The scene was ever changing. The baboons rushed away in a body and a herd of some small deer came to the pool. Then a slinking leopard drove these timid creatures away. In his turn the fierce cat gave way to a troop of howling hyenas. Though these scavengers of the jungle singly, or even in pairs, would never dare to molest a leopard, a body of them will become so bold that they will sometimes even attack a lion--and kill it, too. Yard after yard of the film was reeled off, making a series of rare pictures. As yet the position of the boys had not been discovered, for they were well screened and only occasionally did some beasts hear the clicking of the camera and look suspiciously in that direction. “I guess we won’t have to use the guns after all,” remarked Mr. Piper. “It doesn’t look so,” agreed the sergeant. They had hardly spoken, however, before there came that same peculiar, whistling grunt that before had attracted their attention to the water hole. “Rhinos!” exclaimed the sergeant, getting his rifle in readiness. From the underbrush, at the far side of the hole, a big body emerged, and a moment later a huge rhinoceros stepped into the glare of the light. The calcium seemed to frighten it for a moment, and then, concluding that, as no one was in sight, everything must be all right, the great beast came on. It had hardly begun to drink, however, before there was another of the queer grunts, and a second rhinoceros rushed out toward the water. The second one did not seem to see the first one until almost at its side, and then the first one, raising its head, noticed the other. With lowered heads, the two great horns on each one prominent, they stood for a moment motionless, and the sergeant whispered: “They’re going to fight!” The words were scarcely out of his mouth before there was a rush and the two came together with an impact that could be heard for some distance. The magnesium light made everything almost as clear as day, and Blake kept on taking pictures. The fight did not last long. The first rhinoceros, with a quick, savage motion, thrust its horn into the other’s side, inflicting a grievous wound. The injured animal, with a grunt of pain and dismay, backed off, and, after standing motionless a moment, turned and walked slowly off, staggering. “He’s badly hurt,” whispered Blake. “I should say so,” agreed his chum. “He can’t last long. But what pictures we’re getting!” The victorious rhinoceros walked back to the pool, seemingly satisfied. Blake was getting a series of pictures, somewhat different now, for in the background were several waterbucks coming on to the pool. Suddenly the film in the camera broke. “Pshaw!” exclaimed Blake aloud, before he thought. “Now we’ll lose some good scenes while I fix that.” “We ought to have brought two cameras,” said Joe. “Quiet!” hissed the sergeant. “He’ll hear you.”