II At ten o'clock the next morning, the two cars were moving at sixty miles an hour along a road that ran parallel with the German trenches. There was a slight screen of canvas to hide the traffic, for the road by Dead-Man's-Corner was not the safest way into Arras at that time. But they reached the city without misadventure, and May Margaret felt nearer now than ever to the secret of the quest. No dream was ever so strange as this great echoing shell of the deserted city where he, too, had walked so recently. He, too, had passed along these cracked pavements, keeping close to the wall, in order to escape observation from the enemy, whose lines ran through one end of the city at this moment. He had seen these pitiful interiors of shattered houses, where sometimes the whole front had been blown away, leaving the furniture still intact on two floors, and even pictures, a little askew, on the walls. He had seen that little black crucifix over that bed; crossed this grass-grown square; and gone into the shattered railway-station, where the many-colored tickets were strewn like autumn leaves over the glass-littered floor. The Spaniard filled his pockets with them. They went down a narrow street to the ruins of the cathedral. On one of the deserted houses there was a small placard advertising the Paris edition of a London paper, the only sign of the outside world in all that echoing solitude. The neutrals rejoiced greatly before a deserted insurance office, which still displayed an advertisement of its exceedingly reasonable rates for the lives of peaceful citizens. Their merriment was stopped abruptly by a hollow boom that shook the whole city and rumbled echoing along the deserted streets from end to end. "That's a Boche shell," said Crump. "It sounds as if they've got the cathedral again." At noon they lunched under the lee of a hill just outside Arras, that had been drenched with blood a few weeks earlier. The great seas of thunder ebbed and flowed incessantly from sky to sky, as if the hill were the one firm island in the universe and all the rest were breaking up and washing around them. The amazing incongruity of things bewildered May Margaret again. It was more fantastic than any dream. They sat there at ease, eating chicken, munching sandwiches, filling their cups with red wine and white, and ending with black coffee, piping hot from the thermos bottle. Great puffs of brown smoke rose in the distance where our shells were dropping along the German line. It looked as if the trees were walking out from a certain distant wood. Little blue rings of smoke rose from the peaceful cigarettes around her. Bees and butterflies came and went through the sunshine; and, in the stainless blue sky overhead there was a rush and rumor as of invisible trains passing to and fro. The neutrals amused themselves by trying to distinguish between our own and the enemy shells.