Under house arrest for confessing to being a magician, Mangus is summoned by the king to free his daughter, Princess Teresina, from the torment of a terrifying ghost. If Mangus cannot free her, it means certain death. But Mangus doesn't believe in ghosts — he doesn't even believe in magic! His servant boy, Fabrizio, is a secret friend of the princess, and is determined to prove that the ghost is real. Illustrations.