Dark elves or drow originate from Diomira, a fairy-tale world of mortals, where they came into conflict with the humans and light elves who lived there. Balance was achieved until the plane was consumed by Dis, where the surviving dark elves found themselves outmatched by their enemies.
The remaining dark elves fled to the Ditchwater Slums, where some plot revenge, particularly followers of Surtur, the last chief. Others simply focus on the difficult task of surviving in the slums. Many turn to crime or freebooting, which is basically just as bad.