DIAMONDS!
At last the long day drew to a close. All were hungry and thirsty. All were anxious to leave the hard, uncomfortable ledge where they had been exposed to the hot African sun since morning.
Tarzan and Rhonda had been entertained and amused by the savage little wild-girl. She was wholly unspoiled and without inhibitions of any nature. She said or did whatever she wished to say or do with a total lack of self-consciousness that was disarming and, often, not a little embarrassing.
As the sun was dropping behind the western hills across the valley, she rose to her feet. "Come," she said; "we can go now. They will not follow, for it will soon be night."
She led the way into the interior of the cave that opened upon the ledge. The cave was narrow but quite straight. The girl led them to the back of the cave to the bottom of a natural chimney formed by a cleft in the rocky hill. The twilight sky was visible above them, the light revealing the rough surface of the interior of the chimney to its top a few yards up.
Tarzan took in the situation at a glance. He saw that by bracing their backs against one side of the chimney, their feet against the other, they could work themselves to the top; but he also realized that the rough surface would scratch and tear the flesh of the girls' backs.
"I'll go first," he said. "Wait here, and I'll drop a rope for you. It's strange, Balza, that your people didn't come to the cliff top and get us from above—they could have come down this chimney and taken us by surprise."
"They are too stupid," replied the girl. "They have brains enough only to follow us; they would never think of going around us and heading us off."
"Which is fortunate for us and some of them," remarked the ape-man as he started the ascent of the chimney.
Reaching the top, he lowered his rope and raised the two girls easily to his side, where they found themselves in a small, bowl shaped gully the floor of which was covered with rough, crystallized pebbles that gave back the light of the dying day, transforming the gully into a well of soft luminance.