in anger, he picked up a rock and hurled it at the grim scavenger.
Lowering himself over the precipitous side of the gorge Tarzan half clambered and half slid to the sandy floor beneath. He had come upon the rift at almost the exact spot at which he had clambered from it weeks before, and there he saw, just as he had left it, just, doubtless, as it had lain for centuries, the mighty skeleton and its mighty armor.
As he stood looking down upon this grim reminder that another man of might had succumbed to the cruel powers of the desert, he was brought to startled attention by the report of a firearm, the sound of which came from the depths of the gorge to the south of him, and reverberated along the steep walls of the narrow rift.
Chapter XV
Mysterious Footprints
As the British plane piloted by Lieutenant Harold Percy Smith-Oldwick rose above the jungle wilderness where Bertha Kircher's life had so often been upon the point of extinction, and sped toward the east, the girl felt a sudden contraction of the muscles of her throat. She tried very hard to swallow something that was not there. It seemed strange to her that she should feel regret in leaving behind her such hideous perils, and yet it was plain to her that such was the fact, for she was also leaving behind something beside the dangers that had menaced her—a unique figure that had entered her life, and for which she felt an unaccountable attraction.
Before her in the pilot's seat sat an English officer and gentleman whom, she knew, loved her, and yet she dared to feel regret in his company at leaving the stamping ground of a wild beast!
Lieutenant Smith-Oldwick, on his part, was in the seventh heaven of elation. He was in possession again of his beloved ship, he was flying swiftly in the direction of his comrades and his duty, and with him was the woman he loved. The fly in the ointment, however, was the accusation Tarzan had made against this woman. He had said that she was a German, and a spy, and from the heights of bliss the English officer was occasionally plunged to the depths of despair in contemplation of the inevitable, were the ape-man's charges to prove true. He found himself torn between sentiments of love and honor. On the one hand he could not surrender the woman he loved to the certain fate that must be meted out to her if she were in truth an enemy spy, while on the other it would be equally impossible for him as an Englishman and an officer to give her aid or protection.
The young man contented himself therefore with repeated mental denials of her guilt. He tried to convince himself that Tarzan was mistaken, and when he conjured upon the screen of recollection the face of the girl behind him, he was doubly reassured that those lines of sweet femininity and character, those clear and honest eyes, could not belong to one of the hated alien race.
And so they sped toward the east, each wrapped in his own thoughts. Below them they saw the dense vegetation of the jungle give place to the scantier growth upon the hillside, and then before them there spread the wide expanse of arid wastelands marked by the deep scarring of the narrow gorges that long-gone rivers had cut there in some forgotten age.
Shortly after they passed the summit of the ridge which formed the boundary between the desert and the fertile country, Ska, the vulture, winging his way at a high altitude toward his aerie, caught sight of a strange new bird of gigantic proportions encroaching upon the preserves of his aerial domain. Whether with intent to give battle to the interloper or merely impelled by curiosity, Ska rose suddenly upward to meet the plane. Doubtless he misjudged the speed of the newcomer, but be that as it may, the tip of the propeller blade touched him and simultaneously many things happened. The lifeless body of Ska, torn and bleeding, dropped plummet-like toward the ground; a bit of splintered spruce drove backward to strike the pilot on the forehead; the plane shuddered and trembled and as Lieutenant Harold Percy Smith-Oldwick sank forward in momentary unconsciousness the ship dived headlong toward the earth.
Only for an instant was the pilot unconscious, but that instant almost proved their undoing. When he awoke to a realization of their peril it was also to discover that his motor had stalled. The plane had attained frightful momentum, and the ground seemed too close for him to hope to flatten out in time to make a safe landing. Directly beneath him was a deep rift in the plateau, a narrow gorge, the bottom of which appeared comparatively level and sand covered.
In the brief instant in which he must reach a decision, the safest plan seemed to attempt a landing in the gorge, and this he did, but not without considerable damage to the plane and a severe shaking-up for himself and his passenger.
Fortunately neither of them was injured but their condition seemed indeed a hopeless one. It was a grave question as to whether the man could repair his plane and continue the journey, and it seemed equally questionable as to their ability either to proceed on foot to the coast or retrace their way to the country they had just left. The man was confident that they could not hope to cross the desert country to the east in the face of thirst and hunger, while behind them in the valley of plenty lay almost equal danger in the form of carnivores and the warlike natives.
After the plane came to its sudden and disastrous stop, Smith-Oldwick turned quickly to see what the effect of the accident had been on the girl. He found her pale but smiling, and for several seconds the two sat looking at each other in silence.
"This is the end?" the girl asked.
The Englishman shook his head. "It is the end of the first leg, anyway," he replied.
"But you can't hope to make repairs here," she said dubiously.
"No," he said, "not if they amount to anything, but I may be able to patch it up. I will have to look her over a bit first. Let us hope there is nothing serious. It's a long, long way to the Tanga railway."
"We would not get far," said the girl, a slight note of hopelessness in her tone. "Entirely unarmed as we are, it would be little less than a miracle if we covered even a small fraction of the distance."
"But we are not unarmed," replied the man. "I have an extra pistol here, that the beggars didn't discover," and, removing the cover of a compartment, he drew forth an automatic.
Bertha Kircher leaned back in her seat and laughed aloud, a mirthless, half-hysterical laugh. "That popgun!" she exclaimed. "What earthly good would it do other than to infuriate any beast of prey you might happen to hit with it?"
Smith-Oldwick looked rather crestfallen. "But it is a weapon," he said. "You will have to admit that, and certainly I could kill a man with it."
"You could if you happened to hit him," said the girl, "or the thing didn't jam. Really, I haven't much faith in an automatic. I have used them myself."
"Oh, of course," he said ironically, "an express rifle would be better, for who knows but we might meet an elephant here in the desert."
The girl saw that he was hurt, and she was sorry, for she realized that there was nothing he would not do in her service or protection, and that it was through no fault of his that he was so illy armed. Doubtless, too, he realized as well as she the futility of his weapon, and that he had only called attention to it in the hope of reassuring her and lessening her anxiety.
"Forgive me," she said. "I did not mean to be nasty, but this accident is the proverbial last straw. It seems to me that I have borne all that I can. Though I was willing to give my life in the service of my country, I did not imagine that my death agonies would be so long drawn out, for I realize now that I have been dying for many weeks."
"What do you mean!" he exclaimed; "what do you mean by that! You are not dying. There is nothing the matter with you."
"Oh, not that," she said, "I did not mean that. What I mean is that at the moment the black sergeant, Usanga, and his renegade German native troops captured me and brought me inland, my death warrant was signed. Sometimes I have imagined that a reprieve has been granted. Sometimes I have hoped that I might be upon the verge of winning a full pardon, but really in the depths of my heart I have known that I should never live to regain civilization. I have done my bit for my country, and though it was not much I can at least go with the realization that it was the best I was able to offer. All that I can hope for now, all that I ask for, is a speedy fulfillment of the death sentence. I do not wish to linger any more to face constant terror and apprehension. Even physical torture would be preferable to