All day he climbed, choosing the long way when it seemed safer, exercising all the lore of mountain-climbing that he had accumulated, and resting often. Night overtook him well up toward the summit of the highest ridge that had been visible from the base of the range. What lay behind, he could not even guess, but experience suggested that he would find other ridges and frowning peaks before him.
He had brought a blanket with him from the last camp and in this he rolled up on the ground. From below there came the noises of the jungle subdued by distance—the yapping of jackals and faintly from afar the roaring of a lion.
Toward morning he was awakened by the scream of a leopard, not from the jungle far below, but somewhere upon the mountain slopes near by. He knew that this savage night prowler constituted a real menace, perhaps the greatest he would have to face, and he regretted the loss of his heavy rifle.
He was not afraid, for he knew that after all there was little likelihood that the leopard was hunting him or that it would attack him, but there was always that chance and so to guard against it he started a fire of dry wood that he had gathered for the purpose the night before. He found the warmth of the blaze welcome, for the night had grown cold, and he sat for some time warming himself.
Once he thought he heard an animal moving in the darkness beyond the range of the firelight, but he saw no shining eyes and the sound was not repeated. And then he must have slept, for the next thing that he knew it was daylight and only embers remained to mark where the beast fire had blazed.
Cold and without breakfast, von Harben continued the ascent from his cheerless camp, his eyes, under the constant urging of his stomach, always alert for food. The terrain offered few obstacles to an experienced mountain climber, and he even forgot his hunger in the thrill of expectancy with which he anticipated the possibilities hidden by the ridge whose summit now lay but a short distance ahead of him.
It is the summit of the next ridge that ever lures the explorer onward. What new sights lie just beyond? What mysteries will its achievement unveil to the eager eyes of the adventurer? Judgment and experience joined forces to assure him that when his eyes surmounted the ridge ahead they would be rewarded with nothing more startling than another similar ridge to be negotiated; yet there was always that other hope hanging like a shining beacon just below the next horizon, above which the rays of its hidden light served to illuminate the figments of his desire, and his imagination transformed the figments into realities.
Von Harben, sane and phlegmatic as he was, was now keyed to the highest pitch of excitement as he at last scaled the final barrier and stood upon the crest of the ridge. Before him stretched a rolling plateau, dotted with stunted wind-swept trees, and in the distance lay the next ridge that he had anticipated, but indistinct and impurpled by the haze of distance. What lay between him and those far hills? His pulse quickened at the thought of the possibilities for exploration and discovery that lay before him, for the terrain that he looked upon was entirely different from what he had anticipated. No lofty peaks were visible except in the far distance, and between him and them there must lie intriguing ravines and valleys—virgin fields at the feet of the explorer.
Eagerly, entirely forgetful of his hunger or his solitude, von Harben moved northward across the plateau. The land was gently rolling, rock-strewn, sterile, and uninteresting, and when he had covered a mile of it he commenced to have misgivings, for if it continued on without change to the dim hills in the distance, as it now seemed was quite likely the case, it could offer him neither interest nor sustenance.
As these thoughts were commencing to oppress him, he became suddenly conscious of a vague change in the appearance of the terrain ahead. It was only an impression of unreality. The hills far away before him seemed to rise out of a great void, and it was as though between him and them there existed nothing. He might have been looking across an inland sea to distant, hazy shores—a waterless sea, for nowhere was there any suggestion of water—and then suddenly he came to a halt, startled, amazed. The lolling plateau ceased abruptly at his feet, and below him, stretching far to the distant hills, lay a great abyss—a mighty canyon similar to that which has made the gorge of the Colorado world-famous.
But here there was a marked difference. There were indications of erosion. The grim walls were scarred and water-worn. Towers and turrets and minarets, carved from the native granite, pointed upward from below, but they clung close to the canyon's wall, and just beyond them he could see the broad expanse of the floor of the canyon, which from his great height above it appeared as level as a billiard table. The scene held him in a hypnosis of wonderment and admiration as, at first swiftly and then slowly, his eyes encompassed the whole astounding scene.
Perhaps a mile below him lay the floor of the sunken canyon, the further wall of which he could but vaguely estimate to be somewhere between fifteen and twenty miles to the north, and this he realized was the lesser dimension of the canyon. Upon his right, to the east, and upon his left, to the west, he could see that the canyon extended to considerable distances—just how far he could not guess. He thought that to the east he could trace the wall that hemmed it upon that side, but from where he stood the entire extent of the canyon to the west was not visible, yet he knew that the floor that was visible to him must stretch fully twenty-five or thirty miles from east to west Almost below him was a large lake or marsh that seemed to occupy the greater part of the east end of the canyon. He could see lanes of water winding through what appeared to be great growths of reeds and, nearer the northern shore, a large island. Three streams, winding ribbons far below, emptied into the lake, and in the far distance was another ribbon that might be a road. To the west the canyon was heavily wooded, and between the forest and the lake he saw moving figures of what he thought to be grazing game.
The sight below him aroused the enthusiasm of the explorer to its highest pitch. Here, doubtless, lay the secret of The Lost Tribe of the Wiramwazi and how well Nature had guarded this secret with stupendous barrier cliffs, aided by the superstitions of the ignorant inhabitants of the outer slopes, was now easily understandable.
As far as he could see, the cliffs seemed sheer and impossible of descent, and yet he knew that he must find a way—that he would find a way down into that valley of enchantment.
Moving slowly along the rim he sought some foothold, however slight, where Nature had lowered her guard, but it was almost night and he had covered but a short distance before he found even a suggestion of hope that the canyon was hemmed at any point by other than unbroken cliffs, whose perpendicular faces rose at their lowest point fully a thousand feet above any possible foothold for a human being.
The sun had already set when he discovered a narrow fissure in the granite wall. Crumbled fragments of the mother rock had fallen into and partially filled it so that near the surface, at least, it offered a means of descent below the level of the cliff top, but in the gathering darkness he could not determine how far downward this rough and precarious pathway led.
He could see that below him the cliffs rose in terraced battlements to within a thousand feet of where he stood, and if the narrow fissure extended to the next terrace below him, he felt that the obstacles thereafter would present fewer difficulties than those that had baffled him up to the present time—for while he would still have some four thousand feet to descend, the formation of the cliffs was much more broken at the foot of the first sheer drop and consequently might be expected to offer some avenues of descent of which an experienced mountain climber could take advantage.
Hungry and cold, he sat beneath the descending night, gazing down into the blackening void below. Presently, as the darkness deepened, he saw a light twinkling far below and then another and another and with each his excitement rose, for he knew that they marked the presence of man. In many places upon the marsh-like lake he saw the fires twinkling, and at a point which he took to mark the site of the island there were many lights.
What sort of men were they who tended these fires? Would he find them friendly or hostile? Were they but another tribe of Africans, or could it be that the old legend was based upon truth and that far below him white men of The Lost Tribe cooked their evening meals above those tantalizing fires of mystery?
What was that? Von Harben strained his ears to catch the faint suggestion of a sound that arose out of the shadowy abyss below—a faint, thin sound that barely reached his ears, but he was sure that he could not be mistaken—the sound was the voices of men.
And now from out of the valley came the scream of a beast and again a roar that rumbled upward like distant thunder. To the music of these sounds, von Harben finally succumbed to exhaustion; sleep for the moment offering him relief from cold and hunger.
When morning came he gathered wood from the stunted trees near by and built a fire to warm himself. He had no food, nor all the previous day since he had reached the summit had he seen any sign of a living creature other than the game a mile beneath him on the verdant meadows of the canyon bottom.
He knew that he must have food and have it soon and food lay but a mile away in one direction. If he sought
