From the piggeries, we went to the green level where, growing beneath eye-paining lights, was a matted mass of solid vegetation from which came those rare sprigs of green which garnished our synthetic dishes. But this was too monotonous to be interesting and we soon went above to the Defence Level where were housed vast military and rebuilding mechanisms and stores. After our guides had shown us briefly about among these paraphernalia, we were conducted to one of the sloping ramps which led through a heavily arched tunnel to the roof above. Marguerite clung close to my arm, quivering with expectancy and excitement, as we climbed up the sloping passage-way and felt on our faces the breath of the crisp air of the May night. The sky came into vision with startling suddenness as we walked out upon the soft sand blanket of the roof. The night was absolutely clear and my first impression was that every star of the heavens had miraculously waxed in brilliancy. The moon, in the last quarter, hung midway between the zenith and the western horizon. The milky way seemed a floating band of whitish flame. About us, in the form of a wide crescent, for we were near the eastern edge of the city, swung the encircling band of searchlights, but the air was so clear that this stockade of artificial light beams was too pale to dim the points of light in the blue-black vault. In anticipating this visit to the roof I had supposed it would seem commonplace to me, and had discussed it very little with Marguerite, lest I might reveal an undue lack of wonder. But now as I thrilled once more beneath their holy light, the miracle of unnumbered far-flung flaming suns stifled again the vanity of human conceit and I stood with soul unbared and worshipful beneath the vista of incommensurate space wherein the birth and death of worlds marks the unending roll of time. And at my side a silent gazing woman stood, contrite and humble and the thrill and quiver of her body filled me with a joy of wordless delight. A blundering guide began lecturing on astronomy and pointing out with pompous gestures the constellations and planets. But Marguerite led me beyond the sound of his voice. "It is not the time for listening to talk," she said. "I only want to see." When the astronomer had finished his speech-making, our party moved slowly toward the East, where we could just discern the first faint light of the coming dawn. When we reached the parapet of the eastern edge of the city's roof, the stars had faded and pale pink streaked the eastern sky. The guides brought folding chairs from a nearby tunnel way and most of the party sat down on a hillock of sand, very much as men might seat themselves in the grandstand of a race course. But I was so interested in what the dawn would reveal beneath the changing colours of the sky, that I led Marguerite to the rail of the parapet where we could look down into the yawning depths upon the surface of German soil.