Human: Produce a detailed written description of a spooky scene inside a mansion with ledges, diamonds, and a vaulted roof. Assistant: 
The ceiling of the main hall climbs up in a steep curve of black marble. Light from an unseen source shoots up out of ledges on the long sides of the hall, glancing off the facets of small diamonds that have been embedded in the vaulted roof. The distant echo of someone crying softly carries through the narrow hall, coming from deeper in the darkness that lies to the north.