Sullust: Idyllast - Great Fountain Chamber You stand within a gigantic dome-shaped chamber carved out of the very heart of ; the ceiling no less than a hundred feet high and the walls at least the same apart. Various tunnels and passages run off from here, some reached by small staircases leading away from the center. From here you can see the four main corridors that run from this central chamber; the compass points of Idyllast each having their own separate district. There is also a set of silver doors, marked as an elevator.