Sam was like a dog as he followed. There was not the smallest doubt that the little fellow was gifted with the most wonderful power of observation, and with it that of deduction. For now that the sun was up, and the light strong, he led the party at a trot, never even requiring to climb out of his saddle. Dressed in tattered garments, which were still drenched with the rain that had fallen upon him during the previous night, the diminutive negro looked wonderfully woebegone; but that was from behind. One must not always judge by the condition of a man's garments; for seen from the front the little fellow was evidently very much alive. That same intent expression was on his face, while his piercing eyes were glued to the track. It was half an hour later when he threw up his hand and slid from his saddle. "Camp here, dem scum," he announced as Jim rode up. "Four ob de rascal, and missie. Yo not tink so? Den see here; dem's her footmarks." The most unbelieving person would have been convinced, for the ground bore undoubted witness to what had happened. It was thickly marked by horses, while near at hand the animals had been tied to the branch of a tree hanging close to the earth. A little camp had been formed within a few yards, and in and amongst the bootmarks of Jaime de Oteros and his fellows were the smaller shoe impressions of Sadie. Jim glowered upon them; his lips came firmly together, and with the impetuosity of youth, which brooks no restraint, he set his party in motion again. But when another two hours had passed Sam declared that the fugitives were still far ahead. "Yo watch de hollows de horses make," he said to Jim, inviting him to join him on the ground. "It rain hard for ten minutes two hours ago, yo remember." Our hero had not failed to recollect the fact. It was one of those little cloudbursts so often experienced in the neighbourhood. A sharp, heavy shower had fallen, and then the clouds had cleared away as if by magic, leaving a fine sky, with the sun floating in it. "But how can you say from that shower that they are still far ahead?" he asked the little negro. Sam screwed up his eyes before he answered, and then bent over one of the hoof impressions. "Dere's water here, in de hole," he said. "Suppose no hole, den no water. Run 'way along de ground. Ebery one of dese marks here when dat shower come, and de water fill um. Yo not tink dat? Den look here; dis horse go close under a tree, where de sun not manage to reach. What now do you tink?" Jim was wonderfully troubled. He had often read and heard of the ways of trackers, and had imagined the art not so difficult; but here was a poser. Jim showed him the hoofmarks of one of the beasts ridden by the fugitives, pointing out that they lay beneath the shadow of a tree, and asked him wherein lay evidence that the fugitives were far ahead. It was a conundrum; he shook his head impatiently.