Deep Dwellers

The term for Drow, Duergar, and Svirfneblins, they can either be ‘artificial’ or natural. The former are simply the product of their non-deep dwelling parents spending too much time too deep underground, causing the mutation. Dwarves show the most resistance, almost always needing to delve below the Dwarven Line for it to happen, while drow have been born from the mother just visiting a cave during her pregnancy. Unfortunately these kind of deep dwellers have all the same mental quirks and tendencies of their natural counterparts.

Natural born ones are incredibly rare to see, sometimes uncovered in forgotten tunnels in Terranus but almost never elsewhere. As such nothing is known about their societies, but all have been seen to be violent and bloodthirsty. If their artificial cousins are in fact as close as is suspected they may also suffer a host of mental illnesses. Most mild just being odd quirks, but some such as the svirfneblins enjoy full blown schizophrenia from birth.