Back in the 1970s, when possession and exorcism were the cinematic and fictional flavor of the era -- one that historian Martin Marty appropriately called “the silly season” -- it fell to my lot to conduct a pre-publication review of Malachi Martin’s sensational book Hostage to the Devil. I was allied in this with an internationally celebrated clinical psychologist. Working independently, our conclusion was the same: Martin’s five “cases” were fabrications of an inventive but disturbed mind, lacking all psychological, historical, theological and pastoral credibility. Some time later, I interviewed Malachi Martin on television. A former priest, Martin had left...