Henry knew what this meant. Tom had heard something moving in the thickets, and, like a good sentinel, he had gone to investigate. A rabbit, doubtless, or perhaps a sneaking raccoon. Henry rose to a sitting position, and drew his own rifle across his knees. He would watch while Tom was gone, and then lie would sink quietly back, not letting his comrade know that lie had taken his place. The faintest of winds began to stir among the thickets. Light clouds drifted before the moon. Henry, sitting with his rifle across his knees, and Shif'less Sol, asleep in the shadows, were invisible, but Henry saw beyond the circle of darkness that enveloped them into the grayish light that fell over the bushes. He marked the particular point at which he expected Tom Ross to appear, a slight opening that held out invitation for the passage of a man. He waited a long time, ten minutes, twenty, a half hour, and the sentinel did not return. Henry came abruptly out of his dreamy state. He felt with all the terrible thrill of certainty that what happened to Long Jim and Paul had happened also to Silent Tom Ross. He stood erect, a tense, tall figure, alarmed, but not afraid. His eyes searched the thickets, but saw nothing. The slight movement of the bushes was made by the wind, and no other sound reached his ears. But he might be mistaken after all! The most convincing premonitions were sometimes wrong! He would give Tom ten minutes more, and he sank down in a crouching position, where he would offer the least target for the eye. The appointed time passed, and neither sight nor sound revealed any sign of Tom Ross. Then Henry awakened Shif'less Sol, and whispered to him all that he had seen. “Whatever took Jim and Paul has took him,” whispered the shiftless one at once. Henry nodded. “An' we're bound to look for him right now,” continued Shif'less Sol. “Yes,” said Henry, “but we must stay together. If we follow the others, Sol, we must follow 'em together.” “It would be safer,” said Sol. “I've an idee that we won't find Tom, an' I want to tell you, Henry, this thing is gittin' on my nerves.” It was certainly on Henry's, also, but without reply he led the way into the bushes, and they sought long and well for Silent Tom, keeping at the same time a thorough watch for any danger that might molest themselves. But no danger showed, nor did they find Tom or his trail. He, too, had vanished into nothingness, and Henry and Sol, despite their mental strength, felt cold shivers. They came back at last, far toward morning, to the bank of the creek. It was here as elsewhere a narrow but deep stream flowing between banks so densely wooded that they were almost like walls. “It will be daylight soon,” said Shif'less Sol, “an' I think we'd better lay low in thicket an' watch. It looks ez ef we couldn't find anything, so we'd better wait an' see what will find us.”