The Underdark

The Underdark is a vast network of caves, tunnels and improbable ecosystems and geographical formations that exists deep under the surface world. Those that know of it know that it is rife with danger, particularly vicious monsters and deadly terrain. Little of the place makes proper sense, particularly the fact that its untrackable caverns seem to lie beneath and between every country in the world, leading most to believe that it is either a product of some ancient magic, or a place of planar disturbance: a demi-plane of darkness to the light of the surface world. 
While populated by a large variety of creatures and monsters the likes of which the surface has never seen, the Underdark is also home to several civilized races: in Mirilarin, the grey-furred Mountain Tribe mimigans make their home in the tunnels, and in Akroum and Cafeyete at least, undead lords and ladies, barred and bored with the vivan world, claim large swaths of territory to rule to their own ends.
Category:Underdark