Father Jared Osborne has received an extraordinary assignment from his superiors: Investigate an itinerant preacher stirring up deep trouble in central Europe. His followers all him B, but his enemies say he’s something else: the Antichrist. However, the man Osborne tracks across a landscape of bars, cabarets, and seedy meeting halls is no blasphemous monster—though an earlier era would undoubtedly have rushed him to the burning stake. For B claims to be enunciating a gospel written not on any stone or parchment but in our very genes, opening up a spiritual direction for humanity that would have been unimaginable to any of the prophets or saviors of traditional religion. Pressed by his superiors for a judgment, Osborne is driven to penetrate B’s inner circle, where he soon finds himself an anguished collaborator in the dismantling of his own religious foundations.