human
Make a detailed written description of a mysterious scene inside a tunnel cavern with water, a puddle, and a glow.
assistant
This particular tunnel appears to be a dead end, at least for anything larger than a rat. The ceiling drops dramatically until it nearly meets the floor, and the water has pooled at the far end of the room into a nice sized puddle. One might consider taking a refreshing drink, except for the odd, unearthly glow to the water. Nope, that can't be healthy.