human
Produce a detailed written description of a gloomy scene inside of a mansion with a domed ceiling, pillars, and a door.
assistant
Circular in shape, the floor is completely made from square-cut sections of black marble. Large, blackened marble pillars line the walls, ending with a domed glass ceiling high overhead. A narrow gap on the far side of the room leads to a sweeping stairwell with a mithglin-plated door beneath it.