Cook gave the two short whistles agreed upon to recall the other men on guard, and then returned with Mr. Hardy to the rest of the party. Then Mr. Hardy roused all his companions. Every man leaped up, rifle in hand, believing that the Indians were approaching.
"We must be up and doing," Mr. Hardy said cheerfully; "the Indians have fired the pampas."
There was a thrill of apprehension in the bosom of many present, who had heard terrible accounts of prairie fires, but this speedily subsided at the calm manner of Mr. Hardy.
"The fire," he said, "may be ten miles away yet. I should say that it was, but it is difficult to judge, for this grass does not flame very high, and the smoke drifts between it and us. The wind, fortunately, is light, but it will be here in little over half an hour. Now, let the four Gauchos attend to the horses, to see they do not stampede. The rest form a line a couple of yards apart, and pull up the grass by the roots, throwing it behind them, so as to leave the ground clear. The wider we can make it the better."
All fell to work with hearty zeal. Looking over their shoulders, the sky now appeared on fire. Flickering tongues of flame seemed to struggle upward. There was an occasional sound of feet, as herds of deer flew by before the danger.
"How far will it go, papa, do you think?" Hubert asked his father, next to whom he was at work.
"I should say that it would most likely stop at the stream where we halted to-day, Hubert. The ground was wet and boggy for some distance on the other side."
The horses were now getting very restive, and there was a momentary pause from work to wrap ponchos round their heads, so as to prevent their seeing the glare.
The fire could not have been more than three miles distant, when the space cleared was as wide as Mr. Hardy deemed necessary for safety. A regular noise, something between a hiss and a roar, was plainly audible; and when the wind lifted the smoke the flames could be seen running along in an unbroken wall of fire. Birds flew past overhead with terrified cries, and a close, hot smell of burning was very plainly distinguishable.
Starting about halfway along the side of the cleared piece of ground, Mr. Hardy set the dry grass alight. For a moment or two it burned slowly, and then, fanned by the wind, It gained force, and spread in a semicircle of flame.