Human: Please describe the area of where you are in a spooky cave cavern scene with an island and stalagmites. Assistant: 
Before you stretches a vast underground lake. The ceiling and the far shore are lost in darkness and mist, but there is enough water here to create small waves lapping at your feet. As elsewhere in the great cavern, stalagmites rise out of the murky water. Beyond them huddles the dark form of an island.