"I was thinking of the same thing," said the other, acting at once upon the suggestion. They doubled the space heretofore separating them from the guide, who took no notice, apparently, of the change in their relative situations. The thought in the minds of the boys was that, if Arqu-wao should attempt to take them into a camp of their enemies, or to reveal them to a war party, or, in fact, to attempt any form of betrayal, they would have a much better chance of saving themselves by a rapid retreat. They might well doubt whether the prospect of their guide benefiting them was worth all their mental disquiet. It is probable that, had they taken more time to consider the matter at the beginning, they would have disarmed the Shawanoe and allowed him to go in peace. All at once he made a sharp turn to the left. As he did so, he looked around, so that his face was in full view, and to the amazement of the lads they saw a distinct grin upon it. "That's the first time he has tried to smile," remarked Larry, "and I'm afeered of it." "Don't you understand what it means?" asked his friend a minute later. "No, do you?" "There it is." As Wharton spoke he pointed to the ground in front. Larry at once saw the significance of the words. They were following a distinctly marked trail. "But is it the right one?" whispered Wharton. CHAPTER XXIV. THE TRACKS OF HORSES. At the moment when neither of the youths had a thought of such a thing, they found themselves walking along a distinctly marked trail in the woods, while Arqu-wao, the Shawanoe guide, turned his head with an odd expression, as if to ask their opinion of the manner in which he had kept his agreement. This issue would have been highly pleasing but for the question which instantly presented itself to Wharton Edwards and Larry Murphy--were they upon the right trail? Fully aware of the treacherous subtlety of the American race, they might well doubt the answer. The Indian must have seen that he was regarded with suspicion, and knew, therefore, that extraordinary care was necessary on his part to bring about the ruin of his captors and save himself. What more likely to deceive them than the act of taking them to a plainly marked path through the woods? But such trails were not common at that day in the forest, and since the boys had passed over the one connecting the block-house with the settlement, it surely seemed that they ought to be able to identify it. They set out to do so, and quickly succeeded. Wharton was slightly in advance of his companion, and, turning his head, he said in a low tone, over his shoulder: "Larry, we're on the right track as sure as we're born." "I know it. Do ye mind that tree over there to the right, beyant, that has been knocked all to splinters by lightning? Do ye mind that, I say?" "Yes; I remember it well. We saw it last fall when we passed here."