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Rh it was scarce sufficient to enable my human eyes to cope with the darkness, and so I was forced to move with extreme care, feeling my way along step by step with a hand upon the wall beside me.

Presently the light increased and a moment later, to my delight, I came upon a flight of steps leading upward, at the top of which the brilliant light of the noonday sun shone through an opening in the ground.

Cautiously I crept up the stairway to the tunnel's end, and peering out saw the broad plain of Phutra before me. The numerous lofty, granite towers which mark the several entrances to the subterranean city were all in front of me—behind, the plain stretched level and unbroken to the near-by foothills. I had come to the surface, then, beyond the city, and my chances for escape seemed much enhanced.

My first impulse was to await darkness before attempting to cross the plain, so deeply implanted are habits of thought; but of a sudden I recollected the perpetual noonday brilliance which envelops Pellucidar,