The Shadowfell

The Shadowfell, sometimes simply called Shadow, is a parallel plane from which necrotic energies and shadow magic stems. It exists as a sort of counterpart to the Feywild in the sense that it is a reflection or "echo" of the Prime Material Plane, except that it is a bleak, desolate place full of decay and death.

The Shadowfell is populated primarily by dead creatures such as ghosts, specters, and other undead who for whatever reason refuse to leave the Shadowfell and continue on to the afterlife. There are however, numerous other inhabitants, such as communities of shadar-kai, Shadovar, and dark ones.