human
Please generate a brief description of a spooky scene inside a building hallway with marble and an alcove.
assistant
Stark and unadorned, the corridor turns a sharp corner into the adjacent hall. The nearest source of light lies many yards to the north and northwest, leaving much of the area swathed in shadows. Small seams run down and across the surrounding polished black marble, marking the edges of each perfectly cut block. A dark stairway is visible just beyond a large, arched alcove built into the eastern wall.