When committed agnostic Gabriel Stone's wife dies in an unlikely airline disaster, he pours himself into the writing of a story that has haunted him since his youth-a novel his devout wife had warned him never to finish. Inspired by a visit to the island of Patmos, he is fascinated with the visions beheld there by St. John The Divine while in political exile for his beliefs. Those visions included terrifying events delivered by what John described...