Human: Generate a description of where you are in a depressing scene outside the wilderness with an earth-sheltered structure, monoliths and a hill. Assistant: 
You are led right up against the mound's west slope, which meets the ground at a right angle. The precision of the angle leads you to suspect that this hill is actually an earth-sheltered structure of some sort. As you continue to explore, the brooding remnants of some ancient monoliths to the northwest cast a sense of abiding melancholy and sadness over the scene.