Niflheim

Niflheim (or Niflheimr) ("Mist Home", the "Abode of Mist" or "Mist World") is one of the Nine Worlds and is a location in Norse mythology which overlaps with the notions of Niflhel and Hel. The name Niflheimr only appears in two extant sources, Gylfaginning and the much debated Hrafnagaldr Óðins.