Now trapped in Santiago's body, Father Vieri finds himself locked in the dungeon of the Castillo Lazarus - and at the sadistic mercies of the Inquisition. Yet as this exorcist now burns at the touch of the Cross, can Vieri escape before the demon Legion uses his body to paint the Vatican red? And when suspicion mounts over his new host's changed demeanor, to what terrifying lengths will Legion go to avoid being discovered? As the Devil lurks in the Church's most precious sanctum, no one will be prepared for what happens next - and in one bloody instant, the fate of Rome will be changed forever.