A holiday with Hades in the Underworld isn't Demon's idea of a good time. . . The new Official Beastkeeper to the Gods has another tricky challenge on his hands when Hades, Lord of the Underworld, pays a visit to the stables with his extremely hungry fire-breathing earth dragons. Where on Olympus can Demon find them some meat? If that wasn't enough, Hades' three-headed pet dog Cerberus has been in a fight with that horrible hero Heracles and is feeling rather poorly, so Demon's taking a trip across the River Styx.