“Maybe, they missed it,” he added hopefully to Bob. “You see we lie to one side and out of sight of the village.”

Wimba was rapidly interrogating the chief who, with a word or two, dismissed him, then turned to face the plain and using his arms as a semaphore went through a set of gestures which quite obviously were some kind of signal.

That they were so understood by the warriors was apparent, for the latter leaped forward in a tearing run that ate up the distance.

In the meantime, Frank, all unaware as yet of what was going forward, cranked away for dear life, delighted with the marvellous picture he was obtaining, while the others questioned Wimba as to the chief’s reply.

“Him say no know,” replied Wimba. “Raid come from other side. Mebbe your camp, baas, not found.”

“Anyhow, we left a half dozen bearers with guns on guard,” said Bob. “They’d be able to stand off these savages armed only with bows and arrows.”

“Yes, if they didn’t get scared and run,” said Jack. “Look at those fellows come. They’ll be here in a minute. What’s the chief going to do?” Frank for the first time withdrew his head from the camera hood.

“Say, you chaps,” he cried delightedly. “You ought to see this. It’ll make one great picture.” He was about to place his eyes again to the machine and resume grinding, but Bob gripped him by an arm, and in a few words apprised him of what was up.

To within twenty-feet of the chief, who had advanced several paces in front of the boys, charged his warriors at a furious rate. Then they suddenly halted, the whole mass, as if turned to stone. Execution of the maneuver in such dramatic fashion left the watching boys breathless. For a moment they forgot their own worries in admiration of the Kikuyus, and Frank mourned loudly because Bob had restrained him from resuming camera operations in time to get that last picture.

The black warriors gazed expectantly at their chief, and the latter addressed them in a loud voice. When he had ceased, angry cries went up, and then, like a wave splitting on a rock, the warriors without more ado, parted into two divisions and, flowing on either side of the chief and the dumbfounded boys, charged over the hill toward the village.