Lafond's knowledge of the topography of the place was excellent. He had visited it several times. He had watched the doctor, step by step, throughout a long day of geological searching. He knew Jim Buckley's dwelling, where he worked, what hours he kept, and just how late he sat up at night. Innumerable times he had viewed the doctor, Prue, and the scout through the buck-horn sights of his long rifle; yet he had never been even tempted to pull the trigger. Why? Because he was a Latin, and so theatrical effects were dear to him; because he was an Indian, and so revenge with him seemed to lie not so much in the mere infliction of injury as in the victim's realization that he was being come up with. Lafond not only wanted the doctor and his companions to be killed, but he wanted them to know why they were killed, and by whom. It was finer to be able thus to do the thing with all the stage settings. The dramatic instinct was part of the barbaric quality of his nature, like a love for red.

So Lafond had let slip innumerable opportunities of picking off his victims single-handed, merely to gain the local knowledge necessary to a final coup de théâtre. Consequently, he knew where the cabin was situated, and quickly scouted the state of affairs. The coast was clear. He gave the required signal; the savages silently approached on foot, and they entered the little house together.

Now at this time of year, in the Black Hills, there occurs a daily meteorological phenomenon of a rather peculiar character. The hot air from the prairies sweeps over from the Missouri River, crossing a number of lesser streams in its passage, until it strikes the slope of the hills. There it is deflected upward, gradually becoming colder as the elevation rises, until, at the barrier of Harney, it gathers in rain clouds. These are at first mere wisps of down, streaming in ragged ribbons from the peak; but with incredible rapidity they gain in density and extent, until they spread over a considerable area of the surrounding country. Then they empty themselves in a terrific deluge of water and hail, accompanied by thunderclaps so reverberant that they seem to arise from the rending of the hills themselves. After this short crisis, the dismembered clouds float out over the prairie and are dissipated in the hot air, even before they reach the first white turrets of the Bad Lands.

So rapidly does the storm gather and break, that there is but a short half hour between the morning and the afternoon clearness of the skies. To those who have never experienced this phenomenon, it is startling in the extreme; to those who have, it is a matter of seeking temporary shelter until the disturbance blows over. In any case, the first indications are but scant warning.

By the time the little band of Indians had reached the doctor's cabin, the first wisps of cloud were clinging to Harney. While they were in the house, the blackness gathered and loomed and darkened until the sun was obscured and the western hills lost themselves in rain.

The doctor was in the hills. Prue was making the bed in the little bedroom, and little Miss Prue was asleep on a rug in one corner of the larger apartment. The savages stole in with noiseless, moccasined feet behind the stooping woman. Lafond, forgetting in his excitement everything but the lust of killing, stabbed her deeply twice in the broad of the back. She fell forward on the bed without a murmur, and the murderer, seizing the knob of her hair, circled her brow with his knife's edge, and ripped loose the scalp. Then they all glided back into the other room.

Three of the savages took from the wood box near the crude fireplace some of the dried kindling with which Jim Buckley had supplied the family, and began to build a little wigwam-shaped pyramid against the side of the wall. Others moved about furtively, prying here and there for possible plunder. They preserved absolute silence, for the superstitious terror of the place was working on them, and they had begun to experience that panic-like tremor which seems to create an invisible clutch ready to seize from behind.

Even the encouraging presence of Rain-in-the-Face was not potent enough to prevent this. Out on the plains the personality of the man had loomed large, but here the legend was greater than he. The warriors felt the imminence of the frowning, brooding manitou of Harney; they almost heard the moaned syllables of the Soulless Ones' complaint. Their movements were those of timid mice, advancing a little, hesitating much, ready to flee in panic.

Not so Lafond. He strode roughly over to the corner where the child lay. In his mind, with new vividness, burned that old picture of his humiliation. He began to realize, now that the patient repression of his hate was over, how potent it had been. Alfred and Billy Knapp were out of his reach for the present, but here were the others ready to his hand. He seized little Prue by the hair of her head.

The child, thus suddenly awakened, screamed violently, shriek upon shriek, as her terror became more fully conscious of the savage and his bloody knife. About the room the warriors paused nervously. Accustomed enough to screams of this sort, they were now dominated by superstition and were thrown off their wonted balance.