The herd had stampeded.

To Terry there came then, for the first time in her life, the sense of utter helplessness and hopelessness. At least the others were doing something, no matter how fruitless it might prove, while she was doing nothing. Steve was riding full-tilt to meet the herd. She saw him and his men, strange figures in the uncertain light, looming big against the dawn sky and the fires' glow. They were shouting, waving their arms. Then, going down over a swell of earth they were lost to her.

Again and again there came to her the sound of shots and men's voices shouting, cursing, yelling wild commands, a rising clamor meant to divert the blind rush of frightened beasts, to turn them to right and left so that they might scramble out of the valley before they came to the lower end where Terry stood—where was the yawning chasm down into which many a great, terror-filled body was doomed to plunge to annihilation unless the way were found to swing the flood of fear aside in time.

Barbee and Bandy Oliver and the other boys were obeying Steve's commands, doing all that they could, seeking frantically to split the herd and divert it and so save it. But all of the time the wind strengthened, the fires rose higher and higher against the sky, the sparks soared to rarer altitudes, were flung further out, new fires were catching everywhere.

The tall, dry grass was burning in a hundred places. The herd, sweeping on, was snorting its terror, yielding absolutely to the blind instinct of flight. And steadily the thunderous murmuring sound from the hoof-smitten earth rose and swelled. Closer and closer they came. Terry could distinguish Steve's voice.

In her hand were the matches he had given her in order that she might read again his grandfather's letter. A little gasp broke from her lips. The letter fluttered from her hand, no longer of the slightest importance and on the wings of the wind went outward and then down into the chasm. She ran forward swiftly, a hundred yards from the precipice's edge. She struck a match, stopped briefly, set it to the grass.

The flame caught, leaping up avidly, licking hungrily for more fuel, a demon for desire, newly born, yearning to rage a giant of destruction. The girl snatched a handful of the burning grass and ran with it; a little further forward, then to the side, scattering burning wisps as she went.

Everywhere that a spark fell it made of itself a blaze. Already, in twenty seconds, she had created a broad belt of flame that rose swiftly and spread to right and left.

About her everywhere the air grew stifling, hot, filled with smoke and ash and cinder so that as she ran her lungs began to hurt her. But she kept on. Nearer were the herds coming; Steve and his men had not been able to stem the mad torrent; not yet had they succeeded in turning it.

And in another handful of minutes the black, tight-jammed mass of big panting bodies would be hurtling out into space. Unless she made her fire extend from side to side in a wall of leaping, roaring, swirling menace that would do what no men and horses could accomplish.