Shots were exchanged at intervals throughout the day between French batteries on the right and left and a redoubt the Germans had thrown up on a rise four or five hundred yards behind their village; the gunners on both sides occasionally directing their fire upon the houses; the outposts were for the most part silent, as it was seldom indeed that even a momentary glimpse was obtained of helmet or kepi, and the orders were that there was to be no useless firing. During the day the companies took turn at outpost duty, but when night fell the line was strengthened, half the men being under rifles, while the rest lay down with their arms by their side, ready to fall in at a moment's notice. A dropping fire was kept up on both sides, but this was rather for the purpose of showing that they were on the alert than with any idea of harming the invisible foe. At ten o'clock Cuthbert went out with the half-company to which he belonged, to relieve their comrades who had been for the last three hours in the front line. They had been some little time on duty when Pierre Leroux, who was in charge of the half-company, said to Des Valles, who commanded the whole of the outposts-- "It seems to me that I can hear a deep sound; it comes in pulsations, and I think it is a considerable body of men marching." The captain listened with bent head for a short time. "You are right, Pierre, there is certainly a movement of some sort going on in front, but I fancy it is some distance away; if they were marching on the village in front we should hear it more plainly. You had better send out three or four men from your right let them go some distance along before they attempt to creep forward. The Prussian sentries are too thick along there facing us, but the men might possibly crawl pretty close up to their outposts farther along, they won't be so thick there. Pick four good men, it is a dangerous service. Tell them to get as near as they can to their sentries without being observed, and then to lie and listen attentively. They will have a better chance of hearing there than we have. There is no getting the men to lie perfectly quiet here." "Can I take three men and go myself with them, Des Valles?" "Yes, if you like. I will stop with the company until you return." The lieutenant went along the line, stopping at each man to ask his name. He chose Cuthbert and two men, one from each of the principal art schools, as he thought it might look like favoritism if he took all from among his own comrades. The sentries became more and more scattered as he went along, the main body being posted in front of the village. The last few men were warned that he was going forward, and that they were not to fire until he returned. He sent the last man on the line to communicate with the outposts, furnished by the corps occupying the ground farther to the right, that some men were going out to reconnoitre. Then he and his companions cautiously crawled forward.