Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Review from the Publisher

"The Devil's deepest while is to persuade us that he does not exist " Using Baudelaire's well known phrase as a starting point, Msgr. Cristiani has amassed convincing proof that the Devil does indeed exist and that he continues to manifest his presence in the modern world, no less than in earlier times. Because he documents with scrupulous care the still present phenomena of diabolical infestation, possession and temptation, his book has become one of the best ever written on the subject. Covers Satan's activity during the apparitions at Lourdes and his involvement in tormenting St. John Marie Vianney. No one studying possession, the power of the devil, and exorcism should miss this book. Powerful!