In an open valley that sloped between hills covered with beech-woods, stood the tall abbey, a Gothic nave and apse with beautifully traced windows, with the ruin of a very ancient chapel on one side, and crossing the back, a well-proportioned Renaissance building that had been a dormitory. The first time that Martin saw the abbey, it towered in ghostly perfection above a low veil of mist that made the valley seem a lake in the shining moonlight. The lines were perfectly quiet, and when he stopped the motor of his ambulance, he could hear the wind rustling among the beech-woods. Except for the dirty smell of huddled soldiers that came now and then in drifts along with the cool wood-scents, there might have been no war at all. In the soft moonlight the great traceried windows and the buttresses and the high-pitched roof seemed as gorgeously untroubled by decay as if the carvings on the cusps and arches had just come from under the careful chisels of the Gothic workmen. "And you say we've progressed," he whispered to Tom Randolph. "God, it is fine." They wandered up and down the road a long time, silently, looking at the tall apse of the abbey, breathing the cool night air, moist with mist, in which now and then was the huddled, troubling smell of soldiers. At last the moon, huge and swollen with gold, set behind the wooded hills, and they went back to the car, where they rolled up in their blankets and went to sleep. Behind the square lantern that rose over the crossing, there was a trap door in the broken tile roof, from which you could climb to the observation post in the lantern. Here, half on the roof and half on the platform behind the trap-door, Martin would spend the long summer afternoons when there was no call for the ambulance, looking at the Gothic windows of the lantern and the blue sky beyond, where huge soft clouds passed slowly over, darkening the green of the woods and of the weed-grown fields of the valley with their moving shadows. There was almost no activity on that part of the front. A couple of times a day a few snapping discharges would come from the seventy-fives of the battery behind the Abbey, and the woods would resound like a shaken harp as the shells passed over to explode on the crest of the hill that blocked the end of the valley where the Boches were.