A Gothic tale that takes its title from a peculiar ruin in S. Callisto Square in Rome. Some say it was placed there by the Devil himself, behind the Pope's palace, to become his throne. During the twelfth century, it was a place of orgies and black masses that inspired prophecies and easy healing. This is the stage where Alberto Militelli conducts his so called esoteric rituals. But he only pretends to be a sorcerer: for he simply has found his way to get rich and affluent. But his rise to the top is quick, as will be his downfall. For his game has bothered his Master and his worst enemy: the Devil himself.