Then he felt a slight draught. The door wasn't shut. It was wide open. He had to close it again.

That was all that happened to mark this night off from any other, and there is no explanation why it happened—began, rather—this night instead of another. Jimmy went to bed with a taut feeling. He'd had the conviction that he opened the door twice. The same door. Then he'd had the conviction that he had had to close it twice. He'd heard of that feeling. Queer, but no doubt commonplace.

He slept, blessedly without dreams. He woke next morning and found his muscles tense. That was an acquired habit. Before he opened his eyes, every morning, he reminded himself that Jane wasn't beside him. It was necessary. If he forgot and turned contentedly—to emptiness—the ache of being alive, when Jane wasn't, was unbearable.

This morning he lay with his eyes closed to remind himself, and instead found himself thinking about that business of the door. He'd kicked the door between the two openings, so it wasn't only an illusion of repetition. He was puzzling over that repetition after closing the door, when he found he had to close it again. That proved to him it wasn't a standard mental vagary. It looked like a delusion. But his memory insisted that it had happened that way, whether it was possible or not.

Frowning, he went out and got his breakfast at a restaurant and rode to work. Work was blessed, because he had to think about it. The main trouble was that sometimes something turned up which Jane would have been amused to hear, and he had to remind himself that there was no use making a mental note to tell her. Jane was dead.

Today he thought a good deal about the door, but when he went home he knew that he was going to have a black night. He wouldn't sleep, and oblivion would seem infinitely tempting, because the ache of being alive, when Jane wasn't, was horribly tedious and he could not imagine an end to it. Tonight would be a very bad one, indeed.

He opened the door and started in. He went crashing into the door. He stood still for an instant, and then fumbled for the lock. But the door was open. He'd opened it. There hadn't been anything for him to run into. Yet his forehead hurt where he'd bumped into the door which wasn't closed at all.

There was nothing he could do about it, though. He went in. He hung up his coat. He sat down wearily. He filled his pipe and grimly faced a night that was going to be one of the worst. He struck a match and lighted his pipe, and put the match in an ashtray. And he glanced in the tray. There were the stubs of cigarets in it. Jane's brand. Freshly smoked.

He touched them with his fingers. They were real. Then a furious anger filled him. Maybe the cleaning woman had had the intolerable insolence to smoke Jane's cigarets. He got up and stormed through the house, raging as he searched for signs of further impertinence. He found none. He came back, seething, to his chair. The ashtray was empty. And there'd been nobody around to empty it.

It was logical to question his own sanity, and the question gave him a sort of grim cheer. The matter of the recurrent oddities could be used to fight the abysmal depression ahead. He tried to reason them out, and always they added up to delusions only.

But he kept his mind resolutely on the problem. Work, during the day, was a godsend. Sometimes he was able to thrust aside for whole half-hours the fact that Jane was dead. Now he grappled relievedly with the question of his sanity or lunacy. He went to the desk where Jane had kept her household accounts. He'd set the whole thing down on paper and examine it methodically, checking this item against that.

Jane's diary lay on the desk-blotter, with a pencil between two of its pages. He picked it up with a tug of dread. Some day he might read it—an absurd chronicle Jane had never offered him—but not now. Not now!

That was when he realized that it shouldn't be here. His hands jumped, and it fell open. He saw Jane's angular writing and it hurt. He closed it quickly, aching all over. But the printed date at the top of the page registered on his brain even as he snapped the cover shut.

He sat still for minutes, every muscle taut.

It was a long time before he opened the book again, and by that time he had a perfectly reasonable explanation. It must be that Jane hadn't restricted herself to assigned spaces. When she had something extra to write, she wrote it on past the page allotted for a given date.

Of course!

Jimmy fumbled back to the last written page, where the pencil had been, with a tense matter-of-factness. It was, as he'd noticed, today's date. The page was filled. The writing was fresh. It was Jane's handwriting.

"Went to the cemetery," said the sprawling letters. "It was very bad. Three months since the accident and it doesn't get any easier. I'm developing a personal enmity to chance. It doesn't seem like an abstraction any more. It was chance that killed Jimmy. It could have been me instead, or neither of us. I wish—"

Jimmy went quietly mad for a moment or two. When he came to himself he was staring at an empty desk-blotter. There wasn't any book before him. There wasn't any pencil between his fingers. He remembered picking up the pencil and writing desperately under Jane's entry. "Jane!" he'd written—and he could remember the look of his scrawled script under Jane's—"where are you? I'm not dead! I thought you were! In God's name, where are you?"

But certainly nothing of the sort could have happened. It was delusion.

That night was particularly bad, but curiously not as bad as some other nights had been. Jimmy had a normal man's horror of insanity, yet this wasn't, so to speak, normal insanity. A lunatic has always an explanation for his delusions. Jimmy had none. He noted the fact.

Next morning he bought a small camera with a flash-bulb attachment and carefully memorized the directions for its use. This was the thing that would tell the story. And that night, when he got home, as usual after dark, he had the camera ready. He unlocked the door and opened it. He put his hand out tentatively. The door was still closed.

He stepped back and quickly snapped the camera. There was a sharp flash of the bulb. The glare blinded him. But when he put out his hand again, the door was open. He stepped into the living-room without having to unlock and open it a second time.

He looked at the desk as he turned the film and put in a new flash-bulb. It was as empty as he'd left it in the morning. He hung up his coat and settled down tensely with his pipe. Presently he knocked out the ashes. There were cigaret butts in the tray.

He quivered a little. He smoked again, carefully not looking at the desk. It was not until he knocked out the second pipeful of ashes that he let himself look where Jane's diary had been.

It was there again. The book was open. There was a ruler laid across it to keep it open.

Jimmy wasn't frightened, and he wasn't hopeful. There was absolutely no reason why this should happen to him. He was simply desperate and grim when he went across the room. He saw yesterday's entry, and his own hysterical message. And there was more writing beyond that.

In Jane's hand.

"Darling, maybe I'm going crazy. But I think you wrote me as if you were alive. Maybe I'm crazy to answer you. But please, darling, if you are alive somewhere and somehow—"

There was a tear-blot here. The rest was frightened, and tender, and as desperate as Jimmy's own sensations.

He wrote, with trembling fingers, before he put the camera into position and pressed the shutter-control for the second time.

When his eyes recovered from the flash, there was nothing on the desk.

He did not sleep at all that night, nor did he work the next day. He went to a photographer with the film and paid an extravagant fee to have the film developed and enlarged at once. He got back two prints, quite distinct. Even very clear, considering everything. One looked like a trick shot, showing a door twice, once open and once closed, in the same photograph. The other was a picture of an open book and he could read every word on its pages. It was inconceivable that such a picture should have come out.

He walked around practically at random for a couple of hours, looking at the pictures from time to time. Pictures or no pictures, the thing was nonsense. The facts were preposterous. It must be that he only imagined seeing these prints. But there was a quick way to find out.

He went to Haynes. Haynes was his friend and reluctantly a lawyer—reluctantly because law practice interfered with a large number of unlikely hobbies.

"Haynes," said Jimmy quietly, "I want you to look at a couple of pictures and see if you see what I do. I may have gone out of my head."

He passed over the picture of the door. It looked to Jimmy like two doors, nearly at right angles, in the same door-frame and hung from the same hinges.

Haynes looked at it and said tolerantly, "Didn't know you went in for trick photography." He picked up a reading glass and examined it in detail. "A futile but highly competent job. You covered half the film and exposed with the door closed, and then exposed for the other half of the film with the door open. A neat job of matching, though. You've a good tripod."

"I held the camera in my hand," said Jimmy, with restraint.

"You couldn't do it that way, Jimmy," objected Haynes. "Don't try to kid me."

"I'm trying not to fool myself," said Jimmy. He was very pale. He handed over the other enlargement. "What do you see in this?"

Haynes looked. Then he jumped. He read through what was so plainly photographed on the pages of a diary that hadn't been before the camera. Then he looked at Jimmy in palpable uneasiness.

"Got any explanation?" asked Jimmy. He swallowed. "I—haven't any."

He told what had happened to date, baldly and without any attempt to make it reasonable. Haynes gaped at him. But before long the lawyer's eyes grew shrewd and compassionate. As noted hitherto, he had a number of unlikely hobbies, among which was a loud insistence on a belief in a fourth dimension and other esoteric ideas, because it was good fun to talk authoritatively about them. But he had common sense, had Haynes, and a good and varied law practice.

Presently he said gently, "If you want it straight, Jimmy ... I had a client once. She accused a chap of beating her up. It was very pathetic. She was absolutely sincere. She really believed it. But her own family admitted that she'd made the marks on herself—and the doctors agreed that she'd unconsciously blotted it out of her mind afterward."

"You suggest," said Jimmy composedly, "that I might have forged all that to comfort myself with, as soon as I could forget the forging. I don't think that's the case, Haynes. What possibilities does that leave?"

Haynes hesitated a long time. He looked at the pictures again, scrutinizing especially the one that looked like a trick shot.

"This is an amazingly good job of matching," he said wrily. "I can't pick the place where the two exposures join. Some people might manage to swallow this, and the theoretic explanation is a lot better. The only trouble is that it couldn't happen."

Jimmy waited.

Haynes went on awkwardly, "The accident in which Jane was killed. You were in your car. You came up behind a truck carrying structural steel. There was a long slim girder sticking way out behind, with a red rag on it. The truck had airbrakes. The driver jammed them on just after he'd passed over a bit of wet pavement. The truck stopped. Your car slid, even with the brakes locked.—It's nonsense, Jimmy!"

"I'd rather you continued," said Jimmy, white.

"You—ran into the truck, your car swinging a little as it slid. The girder came through the windshield. It could have hit you. It could have missed both of you. By pure chance, it happened to hit Jane."

"And killed her," said Jimmy very quietly. "Yes. But it might have been me. That diary entry is written as if it had been me. Did you notice?"

There was a long pause in Haynes' office. The world outside the windows was highly prosaic and commonplace and normal. Haynes wriggled in his chair.

"I think," he said unhappily, "you did the same as my girl client—forged that writing and then forgot it. Have you seen a doctor yet?"

"I will," said Jimmy. "Systematize my lunacy for me first, Haynes. If it can be done."

"It's not accepted science," said Haynes. "In fact, it's considered eyewash. But there have been speculations...." He grimaced. "First point is that it was pure chance that Jane was hit. It was just as likely to be you instead, or neither of you. If it had been you—"

"Jane," said Jimmy, "would be living in our house alone, and she might very well have written that entry in the diary."

"Yes," agreed Haynes uncomfortably. "I shouldn't suggest this, but—there are a lot of possible futures. We don't know which one will come about for us. Nobody except fatalists can argue with that statement. When today was in the future, there were a lot of possible todays. The present moment—now—is only one of any number of nows that might have been. So it's been suggested—mind you, this isn't accepted science, but pure charlatanry—it's been suggested that there may be more than one actual now. Before the girder actually hit, there were three nows in the possible future. One in which neither of you was hit, one in which you were hit, and one—"

He paused, embarrassed. "So some people would say, how do we know that the one in which Jane was hit is the only now? They'd say that the others could have happened and that maybe they did."

Jimmy nodded.

"If that were true," he said detachedly, "Jane would be in a present moment, a now, where it was me who was killed. As I'm in a now where she was killed. Is that it?"

Haynes shrugged.

Jimmy thought, and said gravely, "Thanks. Queer, isn't it?"

He picked up the two pictures and went out.

Haynes was the only one who knew about the affair, and he worried. But it is not easy to denounce someone as insane, when there is no evidence that he is apt to be dangerous. He did go to the trouble to find out that Jimmy acted in a reasonably normal manner, working industriously and talking quite sanely in the daytime. Only Haynes suspected that of nights he went home and experienced the impossible. Sometimes, Haynes suspected that the impossible might be the fact—that had been an amazingly good bit of trick photography—but it was too preposterous! Also, there was no reason for such a thing to happen to Jimmy.

For a week after Haynes' pseudo-scientific explanation, however, Jimmy was almost light-hearted. He no longer had to remind himself that Jane was dead. He had evidence that she wasn't. She wrote to him in the diary which he found on her desk, and he read her messages and wrote in return. For a full week the sheer joy of simply being able to communicate with each other was enough.

The second week was not so good. To know that Jane was alive was good, but to be separated from her without hope was not. There was no meaning in a cosmos in which one could only write love-letters to one's wife or husband in another now which only might have been. But for a while both Jimmy and Jane tried to hide this new hopelessness from each other.

Jimmy explained this carefully to Haynes before it was all over. Their letters were tender and very natural, and presently there was even time for gossip and actual bits of choice scandal....

Haynes met Jimmy on the street one day, after about two weeks. Jimmy looked better, but he was drawn very fine. Though he greeted Haynes without constraint, Haynes felt awkward. After a little he said, "Er—Jimmy. That matter we were talking about the other day—Those photographs—"

"Yes. You were right," said Jimmy casually. "Jane agrees. There is more than one now. In the now I'm in, Jane was killed. In the now she's in, I was killed."

Haynes fidgeted. "Would you let me see that picture of the door again?" he asked. "A trick film like that simply can't be perfect! I'd like to enlarge that picture a little more. May I?"

"You can have the film," said Jimmy. "I don't need it any more."

Haynes hesitated. Jimmy, quite matter-of-factly, told him most of what had happened to date. But he had no idea what had started it. Haynes almost wrung his hands.

"The thing can't be!" he said desperately. "You have to be crazy, Jimmy!"

But he would not have said that to a man whose sanity he really suspected.

Jimmy nodded. "Jane told me something, by the way. Did you have a near-accident night before last? Somebody almost ran into you out on the Saw Mill Road?"

Haynes started and went pale. "I went around a curve and a car plunged out of nowhere on the wrong side of the road. We both swung hard. He smashed my fender and almost went off the road himself. But he went racing off without stopping to see if I'd gone in the ditch and killed myself. If I'd been five feet nearer the curve when he came out of it—"

"Where Jane is," said Jimmy, "you were. Just about five feet nearer the curve. It was a bad smash. Tony Shields was in the other car. It killed him—where Jane is."

Haynes licked his lips. It was absurd, but he said, "How about me?"

"Where Jane is," Jimmy told him, "you're in the hospital."

Haynes swore in unreasonable irritation. There wasn't any way for Jimmy to know about that near-accident. He hadn't mentioned it, because he'd no idea who'd been in the other car.

"I don't believe it!" But he said pleadingly, "Jimmy, it isn't so, is it? How in hell could you account for it?"

Jimmy shrugged. "Jane and I—we're rather fond of each other." The understatement was so patent that he smiled faintly. "Chance separated us. The feeling we have for each other draws us together. There's a saying about two people becoming one flesh. If such a thing could happen, it would be Jane and me. After all, maybe only a tiny pebble or a single extra drop of water made my car swerve enough to get her killed—where I am, that is. That's a very little thing. So with such a trifle separating us, and so much pulling us together—why, sometimes the barrier wears thin. She leaves a door closed in the house where she is. I open that same door where I am. Sometimes I have to open the door she left closed, too. That's all."

Haynes didn't say a word, but the question he wouldn't ask was so self-evident that Jimmy answered it.

"We're hoping," he said. "It's pretty bad being separated, but the—phenomena keep up. So we hope. Her diary is sometimes in the now where she is, and sometimes in this now of mine. Cigaret butts, too. Maybe—" That was the only time he showed any sign of emotion. He spoke as if his mouth were dry. "If ever I'm in her now or she's in mine, even for an instant, all the devils in hell couldn't separate us again!—We hope."

Which was insanity. In fact, it was the third week of insanity. He'd told Haynes quite calmly that Jane's diary was on her desk every night, and there was a letter to him in it, and he wrote one to her. He said quite calmly that the barrier between them seemed to be growing thinner. That at least once, when he went to bed, he was sure that there was one more cigaret stub in the ashtray than had been there earlier in the evening.

They were very near indeed. They were separated only by the difference between what was and what might have been. In one sense the difference was a pebble or a drop of water. In another, the difference was that between life and death. But they hoped. They convinced themselves that the barrier grew thinner. Once, it seemed to Jimmy that they touched hands. But he was not sure. He was still sane enough not to be sure. And he told all this to Haynes in a matter-of-fact fashion, and speculated mildly on what had started it all....

Then, one night, Haynes called Jimmy on the telephone. Jimmy answered.

He sounded impatient.

"Jimmy!" said Haynes. He was almost hysterical. "I think I'm insane! You know you said Tony Shields was in the car that hit me?"

"Yes," said Jimmy politely. "What's the matter?"

"It's been driving me crazy," wailed Haynes feverishly. "You said he was killed—there. But I hadn't told a soul about the incident. So—so just now I broke down and phoned him. And it was Tony Shields! That near-crash scared him to death, and I gave him hell and—he's paying for my fender! I didn't tell him he was killed."

Jimmy didn't answer. It didn't seem to matter to him.

"I'm coming over!" said Haynes feverishly. "I've got to talk!"

"No," said Jimmy. "Jane and I are pretty close to each other. We've touched each other again. We're hoping. The barrier's wearing through. We hope it's going to break."

"But it can't!" protested Haynes, shocked at the idea of improbabilities in the preposterous. "It—it can't! What'd happen if you turned up where she is, or—or if she turned up here?"

"I don't know," said Jimmy, "but we'd be together."

"You're crazy! You mustn't—"

"Goodbye," said Jimmy politely. "I'm hoping, Haynes. Something has to happen. It has to!"

His voice stopped. There was a noise in the room behind him; Haynes heard it. Only two words, and those faintly, and over a telephone, but he swore to himself that it was Jane's voice, throbbing with happiness. The two words Haynes thought he heard were, "Jimmy! Darling!"

Then the telephone crashed to the floor and Haynes heard no more. Even though he called back frantically again, Jimmy didn't answer.

Haynes sat up all that night, practically gibbering, and he tried to call Jimmy again next morning, and then tried his office, and at last went to the police. He explained to them that Jimmy had been in a highly nervous state since the death of his wife.

So finally the police broke into the house. They had to break in because every door and window was carefully fastened from the inside, as if Jimmy had been very careful to make sure nobody could interrupt what he and Jane hoped would occur. But Jimmy wasn't in the house. There was no trace of him. It was exactly as if he had vanished into the air.

Ultimately the police dragged ponds and such things for his body, but they never found any clues. Nobody ever saw Jimmy again. It was recorded that Jimmy simply left town, and everybody accepted that obvious explanation.

The thing that really bothered Haynes was the fact that Jimmy had told him who'd almost crashed into him on the Saw Mill Road, and it was true. That was, to understate, hard to take. And there was the double-exposure picture of Jimmy's front door, which was much more convincing than any other trick picture Haynes had ever seen. But on the other hand, if it did happen, why did it happen only to Jimmy and Jane? What set it off? What started it? Why, in effect, did those oddities start at that particular time, to those particular people, in that particular fashion? In fact, did anything happen at all?

Now, after Jimmy's disappearance, Haynes wished he could talk with him once more—talk sensibly, quietly, without fear and hysteria and this naggingly demanding wonderment.

For he had sketched to Jimmy, and Jimmy had accepted (hadn't he?) the possibility of the other now—but with that acceptance came still others. In one, Jane was dead. In one, Jimmy was dead. It was between these two that the barrier had grown so thin....

If he could talk to Jimmy about it!

There was also a now in which both had died, and another in which neither had died! And if it was togetherness that each wanted so desperately ... which was it?

These were things that Haynes would have liked very much to know, but he kept his mouth shut, or calm men in white coats would have come and taken him away for treatment. As they would have taken Jimmy.

The only thing really sure was that it was all impossible. But to someone who liked Jimmy and Jane—and doubtless to Jimmy and to Jane themselves—no matter which barrier had been broken, it was a rather satisfying impossibility.

Haynes' car had been repaired. He could easily have driven out to the cemetery. For some reason, he never did.