Sotha Sil, Dome of Serlyn is a location found in The Elder Scrolls III: Tribunal. It is an uninhabited large domed room within Clockwork City, that the Nerevarine must go through during the main quests. The room contains a mechanical hub, with a door that opens intermittently. Inside two or three hostile Fabricants are waiting. A lever on the side of the hub opens the other doors inside, that leads through a tunnel to the Hall of Sallaemu.