A secular book about exorcism says that one thing rankles demons. "The devil doesn't like Latin," writes Tracy Wilkinson in The Vatican's Exorcists. "That is one of the first things I learned from Father Gabriele Amorth, long known as Rome's chief exorcist, even though that has never been his formal title. "Now past the age of eighty, Father Amorth has dedicated the last decades of his life to regaining a measure of respectability for exorcism. Despite his advancing age, he continues to perform the rite several times a week at his office in Rome. "Scores of people seek him out....