In Germanic mythology, Fenrir is one of the three torturers of the world, along with Hel and the Midgard Serpent Jörmungandr. All three are children of the malicious god Loki and the giantess Angrboda. Fenrir fights against the existing order and ultimately embodies the annihilation of the world. The gods recognize his danger, chain him to a rock with a ruse and sink him deep into the depths of the earth. For the plan to succeed, Tyr, the god of war, even sacrifices a hand.
The wolf is chained for a long time, until finally, in the twilight of the gods, he breaks his chains and devours Odin. Odin's son, Widar, kills Fenrir, but it is too late, the Father of the Gods falls and, with him, the order of the world.