Demonic Foes: My Twenty-Five Years as a Psychiatrist Investigating Possessions, Diabolic Attacks, and the ParanormalThe world's leading psychiatric authority on demonic possession delves into the hidden world of exorcisms and his own transformation from cynic to believer over the course of his twenty five year career. An unsettling, absorbing account of the phenomenon of demonic possession by a medical expert. Believers will love it, unbelievers will relish an argument with its premises, and even the most skeptical will marvel at the mysteries of human behavior it