The story of the 1851 Cideville witch trial lies buried in history. A witch named Thorel Felix, in revenge for the jailing of his coven leader, pronounced a hex upon two adolescent boys who lived with Father Jean Lariat in Cideville, France. Soon strange noises began in Lariat's parsonage. First he forced Felix to apologize to the boys. A local seigneur, Robert de Saint Martin, devised experiments to determine the poltergeist's source. Then Lariat and another priest tried an exorcism without success and a well-known occultist, the Marquis de Foursin, performed seances. Finally Father Lariat,...