Given a choice to fight against the Vorokhoi or to labor in the mines for the rest of his life, Theren Graycastle chose to fight. Though formerly a criminal, now Theren serves as an agent of King Hesketos II. He is a grim, stealthy man who served in the mountains with Alerius Caratillus. Theren has turned his ruthless pragmatism to the service of the Sun God, having taken holy vows to the militant Dawnseekers after being one of the two witnesses to the resurrection of Brother Augustus.
After the battle of Hyrkala, Theren remained in the city to help cleanse the Bone Citadel, while the others dispersed to fight other battles or return home.