When Carver and Trudy walked into the big revival tent at the Baton Rouge Fairgrounds, a sweat-soaked man on stage was casting a demon out of a woman. There were at least a hundred people in the tent, all of them watching the phony drama on stage. Carver found himself watching with equal attention--but not for the same reasons. "By the power of the Holy Spi-rit, I, Aaron Guidry, cast you out-uh!" Guidry was tall and beefy, with a midsized beer belly offset by muscular arms and shoulders. His black hair and white shirt were soaked with sweat. Carver guessed he was in his mid-to-late thirties--not much older than Lee had been. "Leave this woman, devil!" Guidry touched the forehead of the woman who was kneeling before him, and she snapped away from him. Her body fell to the stage and