Wurdireik (Old Rh. "Weird Ruler") was Thyn of the Withras clan, a tribe of plains-Northmen who were farmers all, but who often delved into magical fields. The clan was nearly wiped out by a surprise attack in TA 665, losing their greatest magical book, Sumlamuni, in the process. The Withras clan was the only northman clan to select a book-bound scholar as their Thyn.