As I turned my horse to draw back beside Mademoiselle, my eyes rested upon the stockade of the old Fort, now some little distance in our rear; and to my surprise it already swarmed with savages. Not less than five hundred Indians,--warriors, all of them, and well armed,--tramped as guards beside our long and scattered column, yet hundreds of others were even now overrunning the mound and pouring in at the Fort gates, eager for plunder. I could hear their shouting, their fierce yells of exultation, while the grim and silent fellows who accompanied us never so much as glanced around, although I caught here and there the glint of a cruel, crafty eye. The sight made me wonder; and I swung my long rifle out from the straps at my back down across the pommel of my saddle, more ready to my hand. The trail we had been following now swerved nearer the lake, deflected somewhat by a long high ridge of beaten sand, separating the shore from the prairie. Here the two advancing lines of white and red diverged, the Indians moving around to the western side of the sand-ridge, while Captain Wells and his Miami scouts continued their march along the beach. There was nothing about this movement to awaken suspicion of treachery, for the beach at this point had narrowed too much for so great a number moving abreast, and it was therefore only natural that our allies should seek a wider space for their marching, knowing they could easily reunite with us a mile or so below, where the beach broadened again. Their passing thus from our sight was a positive relief; and so quiet did everything become, except for groaning wheels and the heavy tread of horses, that Mademoiselle glanced up in surprise. "Why, what has become of the Indians?" she questioned. "Have they already left us?" I pointed to the intervening sand-ridge. "They move parallel with us, but prefer to walk upon the prairie grass rather than these beach pebbles. For my part, I would willingly dispense with their guard altogether; for in my judgment we are of sufficient strength to defend ourselves." "Ay, strong enough against savages," interposed De Croix, his eyes upon the straggling line ahead; "yet if by any chance treachery was intended, surely I never saw military formation less adapted for repelling sudden attack. Mark how those fellows march out yonder!--all in a bunch, and with not so much as a corporal's guard to protect the wagons!"