I had to stand on tiptoe to finish the sentence because of the mathematics involved. Every brick was doubling and redoubling itself in just under a minute. And the wall was getting quite impressively high. "Mr. Jones," called one of the Commissioners. It was not until I tried to walk round the end of the wall that I found I had been out-flanked. I ran to the nearest wall of the courtroom but the bricks got there first. I heard a rending noise that suggested the other end had gone clean through the opposite wall. As a matter of fact, I saw the astonished face of an attorney entering the main door of the Justice Building as the wall advanced towards him. Then he saw me. He grinned and waved. I was in no mood to wave back. "Mr. Lood, Mr. Lood," I yelled. "Can you hear me?" "Wall too thick, yus," came a muffled answer. And indeed it was. I had not noticed it, but the wall was expanding sideways as well. I was calculating the approximate thickness when it went up and through the roof of the courtroom. Fortunately it was a nice sunny day. * * * * * However, this was no time to sunbathe and I dashed towards the hole in the courtroom wall, where Lood's wall had gone through. I just got out before a buttress, coming out the wall at right angles, blocked the gap. I remembered something Lood had said about the automatic creation of full-scale houses on a simple standard plan: two rooms, a toilet and a patio. Outside, the wall was well on the way towards completing its second simple house. This side of the wall was, that is. I could only assume it was doing something similar on the other side. There was no way of getting round and seeing, except by outstripping the wall in a sprint. I gathered my breath and dignity and ran very rapidly down the length of the wall, round the far mounting tiers of brick, advancing now on the State Library, and back to where I had left the Commissioners and Mr. Lood. I was faced by a thicket of patios and arched doorways and low-roofed houses. "Your Honors, Your Honors," I called hopefully, walking into the maze, in the general direction of what appeared to be an old and ruined war monument. It then occurred to me that this was the outer wall of the courthouse. It stood far off, pointing a stone finger to the sky, as if going down in a sea of brick for the third time. "Your Honors, Your Honors...." I met them turning a corner. Unfortunately, they seemed to have found it necessary to crawl through a broken gap of some sort. They were very dusty and had a slightly shredded appearance. "Ah, Mr. Jones," they said grimly, dusting each other off. A tremendous crash announced the falling in of the roof of the State Library. "Well," said the thin Commissioner, "he did say it was revolutionary." I smiled politely. "Don't giggle, Mr. Jones, or we'll hold you in contempt." We wound out of the maze in single file. A pattering behind us announced Lood bringing up the rear.