But hardly had the words left his lips when I was conscious of a rushing sound behind me.  I was dashed sidewise, and one of the prisoners, who had made a tremendous spring, alighted on the lieutenant's back, driving him forward as I heard the sound of a blow; the corporal was driven sidewise too, and the lantern fell from his hand.  Then came a terrible shriek, and a scuffling, struggling sound, a part of which I helped to make, for I had been driven against one of the prisoners, who seized me, and as I wrestled with him I felt his hot breath upon my face, and his hands scuffling about to get a tight grip of my throat.