A New York psychiatrist, Gallagher was skeptical yet intrigued when a Catholic priest asked him to examine a woman for a possible exorcism. Yet he came to see that the woman wasn't mentally disturbed-- she was possessed. Gallagher has since spent a quarter-century studying demonic activity and exorcisms throughout history. Here he chronicles the case he has witnessed, sharing in full details of these true-life tales of demonic possession. -- adapted from jacket and Amazon info
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