The Indian had paused and was pointing with his gad to the south. Miles and miles away a great yellow cloud was gathering on the horizon, shutting out the sunlight and advancing with incredible speed. “Sandstorm” warned the Desert Rat, and spoke quickly to the mozo in Spanish. The latter at once turned the cavalcade of burros toward the hills, less than a mile distant; shouting and beating the heavily laden little beasts into a trot, the party scurried for the shelter of a rocky draw before the sandstorm should be upon them. They won. Throughout that day and night they camped up the draw, safe from the sand blast. Early next morning the wind had subsided and with the exception of some slight changes in topography due to the sandstorm, the desert was the same old silent pulseless mystery. The party resumed its journey. While the Easterner remained with the Indian, the Desert Rat circled out into the open, heading for a little backbone of quartz which rose out of the sand. He had not noticed this exposed ledge during their flight into the draw, and it was evident that the sandstorm had exposed it. Suddenly the mozo uttered a low “Whoa,” and the burros halted. Off in the sage and sand the Desert Rat was standing with upraised arm, as a signal for them to halt and wait for him. For nearly half an hour he circled around, stepping off distances and building monuments. Presently, apparently having completed his investigations, he beckoned the rest of his party to approach. “What's up?” demanded the Boston man the moment he and the Indian arrived. “I've just found Jake Revenner's lost claim. It's one of these marvelously rich ledges that have been discovered and located and lost and found and lost again, and cost scores of human lives. The sandstorms expose them and cover them up again, and after a storm--as now--the contour of the desert is so changed that a man, having staked his claim and gone out for grub, can't find the claim when he comes back. It was that way with the Nigger Ben placer. It's been found and lost half a dozen times. There was a claim discovered out here by a man named Jake Revenner, but he lost it and blew out his brains in sheer disgust. I have just stumbled across one of his monuments with his old location notices buried in a can. The late sandstorm uncovered the ledge, and it looks 'fat' enough for yours truly. _Mira?_” He tossed a sample to the Indian, and another of about the same size to the white man. The latter lifted it, examined it closely and sat down. He was quite excited. “By thunder!” he managed to say. “We're in luck.” A slight smile flickered across the face of the Desert Rat, but his voice was as calm and grave as usual. “Yes, it's rich--very rich. There's a comfortable fortune lying exposed on the surface. By the way, I think I shall pay you a liberal fee for your lost time and abandon that prospect I was taking you in to see. Compared with this, it's not worth considering.”