In French mountains, more and more sheep are being found with their throats torn out. The evidence points to a wolf of unnatural size and strength. However Suzanne thinks it is a werewolf. Then she is found slaughtered in the same manner. Her friend Camille attempts to find out who is responsible and Commissaire Adamsberg is called in for help. In this frightening and surprising novel, the eccentric, wayward genius of Commissaire Adamsberg is pitted against the deep-rooted mysteries of one Alpine villages history and a very present problem: wolves. Disturbing things have been happening up in the French mountains; more and more sheep are being found with their throats torn out. The evidence points to a wolf of unnatural size and strength. However Suzanne Rosselin thinks it is the work of a werewolf. Then Suzanne is found slaughtered in the same manner. Her friend Camille attempts, with Suzannes son Soliman and her shepherd, Watchee, to find out who, or what, is responsible and they call on Commissaire Adamsberg for help.