The captain’s orders were at once heard throughout the camp. The Zanzibar negroes sprang to their feet. Torches were lighted, and in answer to the distant signals Glen ordered rockets sent up in rapid succession and shots to be fired.
In less than a quarter of an hour the entire camp was on its way.
From a distance were heard shots responding to theirs. There was no longer any doubt but that some European caravan was for some unknown reason asking for help.
The captain and the doctor ran as fast as they possibly could, alternately hoping and fearing. Would they find the children or not? The doctor said to himself that if they did not find them they could at least search for their bodies in the dreadful heather-fields.
Half an hour later one of those ridges of which they had spoken shut off the view from the two friends. But they were now so near that they distinctly heard the tramping of horses. A few minutes more and a rider appeared on the top of a hillock; he held a large white object in front of him on the saddle.
“Hold the torches high!” commanded Glen.
At the same moment the rider brought his horse to a standstill within the circle of lights.
“Water! Water!”
“The children!” cried Dr. Clary.