After escaping from Robin Hood and his merry band, King Arthur stops at the tower to woo his lovely Princess and pick up her latest order. She wants her slipper turned into gold. Arthur, Merlin and Splag travel to the Fountain of Oro, which lies at the centre of the Labyrinth of Lost Souls. Once in Labyrinth they are beset by falling rocks, trap doors, snake pits ans scampering little Cornish gnomes – but by far the greatest danger comes from Guinevere's shoe.