TWO:Someway it had not occurred to him to be any more angry with Cairness than he had been with her. The most he felt was resentful jealousy. There was nothing more underhand about the man than there was about Felipa. Sending the note by the prospectors had not been underhand. He understood that it had been done only that it might make no trouble for her, and give himself no needless pain. Cairness would have been willing to admit to his face that he loved Felipa. That letter must have been written in his own camp.On the next day they were in the flat, nearing the post. There was a dust storm. Earlier in the morning the air had grown suddenly more dry, more close and lifeless than ever, suffocating, and a yellow cloud had come in the western sky. Then a hot wind began to blow the horses' manes and tails, to snarl through the greasewood bushes, and to snap the loose ends of the men's handkerchiefs sharply. The cloud had thinned and spread, high up in the sky, and the light had become almost that of a sullen evening. Black bits floated and whirled high overhead, and birds beat about in the gale. Gradually the gale and the dust had dropped nearer to the earth, a sand mist had gone into every pore and choked and parched. And now the tepid, thick wind was moaning across the plain, meeting no point of resistance anywhere.