Together we went, going first to the house, and found the children crying with fright; some of them tried to tell us something, but we couldn't make out what they were saying. We crossed over to the windmill and a phenomenon indeed met our eyes,--the wheel was turning in the opposite direction from that in which the wind was blowing. We started up the steps and--Ping! Ping! and Boxer fell with an oath and a bullet in his leg. I assisted him to the farmhouse and then scooted over and communicated with the O.C. I also informed a French battery that had been terrifically shelled. In the meantime a stretcher had been sent for, and Boxer was brought back to the dressing station, where he had his wound dressed, which luckily turned out to be slight. That night I was filled full of the spirit of adventure and I wanted to visit the windmill again. I got a pal to go with me and endeavored to make it, but the flares were steadily burning and the snipers were so busy we had to lie low. Again I went to the French battery and told the officer commanding of my suspicions about the windmill. A smile of intelligence and gratefulness lighted up his fine face. "Monsieur, we shall see what we shall see," and he ordered a shell into the heart of the structure, bringing it down in splinters. Then we made for the ruins and found the body of a man dressed in an Algerian uniform; I looked him over carefully; he was the artist I had met in the farmhouse at our former station. There remained still the case of the old man in whose house we had discovered the heliograph and the pigeons. And the gendarmes were again sent for and the Belgian farmer was haled before the officer. With white face and streaming eyes he told the French Captain of the gendarmes that this man had come to him and told him that if he didn't permit him to go into his home, he would instantly signal for the shells and he and his family and buildings would be blown to eternity. The old man was permitted to go, as the French officer was satisfied he was sincere, but that he was utterly powerless to prevent the spy carrying out his plans.