The Underdark
Beneath the surface of Faerûn lies a whole different world.

A world of drow, deep gnomes, and other denizens of the dark.

A world of cities like Menzoberranzan and Skullport, of warriors and rogues like Drizzt Do'Urden and Liriel Baenre and numerous others.

Leave the security of the surface world and seek out the darkness that lies below.

Welcome to the Realms of the Underdark.