After half an hour of skillful maneuvering, the Englishman rose rapidly to a considerable altitude, and then, suddenly, without warning, he looped and flew with the plane inverted for a few seconds.
"I said I'd give this beggar the lesson of his life," he mur-mured as he heard, even above the whir of the propeller, the shriek of the terrified Negro. A moment later Smith-Oldwick had righted the machine and was dropping rapidly toward the earth. He circled slowly a few times above the meadow until he had assured himself that Bertha Kircher was there and apparently unharmed, then he dropped gently to the ground so that the machine came to a stop a short distance from where the girl and the warriors awaited them.
It was a trembling and ashen-hued Usanga who tumbled out of the fuselage, for his nerves were still on edge as a result of the harrowing experience of the loop, yet with terra firma once more under foot, he quickly regained his composure.
Strutting about with great show and braggadocio, he strove to impress his followers with the mere nothingness of so trivial a feat as flying birdlike thousands of yards above the jungle, though it was long until he had thoroughly convinced himself by the force of autosuggestion that he had enjoyed every instant of the flight and was already far advanced in the art of aviation.
So jealous was the black of his new-found toy that he would not return to the village of Numabo, but insisted on making camp close beside the plane, lest in some inconceivable fashion it should be stolen from him. For two days they camped there, and constantly during daylight hours Usanga compelled the Englishman to instruct him in the art of flying.
Smith-Oldwick, in recalling the long months of arduous training he had undergone himself before he had been con-sidered sufficiently adept to be considered a finished flier, smiled at the conceit of the ignorant African who was already demanding that he be permitted to make a flight alone.
"If it was not for losing the machine," the Englishman ex-plained to the girl, "I'd let the bounder take it up and break his fool neck as he would do inside of two minutes."However, he finally persuaded Usanga to bide his time for a few more days of instruction, but in the suspicious mind of the Negro there was a growing conviction that the white man's advice was prompted by some ulterior motive; that it was in the hope of escaping with the machine himself by night that he refused to admit that Usanga was entirely capable of handling it alone and therefore in no further need of help or instruction, and so in the mind of the black there formed a determination to outwit the white man. The lure of the twenty-four seductive wives proved in itself a sufficient incentive and there, too, was added his desire for the white girl whom he had long since determined to possess.
It was with these thoughts in mind that Usanga lay down to sleep in the evening of the second day. Constantly, however, the thought of Naratu and her temper arose to take the keen edge from his pleasant imaginings. If he could but rid himself of her! The thought having taken form persisted, but always it was more than outweighed by the fact that the black sergeant was actually afraid of his woman, so much afraid of her in fact that he would not have dared to attempt to put her out of the way unless he could do so secretly while she slept. How-ever, as one plan after another was conjured by the strength of his desires, he at last hit upon one which came to him almost with the force of a blow and brought him sitting upright among his sleeping companions.
When morning dawned Usanga could scarce wait for an opportunity to put his scheme into execution, and the moment that he had eaten, he called several of his warriors aside and talked with them for some moments.
The Englishman, who usually kept an eye upon his black captor, saw now that the latter was explaining something in detail to his warriors, and from his gestures and his manner it was apparent that he was persuading them to some new plan as well as giving them instructions as to what they were to do. Several times, too, he saw the eyes of the Negroes turned upon him and once they flashed simultaneously toward the white girl.
Everything about the occurrence, which in itself seemed trivial enough, aroused in the mind of the Englishman a well-defined apprehension that something was afoot that boded ill for him and for the girl. He could not free himself of the idea and so he kept a still closer watch over the black although, as he was forced to admit to himself, he was quite powerless to avert any fate that lay in store for them. Even the spear that he had had when captured had been taken away from him, so that now he was unarmed and absolutely at the mercy of the black sergeant and his followers.
