Jo then rode quietly forward. The Pacer took alarm at half a mile, and led his band away out of sight on the soapweed mesa to the southeast. Jo followed at a gallop till he once more sighted them, then came back and instructed the cook, who was also teamster, to make for Alamosa Arroyo in the south. Then away to the southeast he went after the mustangs. After a mile or two he once more sighted them, and walked his horse quietly till so near that they again took alarm and circled away to the south. An hour's trot, not on the trail, but cutting across to where they ought to go, brought Jo again in close sight. Again he walked quietly toward the herd, and again there was the alarm and fright. And so they passed the afternoon, but circled ever more and more to the south, so that when the sun was low they were, as Jo had expected, not far from Alamosa Arroyo. The band was again close at hand, and Jo, after starting them off, rode to the wagon, while his pard, who had been taking it easy, took up the slow chase on a fresh horse. After supper the wagon moved on to the upper ford of the Alamosa, as arranged, and there camped for the night. Meanwhile, Charley followed the herd. They had not run so far as at first, for their pursuer made no sign of attack, and they were getting used to his company. They were more easily found, as the shadows fell, on account of a snow-white mare that was in the bunch. A young moon in the sky now gave some help, and relying on his horse to choose the path, Charley kept him quietly walking after the herd, represented by that ghost-white mare, till they were lost in the night. He then got off, unsaddled and picketed his horse, and in his blanket quickly went to sleep. At the first streak of dawn he was up, and within a short half-mile, thanks to the snowy mare, he found the band. At his approach, the shrill neigh of the Pacer bugled his troop into a flying squad. But on the first mesa they stopped, and faced about to see what this persistent follower was, and what he wanted. For a moment or so they stood against the sky to gaze, and then deciding that he knew him as well as he wished to, that black meteor flung his mane on the wind, and led off at his tireless, even swing, while the mares came streaming after. Away they went, circling now to the west, and after several repetitions of this same play, flying, following, and overtaking, and flying again, they passed, near noon, the old Apache look-out, Buffalo Bluff. And here, on watch, was Jo. A long thin column of smoke told Charley to come to camp, and with a flashing pocket-mirror he made response. Jo, freshly mounted, rode across, and again took up the chase, and back came Charley to camp to eat and rest, and then move on up stream.