That stew tasted fine, I was as hungry as a bear. We had "seconds," or another helping, because three of the men had gone "West," killed by the explosion of the German trench mortar, and we ate their share, but still I was hungry, so I filled in with bully beef and biscuits. Then I drained my water bottle. Later on I learned another maxim of the front line,--"Go sparingly with your water." The bully beef made me thirsty, and by tea time I was dying for a drink, but my pride would not allow me to ask my mates for water. I was fast learning the ethics of the trenches. That night I was put on guard with an older man. We stood on the fire step with our heads over the top, peering out into No Man's Land. It was nervous work for me, but the other fellow seemed to take it as part of the night's routine. Then something shot past my face. My heart stopped beating, and I ducked my head below the parapet. A soft chuckle from my mate brought me to my senses, and I feebly asked, "For God's sake, what was that?" He answered, "Only a rat taking a promenade along the sandbags." I felt very sheepish. About every twenty minutes the sentry in the next traverse would fire a star shell from his flare pistol. The "plop" would give me a start of fright. I never got used to this noise during my service in the trenches. I would watch the arc described by the star shell, and then stare into No Man's Land waiting for it to burst. In its lurid light the barbed wire and stakes would be silhouetted against its light like a latticed window. Then darkness. Once, out in front of our wire, I heard a noise and saw dark forms moving. My rifle was lying across the sandbagged parapet. I reached for it, and was taking aim to fire, when my mate grasped my arm, and whispered, "Don't fire." He challenged in a low voice. The reply came back instantly from the dark forms: "Shut your blinkin' mouth, you bloomin' idiot; do you want us to click it from the Boches?" Later we learned that the word, "No challenging or firing, wiring party out in front," had been given to the sentry on our right, but he had failed to pass it down the trench. An officer had overheard our challenge and the reply, and immediately put the offending sentry under arrest. The sentry clicked twenty-one days on the wheel, that is, he received twenty-one days' Field Punishment No. I, or "crucifixion," as Tommy terms it. This consists of being spread-eagled on the wheel of a limber two hours a day for twenty-one days, regardless of the weather. During this period, your rations consist of bully beef, biscuits, and water. A few months later I met this sentry and he confided to me that since being "crucified," he has never failed to pass the word down the trench when so ordered. In view of the offence, the above punishment was very light, in that failing to pass the word down a trench may mean the loss of many lives, and the spoiling of some important enterprise in No Man's Land. CHAPTER VI "BACK OF THE LINE"