Tuls Valen is the Dunmer Master of the Temple in Ald'ruhn.
He provides training (up to skill level 59) in Acrobatics, Hand-to-Hand, and Sneak.
He gives several quests and provides medium training in Acrobatics, Hand-to-Hand, and Sneak for higher-ranked members of the Tribunal Temple.
Tuls Valen asks for a demonstration of compassion from the Nerevarine, directing them to cure Bulfim gra-Shugarz, a victim of the Blight disease.
The Master of the Ald'ruhn Temple requests the investigation of a possible Nerevarine in Suran.
The Nerevarine is sent on pilgrimage to the Maar Gan Shrine.
Tuls requests the destruction of a Sixth House cult hiding in Hassour.