"It must be," thought Melville, "that Tall Bear and his warriors have been scared away by the appearance of white men, and have touched off those buildings out of revenge. If Red Feather and I could have only known that friends were coming we could have stayed at home. I wonder they didn't try to fire that again, now that they can get inside and have so much better chance." Melville watched the glare growing brighter and brighter, until it suddenly occurred to him that Red Feather was a long time in crossing the stream. The light from the conflagration brought the opposite shore into faint view, but failed to reveal the Sioux. While the youth was looking and wondering, however, he heard the splashing of water and observed Saladin making his way back. But, instead of doing so at the regular ferry-place, he had gone some distance above, where the depth was greater. Even while staring at the pony, the animal sank down so low that it was plain he was swimming. This of itself was curious, without the additional fact that there was no one upon his back; he was returning, as may be said, empty handed. As you may well believe, Melville was startled and alarmed; something unusual must have happened on the other shore. There could be no doubt that Saladin had gone entirely across, and now came back without the chief who expected to ride over the ford. The lad rose and walked down to the edge of the water to meet his steed. The latter was obliged to swim only a short distance, when the depth became so shallow that his body rose above the surface, and he quickly stepped out on dry land. "What can this mean?" muttered Melville examining the wetted saddle, bridle, and accoutrements; "were you sent back, Saladin, or did you come of your own accord? Ah, if you had the gift of speech!" It seemed to the lad that he could discern something moving on the other side, but, with the help of the glare of the distant fire, he could not make it out. He ventured to signal to Red Feather by means of the whistle with which he was accustomed to summon Saladin. The Sioux was sure to identify it if it reached his ears. The signal was emitted with such care that it could not have been heard more than a hundred yards away, and the youth listened with a rapidly beating heart for the reply. It came, but in a far different form than was expected or desired. The sounds showed that other animals had entered the water and were approaching the opposite bank. At this juncture, too, the glare from the burning buildings increased to that extent that the other shore came out more distinctly than ever. To his dismay Melville observed that the bank was lined with mounted Indians, three of whom had already ridden into the stream and were urging their ponies across. They were doing this, too, with a skill which left no doubt that they knew all about the holes into which one was likely to plunge.