In the country where he was going there was no grass for those horses, no browse that even an Indian pony could travel on; and if they wanted to keep up with him and his grain-fed mules they would have to use quirt and spurs. And the man who feeds his horse on buckskin alone is due to walk back to camp. So reasoned John C. Calhoun from his cow-puncher days, when he had tried out the weaknesses of horseflesh; and as he returned to the grassy swale where his mules were hid he looked them over proudly. His riding mule, Old Walker, was still in his prime, a big-bellied animal with the long reach in its fore-shoulders which made it by nature a fast walker; and his pack-mule, equally round-bellied to store away food, was short-bodied as well so that he bore his pack easily without any tendency to give down. He had been raised with Old Walker and would follow him anywhere, without being dragged by a rope, so that Wunpost had both hands for any emergency which might arise and could keep his eyes on the trail. And to think that these noble animals, big and black and beautifully gaited, had been bought with Judson Eells' own money; while he, poor fool, sent Lynch out after him on a miserable Indian cayuse. Wunpost's road was always plain, for where he went they must follow, but at every rocky point or granite-strewn flat they must circle and cut for his trail. As he rode on now to the north he did not double and twist, for the Indian would know the old trail; but the tracks he had left behind him before he mounted to the ridge were as aimless as it was possible to make them. They did not strike out boldly up some hogback or canyon but at every fork and bend they turned this way and that, as if he were hopelessly lost. And now as he rode on, unobserved by his pursuers, over the well-worn Indian trail along the summit, Lynch and his tracker were far behind, tracing his mule-tracks to and fro, up and down the broiling hot canyons.