Human: Compose a short description of a eerie scene inside a cave with a grate and stairs. Assistant: 
A sizable stream enters this cavern from an opening near the ceiling in the southwest wall. The water from the stream splashes into a rock-lined pool, dousing the walls with its spray as it hits. The pool feeds through a grate placed underneath a set of carved stairs. Where the grate goes is anyone's guess, as even the years of rushing water have left it intact and far too strong for even a giantman or dwarf to bend. The stairs have been carved of sandstone and lead upwards.