Fenrir's Mane kolding transforming him into a bird

transforming him into a bird to swoop in and save Idunn from the giant

he bit down and took the hand of the god

forging treasures for the gods in the heart of the mountain

where he needs to get himself out of trouble and gets Idunn kidnapped to do so

the gods started to age quickly

Fenrir's Mane kolding transforming him into a birdThe Fenris wolf is the child of Loki and a Giantess. He is the brother Hel, and the World Serpent. He was a threat to all the Gods and so they tricked him and bound him. Never to be free, until It's foretold that during Ragnarok, Fenrir will break the bonds, devour the sun. And swallow Odin.