During all this telling Kinnison had been searching mind after mind; inspecting each minutely for the telltale marks of mental surgery. He found none. No hypnosis. This thing had happened, exactly as they told it. Now, convinced of that fact, his eyes clouded with foreboding, he sent out his sense of perception and studied the vault itself. Millimeter by cubic millimeter he scanned the innermost details of its massive structure—the concrete, the neo-carballoy, the steel, the heat-conductors and the closely-spaced gas cells. He traced the intricate wiring of the networks of alarms. Everything was sound. Everything functioned. Nothing had been disturbed.
The sun of this system, although rather on the small side, was intensely hot; this planet, Four, was a long way out. Pretty close to Cardynge's limit ... or the Boskonians had improved their technique—tightened up their controls. A tube, of course ... for all the tea in China it had to be a tube. Kinnison sagged; for the first time in his life the indomitable Gray Lensman showed his years and more.
"I know that it happened." His voice was grim, quiet, as he spoke to the still protesting men. "I also know how it was done, but that's all."
"HOW?" they demanded, practically in one voice.
"A hyperspatial tube," and Kinnison went on to explain, as well as he could, the functioning of a thing which could not be grasped intrinsically by any nonmathematical three-dimensional mind.
"But what can we or you or anybody else do about it?" the treasurer asked, numbly.
"Nothing whatever." Kinnison's voice was flat. "When it's gone, it's gone. Where does the light go when a lamp goes out? No more trace. No more way—no way whatever—of tracing it. Hundreds of millions of planets in this galaxy, as many in the Second. Millions and millions of galaxies. All that in one Universe—our own universe. And there are an infinite number—too many to be expressed, let alone to be grasped—of universes, side by side, like pages in a book except thinner, in the hyperdimension. So you can figure out for yourselves the chances of ever finding either President Renwood or the Boskonians who took him—so close to zero as to be indistinguishable from zero absolute."
The treasurer was crushed. "Do you mean to say that there is no protection at all from this thing? That they can keep on doing away with us just as they please? The nation is going mad, sir, day by day—one more such occurrence and we will be a planet of maniacs."
"Oh, no—I didn't say that." The tension lightened. "Just that we can't do anything about the president and his aides. The tube can be detected while it is in place, and anyone coming through it can be shot as soon as he can be seen. What you need is a couple of Rigellian Lensmen, or Ordoviks. I'll see to it that you get them. I don't think, with them here, that they will even try to repeat." He did not add what he knew somberly to be a fact, that the enemy would go elsewhere, to some other planet not protected by a Lensman able to perceive the intangible structure of a sphere of pure force.