From the ancient Mesopotamians to Galileo to Google Maps, humanity has sought to answer a fundamental mystery of our existence.
What is at the world's end, what lies beyond the oceans? Is it outer space? A sea of stars? Perhaps. Nah, it's a snake, big snake too.
That's what the Norse gods would say anyway, and they would know because they put it there.
This snake at the end of the world was named Jormungandr and was one of 3 children of Loki and the giantess Angrboda.
Unfortunately, Jormungandr and his siblings were prophesized to bring great misfortune to the gods, which is never something you want the gods to hear about you by the way, so to nip this problem in the bud, Odin, father of all of the gods, picked up Jormungandr and threw him as hard as he could towards the sea.
Get out of here, snake! He cried, but Jormungandr did not die.
Instead he lay there in the water. And as he did he grew, he grew so long and large he came to encircle all of the earth, a serpent that surpassed the whole world.
There could not be a more fearsome and formidable creature, except perhaps for the god who could kill him.
Meet Thor, son of Odin, god of thunder, god of lightning, god of strength and god of really wanting to beat up that snake. And for him, it all started with a cat.
One evening, Thor and his friend Mjolnir deep into a long journey, stopped for a night's rest at the most enormous castle they'd ever seen, and in the crowded great hall was the king, a giant by the name Utgarda-Loki.
