It's about Fenrir, the wolf.
In Norse mythology Fenrir was Loki's son. Fenrir lived with the Aesir when he was young. The wolf was growing stronger and fiercer each day and prophecies foretold that he will cause destruction.
Fenrir had already broken the first two sets of iron chains called Leyding and Dromi which were supposed to hold him. So the Aesir, led by Odin tricked him into being bound by a silky, very strong thread called Gleipnir, produced by drawves from six mythical ingredients, which even the strong Fenrir couldn't break.
Upon being tied, he bit off Tyr's hand, who then thrust his sword into Fenrir's jaw so he wouldn't bite anyone else again.
On the day of Ragnarok, the earthquakes shaking Yggdrasil (the world tree) will break Gleipnir, and Fenrir will be free. He will remove Tyr's sword from his jaw, then go to engage Odin (aka Fimbultyr) in battle, defeat him and eat him. After which Odin's son Vidar will kill Fenrir.
It's about Fenrir, the wolf. In Norse mythology Fenrir was Loki's son. Fenrir lived with the Aesir when he was young. The wolf was growing stronger and fiercer each day and prophecies foretold that he will cause destruction. Fenrir had already broken the first two sets of iron chains called Leyding and Dromi which were supposed to hold him. So the Aesir, led by Odin tricked him into being bound by a silky, very strong thread called Gleipnir, produced by drawves from six mythical ingredients, which even the strong Fenrir couldn't break. Upon being tied, he bit off Tyr's hand, who then thrust his sword into Fenrir's jaw so he wouldn't bite anyone else again. On the day of Ragnarok, the earthquakes shaking Yggdrasil (the world tree) will break Gleipnir, and Fenrir will be free. He will remove Tyr's sword from his jaw, then go to engage Odin (aka Fimbultyr) in battle, defeat him and eat him. After which Odin's son Vidar will kill Fenrir.