This sort of warfare would be carried on until there was a chance to rush the Yaquis, when the horses could be brought up for this purpose, or the charge made on foot. The Indians, exercising as great care for their steeds as had the white men, had also sent the ponies to the rear.

The place of the fight was about the middle of a small valley, closed in at either end by broken hills of rock, while rocks and great boulders were scattered over the floor of the vale, thus affording natural shelter for both sides. The rising ground at the rear of each party prevented the chance of a rapid retreat, and it was evident that the fight would go to a "finish."

Just how large the party of Yaquis was could not be told, but Captain
Marshall believed he had more men than were rallied to the support of
Paz, the notorious leader of the Mexicans.

"But I haven't seen Rosemary or Floyd," remarked Nort, as he wormed himself into a hollow place behind a rock, not far from Dick and Bud.

"Well, they are probably back in the rear. That's where they generally keep their captives," explained Dick. "If they see the fight going against them they'll send word back and some party will scoot out with our friends."

"Then we'll have the chasing to do all over again," ruefully observed
Nort.

"Oh, I guess Captain Marshall knows a trick or two," commented Bud. "Look, he's sending some of his men out now to try and get in the rear of the Yaquis."

Dick and Nort turned to see a detachment of the troopers making their way on hands and knees out among the rocks. Their object was what Bud had stated—to get in the rear of the Indians and not only attack them from that vantage point but also to prevent a retreat with the captives, in case Rosemary and Floyd were at that point.

And now the fight began in earnest.

With each party in a position advantageous to it the first few minutes of attack and defense were marked only by firing that accomplished nothing.