, Mansfield Univ. of Pennsylvania Copyright 2007 Reed Business Information.