human
Please generate a brief description of a spooky scene outside of a volcano with handholds and a cave.
assistant
The sheer concave of the exposed rock shields the eastern edge of the small lake with its pumice-laden crescent. It is all that is left of an ancient volcano, collapsed and filled over a millennium. What looks like a large cave pocks the cresent's surface, accessible by some evenly-spaced handholds.