human
Write a detailed description of a rocky wilderness setting with a tunnel and a few bones.
assistant
Bits of gravel and small stones have been cleared to the sides of the tunnel in a nonsensical fashion, their origin unknown. Although uneven, the walls of the tunnel are mainly smooth, with a small protrusion or shallow pock in some places. A few old, yellowed bones, perhaps from a large rat, lie amidst the rocky debris.