The Interface Level Stairs

The Doctor’s chosen path of pursuit, this narrow metal stairwell descends in tight spirals around the interface shaft, its corrugated steel treads worn smooth by decades of maintenance and hasty ascents. The air carries the metallic tang of the ship’s oxidizing hull and the faint echo of the Doctor’s boots hitting each deck in rapid succession. The stairs provide the only non-lift route between the destabilized interface level and the lower decks, forcing the fugitive to gamble on familiarity with the ship’s layout to outpace his pursuer.