Below ground level, the stairway widened out into a generous corridor. Track lighting illuminated the way, hanging on the walls as well as the ceiling nearly four meters overhead. Intervals between the track lighting held advertisements for various shops and businesses in the Underground. Smells of meat-heavy cooking filled the cycled air, peppered through with the cut of the air-conditioning it took to cool the Underground. The rumble of voices, mostly ork, created a constant undercurrent of noise trapped between the walls of the Underground.