Acting Supt. Thomas Lynley and Det. Constable Barbara Havers face their most challenging and perilous case yet--the linked murders of four youths, three of black or mixed parentage--in bestseller George's absorbing 13th British police procedural (after 2003's A Place of Hiding). Crime fans will find plenty of forensic minutiae and details of police bureaucracy and politics, but it's characterization at which George really excels. The up-and-down career of Havers is at low ebb following her demotion from sergeant to constable, and her rocky personal life doesn't make that easier to bear. Lynley's professional life has become more difficult due to the continued absence of Supt. Malcolm Webberly and the need to deal directly with Asst. Commissioner David Hillier. The tension builds as the brutal serial killings continue and the pressure to solve them mounts. George expertly uses every device in the book from red herrings to blind alleys, from subtle twists to swift shocks. This is an outstanding and explosive addition to a popular series.