In the first breezy installment of a projected new series from Scottish author May (The Firemaker
), Enzo Macleod, a Scottish forensic biologist who lives in France, bets that he can solve an old case with new science. Lonely and bored with his teaching career, the widowed biologist takes on the unsolved case of Jacques Gaillard, a public intellectual with a controversial political career who disappeared without a trace 10 years earlier. With the help of his adored daughter, Sophie, and new flame, Charlotte, a beautiful psychologist trained in criminal profiling, Enzo traverses France and Germany to follow a series of clues that lead to scattered body parts and Gaillard's dangerous killers. Despite some unlikely coincidences, this travelogue–cum–murder mystery makes for a fun puzzle. (Nov.)