Human: Compose a short description of a religious scene outside of a cave with an altar. Assistant: 
This is a large cavern, almost circular in shape, with a domed roof of worked stone arching high overhead. A low altar rises in the center of the cave. Hundreds of bone-filled niches tower on all sides, climbing up the curving walls. One great stalactite descends from the shrouded heights of the dome like the accusing finger of an angry god.