And then I felt myself materializing. Around me walls were taking form. I floated down a foot or two and came to rest upon a new floor. My hand brushed it. My physical senses were returning. I could feel a floor of concrete. A vague, shimmering light was near me. It seemed to outline the rectangle of a window. All around was darkness. Empty darkness. Soundless, with only the throbbing hum of the mechanism.... I was indoors, in a room. I felt suddenly almost normal, except for the whirring vibration. I flung the switch again. There was a shock. A whirling of my senses. Then I sat up; my head steadied. The nausea passed. I was back in my own world, in New York City. This was night: I tried to calculate the time. Derek and I had departed about midnight. This would be, then some time before dawn. I was in a cellar room, lying on its cement floor. There was a window, with a faint light outside it. A window up near the ceiling. A straggling illumination showed me a bin, a few barrels, a door leading into another room which looked as though it might be a machine shop. I sat up, calculating. I was a thousand feet perhaps from the Battery wall, two hundred feet from the Hudson River. This was an office building, and I was in one of its cellar rooms, at the ground level. Near dawn? I tried to calculate what might be overhead. A deserted office building. Too early yet for the scrub-women. The elevator would not be running. I laughed to myself. Of what use to me an elevator, if it had been running? How could I, a midnight prowler, appear from the cellar of this building, and demand to be taken upstairs! There would be no elevator, but there would be watchmen. I would avoid them. I found a door. My heart leaped with a sudden fear that it would be locked, but it was not. I went through it into a passage and found the staircase. I made two turns. I tried again to keep my mind on this Space here. I stood, carefully thinking. I had it clear. I had made no move without careful thought. The tower with Rohbar was still to my left, and about directly above me. I went up the short stone staircase, opened another door carefully. I was in the dim lower hall of the office building. I found myself beside the deserted elevator shaft. A light was burning on the night attendant's table in an alcove, on the other side of the shaft. He sat there with his back to me. I closed the door soundlessly. The stairway upward beside the elevator was here. I watched my chance. I darted around the angle and went up. I met no one. The concrete staircase had a light at each floor. Four floors up. No, not enough! I opened the fourth floor door. The marble hall of the office building was empty and silent. Rows of locked office doors with their gold-leaf names and numbers. A single dim light to illumine the silent emptiness....