A former-Human member of the Forsaken, Daeriun belonged to the Adams family of the Redridge Mountains. During life he chose to serve as a priest of the Church of Holy Light, and found himself in Stratholme at the worst possible time, wherein he was subsequently infected by the Plague of Undeath and transformed in due time into an undead servant of the Lich King. When the Lich King's power waned, he was freed from his grasp but the shock of suddenly gaining his own consciousness back jolted him into a coma that lasted for years. He was dragged off the battlefield once it was realized that he was conscious in order to eventually bolster Lady Sylvanas Windrunner's ranks.