Pictured (above) in this 18th century Icelandic manuscript are Thor and Hymir.Thor grasps Jörmungandr’s tongue and raises Mjölnir. Several Norse myths detail Thor’s encounters with Jörmungandr. Midgarðsormr, The Midgard Serpent, was the offspring of the giantess Angrboða and Loki. According to the Prose Edda; Loki’s three children by Angrboða were the giant wolf Fenrir, Jörmungandr and Hel (who rules over Niflheim). Odin cast Jörmungandr into the ocean which surrounds Midgard, the serpent grew so large that he was able to encircle the earth and clasp his own tail (in Oroboros). One legend has it, when Jörmungandr lets go - the world will end.