"How is that, George?" asked Bob Owens, who had been detailed as one of the corporals of the guard. "Some of the boys say that if we should follow the Indians for an hour or two longer we would be within sight of their camp-fires."

"What makes them think so?" asked George.

"Because they have found tracks with the sand still running into them. Is that one of the signs by which to tell the age of a trail?"

"Under some circumstances, yes; in the present case, no. You could tell the age of a trail in that way if the ground around it had not been disturbed. This country about here is all quicksand, and you can take your stand almost anywhere along the banks of this stream, and by jumping up and down shake the ground for ten feet on all sides of you. When our heavy column crossed the ford and climbed this bank, it shook the earth, and that was what set the sand to running down into the tracks."

"I declare!" exclaimed Bob, gazing admiringly at his friend; "is there anything a trailer isn't obliged to know?"

"If he wants to be an expert he must keep his eyes and ears wide open, and pay strict attention to little things which almost anybody else would consider to be beneath his notice. It is wonderful what proficiency a person who has a talent for such things can acquire by practice. For example, this scout of ours could learn more about a trail in two minutes than I could in an hour. But he is fearfully jealous," added George with a laugh, "and you ought to have seen how mad I made him while we were passing through that belt of post-oaks this afternoon. Seeing that Captain Clinton was waiting very impatiently for information, I volunteered the statement that the hostiles had passed that way early on Thursday morning, and that Mr. Wentworth was not the only one who had suffered at their hands. The captain asked Mose what he thought of that, and Mose replied, 'I think jest this here, cap: if that kid is agoin' to lead this yere party he had better say so, an' I will go back to the post. He's a'most too fresh, an' he'd better go back in the woods an' practise at holdin' his chin.' But he did not contradict my statement, and that was all the evidence I needed to prove that I was right in what I said. The tracks here on the bank are not as fresh as you suppose. If they were wet, it would be a sign that the Indians crossed the ford since three o'clock this afternoon."

"Why since three o'clock?" asked Bob.

"Because the sun went under a cloud at that hour, and hasn't showed himself since to dry off the water that the horses and cattle brought out of the stream on their feet and legs."

While the two boys were talking in this way George was getting ready to go to bed. The camp was located at the foot of a perpendicular bluff which was perhaps twenty feet in height. On the top of this bluff the horses were picketed, and beyond them were the sentinels who were to look out for the safety of the animals and keep guard over their slumbering companions. Everything outside of the circle of light made by the camp-fires was concealed by the most intense darkness. Not even a star twinkled in the sky. George spread his blankets in a sheltered nook at the foot of the bluff and courted the "drowsy god" in vain. He was tired and his eyes were heavy, but he could not go to sleep. After rolling and tossing about for nearly two hours, he became too nervous to remain inactive any longer, so he slung his rifle on his back and climbed to the top of the bluff, where he found Bob Owens and two other non-commissioned officers sitting beside a fire and conversing in low tones. At another fire a short distance away sat Lieutenant Earle, the officer of the guard, nodding over his pipe.

"Hallo!" exclaimed Bob, "what brought you out here?"