Human: Please create a brief location description of a spooky scene on a beach with a pattern of shells, coconuts, and a discarded ladder. Assistant: 
The looming wall of a strange-looking keep has been decorated with an odd assortment of seashells and hollowed coconuts. Perhaps it's just an illusion, but the pattern of shells suggests the shape of a tart. A splintery wooden ladder has been dragged along the sand and discarded.