The man replied, addressing Cazi Moto, as is etiquette; and although Kingozi understood perfectly, he awaited his headman's repetition of the speech as though the Kavirondo had spoken a strange language.

"Fever, eh?" commented Kingozi aloud to himself, for the first time speaking his own tongue. "We'll soon see. Cazi Moto," he instructed in Swahili, "the medicine."

He thrust a clinical thermometer beneath the Kavirondo's tongue, glancing at a wrist watch as he did so.

"Cazi Moto," he said calmly after three minutes, "this man is a liar. He is not sick; he merely wants to get out of carrying a load."

The Kavirondo, his eyes rolling, shot forth a torrent of language.

"He says," Cazi Moto summarized all this, "that he was very sick, but that this medicine"--indicating the thermometer--"cured him."

"He lies again," said Kingozi. "This is not medicine, but magic that tells me when a man has uttered lies. This man must beware or he will get kiboko."

The Kavirondo scuttled away, and Kingozi gave his attention to the second patient. This man had an infected leg that required some minor surgery. When the job was over and Kingozi had washed his hands, he relighted his pipe and sat back in his chair with a sigh of content. The immediate foreground sank below his consciousness. He stared across the flickering fires at the velvet blackness; listened across the intimate, idle noise of the camp to the voice of the veldt.

For with the fall of darkness and the larger silence of darkness, the veldt awoke. Animals that had dozed through the hot hours and grazed through the cooler hours in somnolent content now quivered alert. There were runnings here and there, the stamp of hoofs, sharp snortings as taut nerves stretched. Zebras uttered the absurd small-dog barks peculiar to them; ostriches boomed; jackals yapped; unknown birds uttered hasty wild calls. Numerous hyenas, near and far away, moaned like lost souls. Kingozi listened as to the voice of an old acquaintance telling familiar things; the men chattered on, their whole attention within the globe of light from their fires.

But suddenly the noise stopped as though it had been cut by a knife. Total silence fell on the little encampment. The men, their various actions suspended, listened intently. From far away, apparently, a low, vibrating rumble stole out of the night's immensity. It rose and seemed to draw near, growing hollow and great, until the very ground seemed to tremble as though a heavy train were passing, or the lower notes of a great organ had been played in a little church. And then it died down, and receded to the great distance again, and was ended by three low, grunting coughs.