Step 6 of 12 · The Making of the Worlds
Muspelheim (Múspellsheimr)
Why this step
Then the other side. Gylfaginning puts Múspellsheimr in the south, too bright and glowing for anyone not born there to enter, with Surtr guarding its border. Its sparks, meeting the frost from Niflheimr in Ginnungagap, begin the making of the world. The entry notes that the same fire returns at the end of the world; on this trail it is only the warmth that melts the ice.
From the Lorebook
The hot, bright world of fire, in the south.