The Dark Lord has brought his Immortal Army of the Dead out of the Underworld to totally destroy Avalon. Only Merlin the eleven year old son of the Elder god, Mithras the Unconquered, and his friends of the Old Magic can defend Camelot and Avalon in this battle for the very survival of Mankind. The Gates of the Underworld have been thrown down by the Dark Lord to release his Army of Devils and Demons who cannot be slain by any living hand. Merlin summons all the Mythical Beasts of Avalon, Draago the Dragon, Firewing the Griffin, Stormrider the Golden Unicorn to join with Gwydion and his Druids, Galahad the boy warrior, Grim the Ghoul, Kraak King of the Raven Kind and Myfanwy the Druid girl in this desperate battle for the survival of the World of Men. The Battle for Avalon is about to begin.