In Norse mythology, Jormungand (also known as Midgard Serpent) is a giant snake surrounding the Midgard. It is one of the three children of the god Loki and the giant Angrboda from the Yrnvid Forest.
When Odin found out about the children of Loki and Angerboda, he ordered them to be kidnapped and then threw Jormungand into the ocean surrounding Midgard. The snake grew in the abysses until it eventually became so large that it surrounded the whole world that it could bite its own tail.
Jormungand was the greatest opponent of the god Thor. During his rehearsals in Útgarðar Thor had to lift the cat. The god of thunder, however, did not manage to do the job. As it later turned out, Skrýmir used his magic power to replace the cat with Jormungand.
There was a well-known adventure in which Thor went fishing with the giant Hymir. Instead of a normal lure, he knocked an ox head on the hook. After some time, a powerful jerk almost pulled the rod out of Thor’s hands, but he did not give up. Finally, he caught the angry Jormungand, who was caught on the bait. Horrified by the size of the monster, the Hymir cut the line with a dagger and let Jormungand escape.
On the twilight of the gods, Jormungand will emerge from the ocean and spit out venom, a poison that will cover the earth and the sky. Then his eternal enemy Thor will come to fight him. On the plain of Vigrid, God will defeat the snake, but before he can strike the final blow, he will be poisoned by his venom. Before Thor dies, he will be able to take nine more steps.