human
Make a concise location description of a spooky scene outside coastal area beach with barrel and catalog.
assistant
Built out over the harbor on stilts, the floor of the shack is pierced in several places by open trap doors, each of which has a rope slung through it. The walls have apparently been built of whatever driftwood washed ashore, and the sky is clearly visible in several spots through the loosely thatched roof. Barrels filled with water are lined against the walls, emitting odors that only a shark could love. On top of the largest barrel is perched a battered catalog.