"Hell," said Evans, "there always is in everything new. My ships sound like it, too. But the thing will work. I know it will.”
Kingsley perched himself on a heavy kitchen chair.
"It started more than a year ago," he said. "We were studying the cosmics.
Elusive things, those rays. Men have studied them for about five thousand years and they still don't know as much about them as you think they would after all that time. We thought at first that we'd made a really astounding discovery, for our instruments, used on top of the building, showed that the rays came in definite patterns. Not only that, but they came in definite patterns at particular times. We developed new equipment and learned more about the pattern. We learned that it occurred only when Pluto had rotated into such a position that this particular portion of the planet was facing the Great Nebula in Andromeda. We learned that the pattern, besides having a certain fixed physical structure, also had a definite time structure, and that the intensity of the bombardment always remained the same. In other words, the pattern never varied as to readings; it occurred at fixed intervals whenever we directly faced the Great Nebula, and the intensity varied very slightly, showing an apparent constant source of energy operating at specific times. In between those times our equipment registered the general haphazard behavior one would expect in cosmic rays.”
The doctor rumbled on: "The readings had me down. Cosmic simply shouldn't behave that way. There never had been any instance of their behaving that way at any time before. Of course, this was the first thorough investigation far from the Sun's interfering magnetic fields. But why should they behave in that manner only when we were broadside to the Great Nebula?
"My two assistants and I worked and studied and theorized and it finally came down to just one thing. The things we were catching with our instruments weren't cosmic rays at all. They were something else. Something new. Some strange impulse coming to us from outer space. Almost like a signal. Like something or someone or God-knows-what was signaling to someone or something stationed here on Pluto. We romanticized a bit. We toyed with the idea of signals coming from another galaxy, for you know the Great Nebula is an exterior galaxy, a mighty star system, some nine hundred million light years across intergalactic space.
"But that was just imagining. There was nothing to support it in the light of factual evidence. We still aren't sure what it's all about, although we know a great deal more now than we did then.
"The facts we did gather, you see, indicated that whatever we were receiving must be definite signals, must originate within some sort of intelligence. Some intelligence, you see, that would know just when and where to send them. But there was the problem of distance. Just suppose for a moment that they were coming from the Great Nebula. It takes light almost a billion years to reach us from the Nebula. While it is very probable that the speed of light can be far exceeded, there is little reason to believe at present than anything could be so much faster than light that signaling could be practical across such enormous space. Unless, of course, the matter of time were mixed up a little, and when you get into that you have a problem that takes more than just a master mind. There was just one thing that would seem a probable answer… that if the signals were being sent from many light years distant, they were being routed through something other than all that space. Perhaps through another continuum of space-time, through what you might call, for the want of a better term, the fourth dimension.”
"Doctor," said Herb, "you got me all balled up.”
Dr. Kingsley's chuckle rumbled through the room.