Consciousness went--not easily, but as though it were being taken away, and Guy Burckhardt was asleep. III On the morning of June 16th, Guy Burckhardt woke up in a cramped position huddled under the hull of the boat in his basement--and raced upstairs to find it was June 15th. The first thing he had done was to make a frantic, hasty inspection of the boat hull, the faked cellar floor, the imitation stone. They were all as he had remembered them--all completely unbelievable. The kitchen was its placid, unexciting self. The electric clock was purring soberly around the dial. Almost six o'clock, it said. His wife would be waking at any moment. Burckhardt flung open the front door and stared out into the quiet street. The morning paper was tossed carelessly against the steps--and as he retrieved it, he noticed that this was the 15th day of June. But that was impossible. _Yesterday_ was the 15th of June. It was not a date one would forget--it was quarterly tax-return day. He went back into the hall and picked up the telephone; he dialed for Weather Information, and got a well-modulated chant: "--and cooler, some showers. Barometric pressure thirty point zero four, rising ... United States Weather Bureau forecast for June 15th. Warm and sunny, with high around--" He hung the phone up. June 15th. "Holy heaven!" Burckhardt said prayerfully. Things were very odd indeed. He heard the ring of his wife's alarm and bounded up the stairs. Mary Burckhardt was sitting upright in bed with the terrified, uncomprehending stare of someone just waking out of a nightmare. "Oh!" she gasped, as her husband came in the room. "Darling, I just had the most _terrible_ dream! It was like an explosion and--" "Again?" Burckhardt asked, not very sympathetically. "Mary, something's funny! I _knew_ there was something wrong all day yesterday and--" He went on to tell her about the copper box that was the cellar, and the odd mock-up someone had made of his boat. Mary looked astonished, then alarmed, then placatory and uneasy. She said, "Dear, are you _sure_? Because I was cleaning that old trunk out just last week and I didn't notice anything." "Positive!" said Guy Burckhardt. "I dragged it over to the wall to step on it to put a new fuse in after we blew the lights out and--" "After we what?" Mary was looking more than merely alarmed. "After we blew the lights out. You know, when the switch at the head of the stairs stuck. I went down to the cellar and--" Mary sat up in bed. "Guy, the switch didn't stick. I turned out the lights myself last night." Burckhardt glared at his wife. "Now I _know_ you didn't! Come here and take a look!" He stalked out to the landing and dramatically pointed to the bad switch, the one that he had unscrewed and left hanging the night before.... Only it wasn't. It was as it had always been. Unbelieving, Burckhardt pressed it and the lights sprang up in both halls. * * * * *