Shradin Mulophor was a Netherese necromancer who somehow survived the fall of Netheril and a thousand years after when he arrived at Undermountain in 1148 DR. This was during a period of major construction and expansion of the dungeon by Halaster Blackcloak. Shradin had been drawn by the ruins of Sargauth Enclave and, with permission from Halaster, converted it into a trading post which later flourished as Skullport. He became known as the Lord of Bones and took up exploring the Undermountain during Halaster's occasional absences.