The climb ahead of her was steeper than she had anticipated, and it required all her strength and courage to reach the top of what she guessed might have been an ancient river bank or, perhaps, a lateral moraine; but the view that was revealed rewarded her for the great effort.

Below her was a fringe of wood through which she could see a broad river, and to her right the mountains seemed very close now.

Forgetful of lurking beast or savage men, the thirst tortured girl hurried down toward the tempting water of the river. As she neared the bank she saw a dozen great forms floating on the surface of the water. A huge head was raised with wide distended jaws revealing a cavernous maw, but Rhonda did not pause. She rushed to the bank of the river and threw herself face down and drank while the hippopotamuses, snorting and grunting, viewed her with disapproval.

That night she slept in a tree, dozing fitfully and awakening to every sudden jungle noise. From the plain came the roar of the hunting lions. Below her a great herd of hippopotamuses came out of the river to feed on land, their grunting and snorting dispelling all thoughts of sleep. In the distance she heard the yelp of the jackal and the weird cry of the hyena, and there were other strange and terrifying noises that she could not classify. It was not a pleasant night.

Morning found her weak from loss of sleep, fatigue, and hunger. She knew that she must get food, but she did not know how to get it. She thought that perhaps the safari had reached the falls by now, and she determined to go up river in search of the falls in the hope that she might find her people—a vague hope in the realization of which she had little faith.

She discovered a fairly good game trail paralleling the river, and this she followed up stream. As she stumbled on she became conscious of an insistent, muffled roaring in the distance. It grew louder as she advanced, and she guessed that she was approaching the falls.

Toward noon she reached them—an imposing sight much of the grandeur of which was lost on her fatigue benumbed sensibilities. The great river poured over the rim of a mighty escarpment that towered far above her. A smother of white water and spume filled the gorge at the foot of the falls. The thunderous roar of the falling water was deafening.

Slowly the grandeur and the solitude of the scene gripped her. She felt as might one who stood alone, the sole inhabitant of a world, and looked upon an eternal scene that no human eye had ever scanned before.

But she was not alone. Far up, near the top of the escarpment, on a narrow ledge a shaggy creature looked down upon her from beneath beetling brows. It nudged another like it and pointed.

For a while the two watched the girl; then they started down the escarpment. Like flies they clung to the dizzy cliff, and when the ledge ended they swung to sturdy trees that clung to the rocky face of the great wall.