... then there was a fog.
Niflheimr “the misty home” is a world of pure cold or ice, shrouded in mist. From it flowed the rivers into Ginnungagap at the beginning of time that now flow into Hvergelmir, a part of the Well of Wyrd. It is believed that the Nibelingen (MHG) or Niflungar (ON) of the Sigurd myth may have originated there. Source
Interestingly, the Nibelingen are related to the Mountain of Promise through both the idea of a hoard of treasure and a dwarf who leads to it:
The German Nibelungen — with the corresponding Old Norse form Niflung (Niflungr) — is the name in Germanic and Norse mythology of the royal family or lineage of the Burgundians who settled in the early 5th century at Worms. The vast wealth of the Burgundians is often referred to as the Niblung or Niflung hoard. In some German texts Nibelung appears instead as one of the supposed original owners of that hoard, either the name of one of the kings of a people known as the Nibelungs, or — in variant form Nybling — as the name of a dwarf.
Perhaps I am of the lineage of the Nibelungen.
The Nibelungen Burgundians.
The Nibelungen Hoard