Though partly obstructed by all manner of plumbing and mechanical equipment, the whole length of the shaft from here up to the surface was basically open. Air and light could filter up and down it, and sounds echoed down from above. At this distance they would no longer hear the Indian lady delivering her calm but firm instructions. Gunfire was audible, though. As before, that was sporadic. The shots seemed to come fewer and farther between as time went on.