Realm of Fire

Muspelheim

The realm of fire in the south — the hottest and brightest of all worlds. It has existed since before the creation of the cosmos. Inhabited by fire giants led by Surtr, who guards the realm with a flaming sword. At Ragnarok, Surtr will lead his host across Bifrost and set the world ablaze. The sparks from Muspelheim became the stars of the sky when Odin, Vili, and Vé shaped the cosmos from Ymir's body.

Jötunn Surtr

Lord of the fire giants from Muspelheim — will set the world ablaze and burn everything at Ragnarök.

Ragnarök
The doom of the gods — the great battle between divine and dark forces that cleanses the world for a new beginning.
The Creation of the World
How Odin, Vili, and Vé slew the primordial giant Ymir and shaped the world from his body.