human
Write a detailed description of a mystical setting inside a passage with runic bas-relief on the walls and a barrel vaulted ceiling.
assistant
The floor of the steep hallway is an obstacle course of floor slabs canted up and piles of boulders braced against them. Overhead, the ceiling is a convoluted barrel vault, its proportions looking off-kilter from the exaggerated twist of the passageway. The rock walls exhibit an expanse of runic bas-relief, its intricacy and sheer scope an amazing accomplishment. Stale air hangs in the corridor, thick with dust and the smell of antiquity.