Sonja reaches the port of Venzia in Argos. After witnessing strange events, she is abducted and later finds herself in a mystifying maze. Sonja learns from an old wizard that the Hidden One and a demon are prisoners of the maze, and need Sonja's strength and the Heart of an Ancient Holy Creature in order to be freed and rule the world. While the wizard uses his powers to insure that the heart never arrives to the maze, Sonja proceeds to end the terror of the two prisoners.