In an old tunnel behind their tent they set a heavy gate, and behind it they stored their precious powder. Then came the portable forge and the blacksmith-shop, just inside the mouth of the cave, and the tent backed up against it for protection. For if there is any one thing, next to horses, that the rebels are wont to steal, it is giant powder to blow up culverts with, or to lay on the counters of timorous country merchants and frighten them into making contributions.

As for their horses, Bud kept them belled and hobbled, close to the house, and no one ever saw him without his gun. In the morning, when he got up, he took it from under his pillow and hung it on his belt, and there it stayed until bedtime.

He also kept a sharp watch on the trail, above and below, and what few men did pass through were conscious of his eye. Therefore it was all the more surprising when, one day, looking up suddenly from heaving at a great rock, he saw the big Yaqui soldier, Amigo, gazing down at him from the cut bank.

Yes, it was the same man, yet with a difference—his rifle and cartridge-belts were absent and his clothes were torn by the brush. But the same good-natured, competent smile was there, and after a few words with Bud he leaped nimbly down the bank and laid hold upon the rock. They pulled together, and the boulder that had balked Bud's gang of Mexicans moved easily for the two of them.

Then Amigo seized a crowbar and slipped it into a cranny and showed them a few things about moving rocks. For half an hour or more he worked along, seemingly bent on displaying his skill, then he sat down on the bank and watched the Mexicans with tolerant, half-amused eyes.

If he was hungry he showed it only by the cigarettes he smoked, and Hooker, studying upon the chances he would take by hiring a deserter, let him wait until he came to a decision.

"Oyez, Amigo," he hailed at last and, rubbing his hand around on his stomach he smiled questioningly, whereat the Yaqui nodded his head avidly.

"Stowano!" said Hooker. "Ven." And he left his Mexicans to dawdle as they would while he led the Indian to camp. There he showed him the coffeepot and the kettle of beans by the fire, set out a slab of Dutch-oven bread and a sack of jerked beef, some stewed fruit and a can of sirup, and left him to do his worst.

In the course of half an hour or so he came back and found the Yaqui sopping up sirup with the last of the bread and humming a little tune. So they sat down and smoked a cigarette and came to the business at hand.

"Where you go?" inquired Bud; but Amigo only shrugged enigmatically.