Thus turned back at the very outset of his adventure, Rene knew not what to do. Should he attempt to scale the walls, he might be shot while so doing, and at any rate there was the moat beyond, which he could not possibly cross without detection. Seeking the deep shadow of an angle, the boy seated himself on a gun-carriage and pondered over the situation. The more he thought of it the more impossible did it seem for him to escape beyond the grim walls and meet Has-se at the appointed time. While he was thus overcome by the difficulties of his position, and as he had about concluded that he had undertaken an impossibility, he was startled by the deep tones of the great bell that hung in the archway of the gate, striking the hour of ten o'clock. Directly afterwards came the measured tramp of the guard and the clank of their weapons as they made their round for the purpose of relieving the sentinels on duty, and replacing them with fresh men. Rene sat so near the gate-way that he could overhear what was said when that post was relieved, and distinguishing above the rest the voice of his old friend Simon, the armorer, he became convinced that he had been placed on duty at this most important point. After relieving this post the guard resumed their march, and passed so close to where Rene sat in the shadow of the great gun that, had the night been a shade lighter, they must have seen him. As it was, he escaped detection, and once more breathed freely as their footsteps sounded fainter and fainter in the distance. After a while he heard them return along the opposite side of the fort, and finally halt in front of the guard-house, when silence again reigned throughout the entire enclosure. As Rene still sat on the gun-carriage, thinking how he might turn to account the fact of his friend Simon being on duty at the main gateway, the sound of a groan came from that direction. As it was repeated, the lad sprang to his feet and walked quietly but rapidly towards the place whence it came. When near the gateway he laid down his cross-bow and advanced without it, until brought to a halt by a sharp challenge in the gruff voice of old Simon. Rene gave the countersign, and added, "It is I, Rene de Veaux, good Simon. Hearing thy groans, I came to learn their cause. What distresses thee so grievously?" "Ah! Master De Veaux," answered the old soldier, "I fear me greatly that the fever of the bones with which so many of our men are suffering has at length laid hold on me, I have been warned for some days of its approach, and only a few hours since obtained from good Master Le Moyne physic which, if taken at the outset, prevents much pain. I left it in the smithy near the forge, not deeming the attack so near; but the chill of the night air hath hastened it, and already am I suffering the torments of the rack. Tell me, lad, wilt thou fetch me the phial from the smithy, that I may test the virtue of its contents?"