Loki had three monstrous children, the wolf Fenrir, the fearful goddess Hel, and Jormungand, a giant serpent.
When Odin saw the serpent, he was filled with fear and disgust, and he cast the serpent from Asgard into the ocean.
There it grew so large that it encircled the entire world and became known as the Midgard Serpent.
Sailors who ventured far from land feared that the serpent would emerge from the ocean’s depths and destroy them with its jaws and venom.