The Nemerions were a Durkoth family of Osâchar. They were known for their long line of scribes and writers, and one of the only families that knew the language of the Old Ones.
The Nemerions came to Bal-Kriav aboard the Spire of Krak-Oth. One of the first members of the family to undergo the mutation that would become the hallmark of the Durkoth Descent (995 HE - 1355 HE) was one named Rereth. He sought to halt his mutation and ended up using the Book of Orinite to help in his experiments on golems and the living. With the help of the Book of Orinite, and dozens and even possibly hundreds of golems, he built the great fortifications of Urgalroth.