Human: Compose a short description of a eerie scene outside a town ruins with a lock, gate, bridge, and bone. Assistant: 
An elaborate gate made of bone is set into the outer wall. Now sealed by a fused lock, the gate looks out on a short path leading to a now collapsed bridge. The water quickens through the smaller channel formed by the bridge remains. Moonlight filters through the gate, casting a shadowy image of the gate on the grey ground.