The wounded and the unwounded passed each other in these dimly lighted corridors. Their steel hats clinked together. Their bodies touched. Wafts of stale air laden with a sickly stench came out of the vaults. Faint whiffs of poison-gas filtered through the soil above and made men vomit. For the most time the men were silent as they passed each other, but now and then a wounded man would say, "Oh, Christ!" or "Mind my arm, mate," and an unwounded man would pass some remark to the man ahead. In vaults dug into the sides of the passages were groups of tunnellers and other men half screened by blanket curtains. Their rifles were propped against the quarried rocks. They sat on ammunition boxes and played cards to the light of candles stuck in bottles, which made their shadows flicker fantastically on the walls. They took no interest in the procession beyond their blankets--the walking wounded and the troops going up. Some of them slept on the stone floors with their heads covered by their overcoats and made pillows of their gas-masks. Under some old houses of Arras were women and children--about 700 of them--among our soldiers. They were the people who had lived underground since the beginning of the war and would not leave. Only four of them went away when they were told of the coming battle and its dangers. "We will stay," they said with a certain pride because they had seen so much war. A few women were wounded and one or two killed. Later, after the first day's battle, in spite of some high velocities from long-range guns, the streets and squares were filled with soldiers, and Arras was tumultuous with the movement of men and horses and mules and wagons. The streets seethed with Scottish soldiers muddy as they came straight out of battle, bloody as they walked in wounded. Many battalions of Jocks came into the squares, and their pipers came to play to them. I watched the Gordons' pipers march up and down in stately ritual, and their colonel, who stood next to me, looked at them with a proud light in his eyes as the tune of "Highland Laddie" swelled up to the gables and filled the open frontages of the gutted houses. Snowflakes fell lightly on the steel hats of the Scots in the square, and mud was splashed to the khaki aprons over their kilts--no browner than their hard lean faces--as a battery rumbled across the cobbled place and the drivers turned in their saddles to grin at the fine swagger of the pipers and the triumph of the big drumsticks. An old woman danced a jig to the pipes, holding her skirt above her skinny legs. She tripped up to a group of Scottish officers and spoke quick shrill words to them. "What does the old witch say," asked a laughing Gordon. She had something particular to say. In 1870 she had heard the pipes in Arras. They were played by prisoners from South Germany, and as a young girl she had danced to them.... There was a casualty clearing-station in Arras, in a deep high vault like the crypt of a cathedral.