Popes Leo, Gregory, Sabinian and Boniface were not only leaders of the Roman Catholic Church in the early centuries, they were also faced with the heretical practice of Pelagianism. Few of their faithful followers knew that Pelagius was in fact, the world's first vampire. This final book in the Vampire Tales trilogy follows Pope Leo and his followers as they attempt to eradicate the scourge of vampires from their world, and especially the most evil vampire of all, Nikolaus.