"They are landing some round here to-night," he said, pointing out two unoccupied bunks. "I'll call you when we need a car." As he spoke, in succession the three big guns went off. The concussion put the lamp out. "Damn," said Tom Randolph. The lieutenant swore and struck a match. "The red light of the poste de secours is out, too," said Martin. "No use lighting it again with those unholy mortars.... It's idiotic to put a poste de secours in the middle of a battery like this." The Americans lay down to try to sleep. Shell after shell exploded round the dugout, but regularly every few minutes came the hammer blows of the mortars, half the time putting the light out. A shell explosion seemed to split the dugout and a piece of éclat whizzed through the blanket that curtained off the door. Someone tried to pick it up as it lay half-buried in the board floor, and pulled his fingers away quickly, blowing on them. The men turned over in the bunks and laughed, and a smile came over the drawn green face of a wounded man who sat very quiet behind the lieutenant, staring at the smoky flame of the lamp. The curtain was pulled aside and a man staggered in holding with the other hand a limp arm twisted in a mud-covered sleeve, from which blood and mud dripped on to the floor. "Hello, old chap," said the doctor quietly. A smell of disinfectant stole through the dugout. Faint above the incessant throbbing of explosions, the sound of a claxon horn. "Ha, gas," said the doctor. "Put on your masks, children." A man went along the dugout waking those who were asleep and giving out fresh masks. Someone stood in the doorway blowing a shrill whistle, then there was again the clamour of a claxon near at hand. The band of the gas mask was tight about Martin's forehead, biting into the skin. He and Randolph sat side by side on the edge of the bunk, looking out through the crinkled isinglass eyepieces at the men in the dugout, most of whom had gone to sleep again. "God, I envy a man who can snore through a gas-mask," said Randolph. Men's heads had a ghoulish look, strange large eyes and grey oilcloth flaps instead of faces. Outside the constant explosions had given place to a series of swishing whistles, merging together into a sound as of water falling, only less regular, more sibilant. Occasionally there was the rending burst of a shell, and at intervals came the swinging detonations of the three guns. In the dugout, except for two men who snored loudly, raspingly, everyone was quiet. Several stretchers with wounded men on them were brought in and laid in the end of the dugout. Gradually, as the bombardment continued, men began sliding into the dugout, crowding together, touching each other for company, speaking in low voices through their masks.