The Zhentarim Expedition
The underdark can be reached in a few places across the world, but most are kept very secretly and usually used for a particular person’s needs. However, there is one region with a system of tunnels. and caves that allow entrance into the underdark. It is common to see drow and dueregar, and and on rare occasion Svirfneblin can be seen. this is a very dangerous region as many ogres also roam this region and hunt almost anything that moves.