The outcome of it was that von Horn finally decided to make an attempt to follow the trail of the creature that the woman had seen, and with this plan in view persuaded Muda Saffir to arrange with the chief of the long-house at which they then were to furnish him with trackers and an escort of warriors, promising them some splendid heads should they be successful in overhauling Bulan and his pack.
Professor Maxon was too ill to accompany the expedition, and von Horn set out alone with his Dyak allies. For a time after they departed Sing Lee fretted and fidgeted upon the verandah of the long-house. He wholly distrusted von Horn, and from motives of his own finally decided to follow him. The trail of the party was plainly discernible, and the Chinaman had no difficulty in following them, so that they had gone no great way before he came within hearing distance of them. Always just far enough behind to be out of sight, he kept pace with the little column as it marched through the torrid heat of the morning, until a little after noon he was startled by the sudden cry of a woman in distress, and the answering shout of a man.
The voices came from a point in the jungle a little to his right and behind him, and without waiting for the column to return, or even to ascertain if they had heard the cries, Sing ran rapidly in the direction of the alarm. For a time he saw nothing, but was guided by the snapping of twigs and the rustling of bushes ahead, where the authors of the commotion were evidently moving swiftly through the jungle.
Presently a strange sight burst upon his astonished vision. It was the hideous Number Three in mad pursuit of a female ourang outang, and an instant later he saw Number Twelve and Number Ten in battle with two males, while beyond he heard the voice of a man shouting encouragement to some one as he dashed through the jungle. It was in this last event that Sing's interest centered, for he was sure that he recognized the voice as that of Bulan, while the first cry for help which he had heard had been in a woman's voice, and Sing knew that its author could be none other than Virginia Maxon.
Those whom he pursued were moving rapidly through the jungle which was now becoming more and more open, but the Chinaman was no mean runner, and it was not long before he drew within sight of the object of his pursuit.
His first glimpse was of Bulan, running swiftly between two huge bull ourang outangs that snapped and tore at him as he bounded forward cutting and slashing at his foes with his heavy whip. Just in front of the trio was another bull bearing in his arms the unconscious form of Virginia Maxon who had fainted at the first response to her cry for help. Sing was armed with a heavy revolver but he dared not attempt to use it for fear that he might wound either Bulan or the girl, and so he was forced to remain but a passive spectator of what ensued.
Bulan, notwithstanding the running battle the two bulls were forcing upon him, was gaining steadily upon the fleeing ourang outang that was handicapped by the weight of the fair captive he bore in his huge, hairy arms. As they came into a natural clearing in the jungle the fleeing bull glanced back to see his pursuer almost upon him, and with an angry roar turned to meet the charge.
In another instant Bulan and the three bulls were rolling and tumbling about the ground, a mass of flying fur and blood from which rose fierce and angry roars and growls, while Virginia Maxon lay quietly upon the sward where her captor had dropped her.
Sing was about to rush forward and pick her up, when he saw von Horn and his Dyaks leap into the clearing, to which they had been guided by the sounds of the chase and the encounter. The doctor halted at the sight that met his eyes—the prostrate form of the girl and the man battling with three huge bulls.
Then he gathered up Virginia Maxon, and with a sign to his Dyaks, who were thoroughly frightened at the mere sight of the white giant of whom they had heard such terrible stories, turned and hastened back in the direction from which they had come, leaving the man to what seemed must be a speedy and horrible death.
Sing Lee was astounded at the perfidy of the act. To Bulan alone was due the entire credit of having rescued Professor Maxon's daughter, and yet in the very presence of his self-sacrificing loyalty and devotion von Horn had deserted him without making the least attempt to aid him. But the wrinkled old Chinaman was made of different metal, and had started forward to assist Bulan when a heavy hand suddenly fell upon his shoulder. Looking around he saw the hideous face of Number Ten snarling into his. The bloodshot eyes of the monster were flaming with rage. He had been torn and chewed by the bull with which he had fought, and though he had finally overcome and killed the beast, a female which he had pursued had eluded him. In a frenzy of passion and blood lust aroused by his wounds, disappointment and the taste of warm blood which still smeared his lips and face, he had been seeking the female when he suddenly stumbled upon the hapless Sing.
With a roar he grasped the Chinaman as though to break him in two, but Sing was not at all inclined to give up his life without a struggle, and Number Ten was quick to learn that no mean muscles moved beneath that wrinkled, yellow hide.
There could, however, have been but one outcome to the unequal struggle had Sing not been armed with a revolver, though it was several seconds before he could bring it into play upon the great thing that shook and tossed him about as though he had been a rat in the mouth of a terrier. But suddenly there was the sharp report of a firearm, and another of Professor Maxon's unhappy experiments sank back into the nothingness from which he had conjured it.
Then Sing turned his attention to Bulan and his three savage assailants, but, except for the dead body of a bull ourang outang upon the spot where he had last seen the four struggling, there was no sign either of the white man or his antagonists; nor, though he listened attentively, could he catch the slightest sound within the jungle other than the rustling of the leaves and the raucous cries of the brilliant birds that flitted among the gorgeous blooms about him.
For half an hour he searched in every direction, but finally, fearing that he might become lost in the mazes of the unfamiliar forest he reluctantly turned his face toward the river and the long-house that sheltered his party.
Here he found Professor Maxon much improved—the safe return of Virginia having acted as a tonic upon him. The girl and her father sat with von Horn upon the verandah of the long-house as Sing clambered up the notched log that led to it from the ground. At sight of Sing's wrinkled old face Virginia Maxon sprang to her feet and ran forward to greet him, for she had been very fond of the shrewd and kindly Chinaman of whom she had seen so much during the dreary months of her imprisonment within the campong.
"Oh, Sing," she cried, "where have you been? We were all so worried to think that no sooner was one of us rescued than another became lost."
"Sing takee walk, Linee, las all," said the grinning Chinaman. "Velly glad see Linee black 'gain," and that was all that Sing Lee had to say of the adventures through which he had just passed, and the strange sights that he had seen.
Again and again the girl and von Horn narrated the stirring scenes of the day, the latter being compelled to repeat all that had transpired from the moment that he had heard Virginia 's cry, though it was apparent that he only consented to speak of his part in her rescue under the most considerable urging. Very pretty modesty, thought Sing when he had heard the doctor's version of the affair.
"You see," said von Horn, "when I reached the spot Number Three, the brute that you thought was an ape, had just turned you over to Number Thirteen, or, as the natives now call him, Bulan. You were then in a faint, and when I attacked Bulan he dropped you to defend himself. I had expected a bitter fight from him after the wild tales the natives have been telling of his ferocity, but it was soon evident that he is an arrant coward, for I did not even have to fire my revolver—a few thumps with the butt of it upon his brainless skull sent him howling into the jungle with his pack at his heels."