The Square, immense in its solitude, was full to the brim of moonlight. The garland of lights at the foot of the houses seemed to burn at the bottom of a bluish pool. I noticed with infinite satisfaction that the unnecessary trees the Municipality insisted upon sticking between the stones had been steadily refusing to grow. They were not a bit bigger than the poor victims I could remember. Also, the paving operations seemed to be exactly at the same point at which I left them forty years before. There were the dull, torn-up patches on that bright expanse, the piles of paving material looking ominously black, like heads of rocks on a silvery sea. Who was it that said that Time works wonders? What an exploded superstition! As far as these trees and these paving stones were concerned, it had worked nothing. The suspicion of the unchangeableness of things already vaguely suggested to my senses by our rapid drive from the railway station was agreeably strengthened within me. "We are now on the line A.B.," I said to my companion, importantly. It was the name bestowed in my time on one of the sides of the Square by the senior students of that town of classical learning and historical relics. The common citizens knew nothing of it, and, even if they had, would not have dreamed of taking it seriously. He who used it was of the initiated, belonged to the Schools. We youngsters regarded that name as a fine jest, the invention of a most excellent fancy. Even as I uttered it to my boy I experienced again that sense of my privileged initiation. And then, happening to look up at the wall, I saw in the light of the corner lamp, a white, cast-iron tablet fixed thereon, bearing an inscription in raised black letters, thus: "Line A.B." Heavens! The name had been adopted officially! Any town urchin, any guttersnipe, any herb-selling woman of the market-place, any wandering Boeotian, was free to talk of the line A.B., to walk on the line A.B., to appoint to meet his friends on the line A.B. It had become a mere name in a directory. I was stunned by the extreme mutability of things. Time could work wonders, and no mistake. A Municipality had stolen an invention of excellent fancy, and a fine jest had turned into a horrid piece of cast- iron. I proposed that we should walk to the other end of the line, using the profaned name, not only without gusto, but with positive distaste. And this, too, was one of the wonders of Time, for a bare minute had worked that change. There was at the end of the line a certain street I wanted to look at, I explained to my companion.