As he recalled the lion he half smiled. What a runt of a beast it had been indeed! Why, old Zor who hunted in the forest of the ape-people and dwelt in the caves upon the hither slopes of the Barren Hills would have snapped that fellow up in two bits. And Oo! A sneeze from Oo would have sent him scurrying into the Dark Swamp where Oo could not venture because of his great weight. It was an odd world in which Nu found himself. The country seemed almost barren to him, and yet he was in the heart of tropical Africa. The creatures seemed small and insignificant—yet the lion he had killed was one of the largest that Brown or Greystoke had ever seen—and he shivered, even in the heat of the equatorial sun.

How he longed for the world of his birth, with its mighty beasts, its gigantic vegetation, and its hot, humid atmosphere through which its great, blurred sun appeared grotesquely large and close at hand!

For a week they doctored Nu at the bungalow of the Greystokes. There were times when they despaired of his life, for the bullet wound that creased his temple clear to the skull had become infected; but at last he commenced to mend, and after that his recovery was rapid, for his constitution was that of untainted physical perfection.

The several searching parties returned one by one without a clue to the whereabouts of Victoria Custer. Barney knew that all was being done that could be done by his friends; but he clung tenaciously to the belief that the solution to the baffling mystery lay locked in the breast of the strange giant who was convalescing upon the cot that had been set up for him in Barney's own room, for such had been the young American's wish. Curtiss had been relegated to other apartments, and Barney stuck close to the bedside of his patient day and night.

His principal reasons for so doing were his wish to prevent the man's escape, and his desire to open some method of communication with the stranger as rapidly as possible. Already the wounded man had learned to make known his simpler wants in English, and the ease with which he mastered whatever Barney attempted to teach him assured the American of the early success of his venture in this direction.

Curtiss continued to view the stranger with suspicion and ill disguised hostility. He was positive that the man had murdered Victoria Custer, and failing to persuade the others that they should take justice into their own hands and execute the prisoner forthwith, he now insisted that he be taken to the nearest point at which civilization had established the machinery of law and turned over to the authorities.

Barney, on the other hand, was just as firm in his determination to wait until the man had gained a sufficient command of English to enable them to give him a fair hearing, and then be governed accordingly. He could not forget that there had existed some strange and inexplicable bond between this handsome giant and his sister, nor that unquestionably the man had saved her life when "old Raffles" had sprung upon her. Barney had loved, and lost because he had loved a girl beyond his reach and so his sympathies went out to this man who, he was confident, loved his sister. Uncanny as her dreams had been, Barney was forced to admit that there had been more to them than either Victoria or he had imagined, and now he felt that for Victoria's sake he should champion her dream-man in her absence.

One of the first things that Barney tried to impress upon the man was that he was a prisoner, and lest he should escape by night when Barney slept Greystoke set Terkoz to watch over him. But Nu did not seem inclined to wish to escape. His one desire apparently was to master the strange tongue of his captors. For two weeks after he was able to quit his bed he devoted his time to learning English. He had the freedom of the ranch, coming and going as he pleased, but his weapons were kept from him, hidden in Lord Greystoke's study, and Barney, sometimes with others of the household, always accompanied him.

Nu was waiting for Nat-ul. He was sure that she would come back again to this cave that his new acquaintances called a bungalow. Barney was waiting for the man to mention his sister. One day Curtiss came upon Nu sitting upon the veranda. Terkoz lay at his feet. Nu was clothed in khaki—an old suit of Greystoke's being the largest that could be found upon the place, and that was none too large. As Curtiss approached, the wolfhound turned his wicked little eyes upon him, without moving his head from where it lay stretched upon his forepaws, and growled. Nu extended a booted foot across the beast's neck to hold him in check.

The hound's show of hostility angered Curtiss. He hated the brute, and he hated Nu as cordially—just why, he did not know, for it seemed that his hatred of the stranger was a thing apart from his righteous anger in his belief that the man had guilty knowledge of the fate of Victoria Custer. He halted in front of the caveman.