 The Midgard Serpent debuted in "Marvel Tales" #105 (Feb. 1952) and was later tied firmly to Marvel continuity in the Silver Age of Comic Books in "Thor" #127 (April 1966).As in Norse mythology, the Marvel version of the Midgard Serpent is the nemesis of the Thunder God, who has two encounters with the creature - the events based directly on mythology - in "Thor" #272 - 273 (June - July 1978).An attempt to cheat the fatal prophecy made regarding a final battle between Thor and the Serpent occurred in "Thor" #274 - 278 (July - Dec. 1978), although the creature returned in "Thor" #325 (Nov. 1982 - Jan. 1983).