"What are you doing, you boy?" he cried, threateningly.
But Dick did not care for Conway just then.
"Back fire! Back fire!" he shouted, and struck a match. It went out, but he quickly struck another, shielded it with one hand and touched the tiny flame to the grass. A flame equally tiny answered, but in an instant it leaped into the size and strength of a giant. The blaze rose higher than Dick's head, ran swiftly to right and left, and then roared away to the south, eating up everything in its path.
"Well done," said a voice at Dick's elbow. "It is the only thing that could save the train."
It was Bright Sun who spoke, and he had come so silently that
Dick did not see him until then.
Conway understood now, but without a word of approval he turned away and began to give orders, mixed with much swearing. He had a rough sort of efficiency, and spurred by his tongue and their own dreadful necessity, the men worked fast. The horses and mules, except three or four which had broken loose and were lost, were hitched to the wagons in half the usual time. There were no sluggards now.
Dick helped, and Albert, too, but to both it seemed that the work would never be done. The back fire was already a half mile away, gathering volume and speed as it went, but the other was coming on at an equal pace. Deer and antelope were darting past them, and the horses and mules were rearing in terror.
"Into the burned ground," shouted Conway, "an' keep the wagons close together!"
No need to urge the animals. They galloped southward over earth which was still hot and smoking, but they knew that something was behind them, far more terrible than sparks and smoke.
Dick made Albert jump into their own wagon, while he ran beside it. As he ran, he looked back, and saw a sight that might well fill the bravest soul with dread. A great black line, crested with tossing horns, was bearing down on them. The thunder of hoofs was like the roar of a hurricane, but behind the herd was a vast wall of light, which seemed to reach from the earth to the heavens and which gave forth sparks in myriads. Dick knew that they had been just in time.