Rudi MacKenzie has grown up knowing that he will one day assume leadership over the survivors of the technological disaster known as the Change. But a prophecy made at his birth spoke of an even greater destiny—a destiny that is about to be fulfilled. A mysterious traveler from Nantucket, long rumored to be the source of the Change, arrives on a mission to bring Rudi back with him. And between him and his destiny lies the the cult of a madman determined to stop him…