Wriggling flat on my stomach, I began the anxious journey toward the foot of the left-hand staircase, which seemed the more accessible of the two. I cannot describe the incidents and sensations of that crawl, but they may be guessed when one reflects on what I had to watch steadily in that malign, wind-blown torchlight in order to avoid detection. The bottom of the staircase was, as I have said, far away in shadow; as it had to be to rise without a bend to the dizzy parapeted landing above the titanic aperture. This placed the last stages of my crawl at some distance from the noisome herd, though the spectacle chilled me even when quite remote at my right.