Without thought of the possible consequence, I darted into the shadows of the tunnel, feeling my way along through the gloom for some distance. The noises of the amphitheater had grown fainter and fainter until now all was as silent as the tomb about me. Faint light filtered from above through occasional ventilating and lighting tubes, but 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 nearby 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 envelopes Pellucidar, and with a smile I stepped forth into the day-light. Rank grass, waist high, grows upon the plain of Phutra--the gorgeous flowering grass of the inner world, each particular blade of which is tipped with a tiny, five-pointed blossom--brilliant little stars of varying colors that twinkle in the green foliage to add still another charm to the weird, yet lovely, landscape. But then the only aspect which attracted me was the distant hills in which I hoped to find sanctuary, and so I hastened on, trampling the myriad beauties beneath my hurrying feet. Perry says that the force of gravity is less upon the surface of the inner world than upon that of the outer. He explained it all to me once, but I was never particularly brilliant in such matters and so most of it has escaped me. As I recall it the difference is due in some part to the counter-attraction of that portion of the earth's crust directly opposite the spot upon the face of Pellucidar at which one's calculations are being made. Be that as it may, it always seemed to me that I moved with greater speed and agility within Pellucidar than upon the outer surface--there was a certain airy lightness of step that was most pleasing, and a feeling of bodily detachment which I can only compare with that occasionally experienced in dreams.