"Silence in the ranks!" ordered the captain sharply, and both young soldiers became silent as the little band marched forward. The threatening sound was occasionally repeated, and then after a half-hour or more had elapsed it died away and was not heard again. Ignorant of its cause, Noel's fears were not relieved. The suggestion of Dennis that the sounds came from cannon was undoubtedly correct, and in that event an engagement not far away was even now taking place. Puzzled as well as alarmed, it was not difficult for the young soldier to decide that the two armies now must be near each other. He had no knowledge of the region through which he was moving, the only place of which he had heard in the vicinity being Frederick City. Just where this was situated, and what the sympathies of its inhabitants were, he did not know. Noel was aware also that his companion was manifestly in very low spirits. Never before had he seen Dennis so cast down. The sight was depressing, and in spite of his efforts to convince himself that his fears were groundless Noel's confidence was rapidly vanishing as the men advanced. How far away the main body was lying was another matter of which he was in ignorance. Refreshed by the food that Eliza Jane had served him he was in better condition to endure a long march, if such a demand should be made upon him, than he had been at any time since he had escaped the attack at Harper's Ferry. It was the unconcealed depression of Dennis that influenced him now. When he had first been charged with being a deserter he had looked upon the matter as a joke. He was fearful by this time, however, as has been said, that with his friends all in another division of the army or prisoners of the Confederates, it might be impossible for him to prove his identity, at least for a time. That he was then a regularly enrolled sharpshooter, and in his small way had done faithful service in the Peninsula campaign, was true. But could he convince the captain that his record was clean? There was no delay in the march. When two hours had elapsed, Noel was surprised to find that they were approaching a camp. This camp, however, was so manifestly only a temporary affair that he easily conjectured that the men practically were under marching orders. Perhaps they had come a considerable distance that very day. Without waiting for any instructions the young captain directed that Noel and Dennis should be sent to the guard-tent, into which both were somewhat roughly thrust. To Noel's surprise he found within the tent a half-dozen unfortunate men, and in a brief time, from the confessions which followed, he was aware that every one there was facing a charge of desertion. Indeed, one of the men was describing the treatment which was measured out to those who had deserted from the ranks.