the winding river toward the north a few miles where its course turned to the west and then on toward its source across a wooded plateau and up into the foothills and the mountains. Upon the other side of the range he would search for a stream running downward toward the west coast, and thus following the rivers he would be sure of game and water in plenty.
But he did not go far. A dozen steps, perhaps, and he came to a sudden stop. "He is an Englishman," he muttered, "and the other is a woman. They can never reach the settlements without my help. I could not kill her with my own hands when I tried, and if I let them go on alone, I will have killed her just as surely as though I had run my knife into her heart. No," and again he shook his head. "Tarzan of the Apes is a fool and a weak, old woman," and he turned back toward the south.
Manu, the monkey, had seen the two Tarmangani pass two days before. Chattering and scolding, he told Tarzan all about it. They had gone in the direction of the village of the Gomangani, that much had Manu seen with his own eyes, so the ape-man swung on through the jungle in a southerly direction and though with no concentrated effort to follow the spoor of those he trailed, he passed numerous evidences that they had gone this way—faint suggestions of their scent spoor clung lightly to leaf or branch or bole that one or the other had touched, or in the earth of the trail their feet had trod, and where the way wound through the gloomy depth of dank forest, the impress of their shoes still showed occasionally in the damp mass of decaying vegetation that floored the way.
An inexplicable urge spurred Tarzan to increasing, speed. The same still, small voice that chided him for having neglected them seemed constantly whispering that they were in dire need of him now. Tarzan's conscience was troubling him, which accounted for the fact that he compared himself to a weak, old woman, for the ape-man, reared in savagery and inured to hardships and cruelty, disliked to admit any of the gentler traits that in reality were his birthright.
The trail made a detour to the east of the village of the Wamabos, and then returned to the wide elephant path nearer to the river, where it continued in a southerly direction for several miles. At last there came to the ears of the ape-man a peculiar whirring, throbbing sound. For an instant he paused, listening intently, "An aeroplane!" he muttered, and hastened forward at greatly increased speed.
When Tarzan of the Apes finally reached the edge of the meadowland where Smith-Oldwick's plane had landed, he took in the entire scene in one quick glance and grasped the situation, although he could scarce give credence to the things he saw. Bound and helpless, the English officer lay upon the ground at one side of the meadow, while around him stood a number of the black deserters from the German command. Tarzan had seen these men before and knew who they were. Coming toward him down the meadow was an aeroplane piloted by the black Usanga and in the seat behind the pilot was the white girl, Bertha Kircher. How it befell that the ignorant savage could operate the plane, Tarzan could not guess nor had he time in which to speculate upon the subject. His knowledge of Usanga, together with the position of the white man, told him that the black sergeant was attempting to carry off the white girl. Why he should be doing this when he had her in his power and had also captured and secured the only creature in the jungle who might wish to defend her in so far as the black could know, Tarzan could not guess, for he knew nothing of Usanga's twenty-four dream wives nor of the black's fear of the horrid temper of Naratu, his present mate. He did not know, then, that Usanga had determined to fly away with the white girl never to return, and to put so great a distance between himself and Naratu that the latter never could find him again; but it was this very thing that was in the black's mind although not even his own warriors guessed it. He had told them that he would take the captive to a sultan of the north and there obtain a great price for her and that when he returned they should have some of the spoils.
These things Tarzan did not know. All he knew was what he saw—a Negro attempting to fly away with a white girl. Already the machine was slowly leaving the ground. In a moment more it would rise swiftly out of reach. At first Tarzan thought of fitting an arrow to his bow and slaying Usanga, but as quickly he abandoned the idea because he knew that the moment the pilot was slain the machine, running wild, would dash the girl to death among the trees.
There was but one way in which he might hope to succor her—a way which if it failed must send him to instant death and yet he did not hesitate in an attempt to put it into execution.
Usanga did not see him, being too intent upon the unaccustomed duties of a pilot, but the blacks across the meadow saw him and they ran forward with loud and savage cries and menacing rifles to intercept him. They saw a giant white man leap from the branches of a tree to the turf and race rapidly toward the plane. They saw him take a long grass rope from about his shoulders as he ran. They saw the noose swinging in an undulating circle above his head. They saw the white girl in the machine glance down and discover him.
Twenty feet above the running ape-man soared the huge plane. The open noose shot up to meet it, and the girl, half guessing the ape-man's intentions, reached out and caught the noose and, bracing herself, clung tightly to it with both hands. Simultaneously Tarzan was dragged from his feet and the plane lurched sideways in response to the new strain. Usanga clutched wildly at the control and the machine shot upward at a steep angle. Dangling at the end of the rope the ape-man swung pendulum-like in space. The Englishman, lying bound upon the ground, had been a witness of all these happenings. His heart stood still as he saw Tarzan's body hurtling through the air toward the tree tops among which it seemed he must inevitably crash; but the plane was rising rapidly, so that the beast-man cleared the top-most branches. Then slowly, hand over hand, he climbed toward the fuselage. The girl, clinging desperately to the noose, strained every muscle to hold the great weight dangling at the lower end of the rope.
Usanga, all unconscious of what was going on behind him, drove the plane higher and higher into the air.
Tarzan glanced downward. Below him the tree tops and the river passed rapidly to the rear and only a slender grass rope and the muscles of a frail girl stood between him and the death yawning there thousands of feet below.
It seemed to Bertha Kircher that the fingers of her hands were dead. The numbness was running up her arms to her elbows. How much longer she could cling to the straining strands she could not guess. It seemed to her that those lifeless fingers must relax at any instant and then, when she had about given up hope, she saw a strong brown hand reach up and grasp the side of the fuselage. Instantly the weight upon the rope was removed and a moment later Tarzan of the Apes raised his body above the side and threw a leg over the edge. He glanced forward at Usanga and then, placing his mouth close to the girl's ear he cried: "Have you ever piloted a plane?" The girl nodded a quick affirmative.
"Have you the courage to climb up there beside the black and seize the control while I take care of him?"
The girl looked toward Usanga and shuddered. "Yes," she replied, "but my feet are bound."
Tarzan drew his hunting knife from its sheath and reaching down, severed the thongs that bound her ankles. Then the girl unsnapped the strap that held her to her seat. With one hand Tarzan grasped the girl's arm and steadied her as the two crawled slowly across the few feet which intervened between the two seats. A single slight tip of the plane would have cast them both into eternity. Tarzan realized that only through a miracle of chance could they reach Usanga and effect the change in pilots and yet he knew that that chance must be taken, for in the brief moments since he had first seen the plane, he had realized that the black was almost without experience as a pilot and that death surely awaited them in any event should the black sergeant remain at the control.
The first intimation Usanga had that all was not well with him was when the girl slipped suddenly to his side and grasped the control and at the same instant steel-like fingers seized his throat. A brown hand shot down with a keen blade and severed the strap about his waist and giant muscles lifted him bodily from his seat. Usanga clawed the air and shrieked but he was helpless as a babe. Far below the watchers in the meadow could see the aeroplane careening in the sky, for with the change of control it had taken a sudden dive. They saw it right itself and, turning in a short circle, return in their direction, but it was so far above them and the light of the sun so strong that they could see nothing of what was going on within the fuselage; but presently Lieutenant Smith-Oldwick gave a gasp of dismay as he saw a human body plunge downward from the plane. Turning and twisting