Batman and Robin, on the trail of the Gimmick Gang, finds one book in the fireplace of one of their deserted hideouts and save it from burning: History of Mythology and Legend. The illustrations of Thor, Cyclops, and Pan are missing. From this Batman deduces they have gone to Legend City, "where, once a year, people dress up like legendary characters"—such as Robin Hood, Ulysses, or King Midas--"and hold a big celebration!" Once there, Batman and Robin go after the disguised trio of crooks, have a brief encounter with them, and are stopped by "Thor's" exploding hammer. When they catch up with the gang again, they are paralyzed at the sight of "Medusa," who has thrown a capsule of paralyzing gas at them. The two heroes are laid within the belly of a phony dragon "Fafnir," which is to be "sl