Part 4 (1/2)

What about inanimate matter? Did it have to believe too? And what about other forms of life?

Or was everything except human beings just part of the props?

He shook his head. That didn't seem like quite the right track. He took another.

The human mind builds up a picture of the outside universe through its senses. Sometimes its ideas are wrong. Right or wrong, inside everyone's mind is a universe, derived from the outside universe.

What if the outside universe were derived from something? Derived from what? The real, logically necessary universe? That could be. At least it seemed to have some value as a starting point.

He tried to reason from that point. Frustration grew in him. He wished he were older, had his university education behind him. There were so many things he couldn't begin to deal with.

Maybe he could take the entire problem to some of his father's friends.

He shook his head over this thought. From all that had gone on it was too likely that the minute one of them discovered something that would be of help he would disappear before he could tell it!

That raised another point. Why didn't he himself vanish? What was there different about him?

A lot. His father had instilled in him a lot of the things he himself could only aspire to. Unbelief was the major thing. Or perhaps it was the other major thing, remembrance.

His father's voice came into consciousness, saying something he had said so many times it was grooved deeply in memory, even to the inflections of voice. ”_All psychoses and mental troubles are caused by walled-off unpleasant memories. The child who trains himself to recall all unpleasant things and deliberately a.s.sociate them with the feeling that they are valuable lessons, but harmless, will grow up in perfect balance._”

He smiled. He could let flow through consciousness, dozens of incidents he had taken up with his father.

He was definitely different than others around him. So different he had systematically disguised it by a front of accepted behavior--systematically and consciously, under his father's guidance.

There was a chance those differences made him safe. There was a chance those differences would make it possible for him to find out what caused the others to vanish, without he himself vanis.h.i.+ng.

The other train of thought inserted itself into consciousness again. Was belief the key to the disappearances?

Mark Smythe hadn't paid attention when the theory was being explained.

The others had undoubtedly lapped it up. The peculiar thing about the theory was that it was so logical and so inevitable that the mind tended to accept it, believe it to be true in spite of the evidence of the senses.

Let us suppose, Fred mused, that deep within the mind there is some matrix of thought that ties the human to this universe. A matrix that could conceivably be altered, and when altered would automatically s.h.i.+ft the person to another universe that the altered matrix fitted.

The subconscious usually took time to absorb and react. That was another thing his father had taught him to observe. Learn something, and it takes from days to months for it to become lodged in the subconscious and to rise into operation naturally from there.

John Henderson had taken six weeks to vanish after having learned the theory. It had taken Horace Smith three and a half days, but he had had the added factor of Dr. Henderson's disappearance to trigger reactions.

The theoretical physics cla.s.s had taken three days exactly, and its vanis.h.i.+ng had been a sort of group action or chain reaction, with intensely emotional reaction after the first student had vanished before the eyes of the others.

His own father, originator of the theory, had probably fallen into the trap of starting to believe after Horace had vanished, so it became a greater probability that the disappearance was related to knowledge of the theory. Seeing the students vanish had probably set up an emotional state where complete belief was precipitated.

In the whole series the only improbable part was that so many students would react in the same short time. That was partly nullified by the fact that it was a special cla.s.s, and only high I.Q. students with excellent records were accepted. They would tend to be somewhat identical in reaction times.

He straightened up and stared through the winds.h.i.+eld at the dark street.

So there it was, the probable mechanism of vanishment. A system was fed into the conscious mind. The conscious mind accepted it. In due time that system was transferred down into the matrix that held the person in this reality or universe. Once there, it made the whole person _transfer_ to a system where the altered matrix fitted. It might not be the system pictured in his father's theory. It might be a compromise system.

_Where_ and _when_ probably had no meaning in relation to the two systems. That was why, when the s.h.i.+ft came, the person vanished instantly without any strange manifestations of any kind.

Was it reversible? If so, then some of those who had vanished would reappear eventually.