"Ride them down!" exclaimed Harry. My horse ran full into another horse, and he and his rider went down just as I used my pistol. Some one with an oath whacked me over the head with a sabre, my horse stumbled in the darkness, and down I went into chaos. I thought I heard someone singing, and then it seemed as if there was a free concert in progress, while I lay helpless in a great gully out of which I could not climb.