Niflheim

Niflheim, also called Northmen's Despair was the second layer, also called second gloom, of Hades. Niflheim consisted mostly of forestland with bluffs that jutting out, which quickly fell away. Put simply, the layer looked like a gray version of a forestland on the Prime Material Plane.
Niflheim had no disease problem like Oinos, the first layer, had. The air was cooler than on Oinos. This gave rise to fog. This fog had some properties that made life on Nilfheim harder. First, vision was limited. Even with darkvision, people could not see further than 100 feet (30 meters) at most. Second, the mist had sound impeding effects. These two made predators, of which trolls, fiendish dire and normal wolves were the most common, dangerous. Third, the resulting dampness caused non-tended metal to rust.

Geography

Notable Locations
Death of Innocence The town was unique as its citizens did not succumb to the hopelessnes and apathy of Hades.
Palace of Loss The Palace of Loss was the divine realm of Shar.
Shadow Keep The Shadow Keep was the divine realm of Mask.

Type

Territory

Location under

Hades