The Skylark of Valeron

by E. E. Smith

"You can't move a three-dimensional body that fast, as we found out when the force was coming on," Seaton replied. "But I don't think that we are ordinary matter any more, and apparently our three-dimensional laws no longer govern, now that we are in hyperspace. Inertia is based upon time, of course, so our motion might be all right, even at that. Mechanics seem to be different here, though, and, while we seem solid enough, we certainly aren't matter at all in the three-dimensional sense of the term, as we used it back where we came from. But it's all over my head like a circus tent—I don't know any more about most of this stuff than you do. I thought, of course—if I thought at all, which I doubt—that we'd go through hyperspace in an instant of time, without seeing it or feeling it in any way, since a three-dimensional body cannot exist, of course, in four-dimensional space. How did we get this way, Mart? Is this space coexistent with ours or not?"

"I believe that it is." Crane, the methodical, had been thinking deeply, considering every phase of their peculiar predicament. "Coexistent, but different in all its attributes and properties. Since we may be said to be experiencing two different time rates simultaneously, we cannot even guess at what our velocity relation is, in either system of coördinates. As to what happened, that is now quite clear. Since a three-dimensional object cannot exist in hyperspace, it of course cannot be thrown or forced through hyperspace.

"In order to enter this region, our vessel and everything in it had to acquire the property of extension in another dimension. Your forces, calculated to rotate us here, in reality forced us to assume that extra extension, which process automatically moved us from the space in which we could no longer exist into the only one in which it is possible for us to exist. When that force is no longer operative, our extension into the fourth dimension will vanish and we shall as automatically return to our customary three-dimensional space, but probably not to our original location in that space. Is that the way you understand it?"

"That's a lot better than I understood it, and it's absolutely right, too. Thanks, old thinker! And I certainly hope we don't land back there where we took off from—that's why we left, because we wanted to get away from there. The farther the better," Seaton laughed. "Just so we don't get so far away that the whole Galaxy is out of range of the object-compasses we've got focused on it. We'd be lost for fair, then."

"That is a possibility, of course." Crane took the light utterance far more seriously than did Seaton. "Indeed, if the two time rates are sufficiently different, it becomes a probability. However, there is another matter which I think is of more immediate concern. It occurred to me, when I saw you take that pinch of tobacco without opening the tin, that everywhere we have gone, even in intergalactic space, we have found life, some friendly, some inimical. There is no real reason to suppose that hyperspace is devoid of animate and intelligent life."

"Oh, Martin!" Margaret shuddered. "Life! Here? In this horrible, this utterly impossible place?"

"Certainly, dearest," he replied gravely. "It all goes back to the conversation we had long ago, during the first trip of the old Skylark. Remember? Life need not be comprehensible to us to exist—compared to what we do not know and what we can never either know or understand, our knowledge is infinitesimal."

She did not reply and he spoke again to Seaton:

"It would seem to be almost a certainty that four-dimensional life does in fact exist. Postulating its existence, the possibility of an encounter cannot be denied. Such beings could of course enter this vessel as easily as your fingers entered that tobacco can. The point of these remarks is this—would we not be at a serious disadvantage? Would they not have fourth-dimensional shields or walls about which we three-dimensional intelligences would know nothing?"

"Sweet spirits of niter!" Seaton exclaimed. "Never thought of that at all, Mart. Don't see how they could—and yet it does stand to reason that they'd have some way of locking up their horses so they couldn't run away, or so that nobody else could steal them. We'll have to do a job of thinking on that, big fellow, and we'd better start right now. Come on—let's get busy!"