THE CITY OF GOLD
It required considerable encouragement and urging on Tarzan's part to prevent the blacks from abandoning the venture on the spot and hastening back across the valley toward the cliffs they had scaled the day before. But at length, by dint of commands, and threats that he would enter the city alone, they agreed to accompany him.
For fifteen minutes they marched along the face of the wall before they discovered a means of ingress. Then they came to a narrow cleft about twenty inches wide. Within, a flight of concrete steps, worn hollow by centuries of use, rose before them, to disappear at a sharp turning of the passage a few yards ahead.
Into this narrow alley Tarzan made his way, turning his giant shoulders sideways that they might enter at all. Behind him trailed his black warriors. At the turn in the cleft the stairs ended, and the path was level; but it wound and twisted in a serpentine fashion, until suddenly at a sharp angle it debouched upon a narrow court, across which loomed an inner wall equally as high as the outer. This inner wall was set with little round towers alternating along its entire summit with pointed monoliths. In places these had fallen, and the wall was ruined, but it was in a much better state of preservation than the outer wall.
Another narrow passage led through this wall, and at its end Tarzan and his warriors found themselves in a broad avenue, on the opposite side of which crumbling edifices of hewn granite loomed dark and forbidding. Upon the crumbling débris along the face
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