"For it was recognized from the very beginning that this was no spaceship from anywhere in the solar system. Every child knew that only two spaceships had ever been built on Earth, and none at all on any of the other planets and satellites; and of those two, one had been destroyed when it was pulled into the sun, and the other had just been reported safely arrived on Mars. Then, the ones made here had a shell of a strong aluminum alloy, while this one, as you see, is of an unknown greenish metal.
"The ship appeared and just sat here. No one emerged, and there was no sign that it contained life of any kind. That, as much as any single thing, caused excitement to skyrocket. Who, or what, was inside? Were the visitors hostile or friendly? Where did the ship come from? How did it arrive so suddenly right on this spot without dropping from the sky?
"For two days the ship rested here, just as you now see it, without motion or sign that it contained life. Long before the end of that time the scientists had explained that it was not so much a spaceship as a space-time traveler, because only such a ship could arrive as this one did-materialize. They pointed out that such a traveler, while theoretically understandable to us Earthmen, was far beyond attempt at our present state of knowledge, and that this one, activated by relativity principles, might well have come from the far comer of the Universe, from a distance which light itself would require millions of years to cross.
"When this opinion was disseminated, public tension grew until it was almost intolerable. Where had the traveler come from? Who were its occupants? Why had they come to Earth? Above all, why did they not show themselves? Were they perhaps preparing some terrible weapon of destruction?
"And where was the ship's entrance port? Men who dared go look reported that none could be found. No slightest break or crack marred the perfect smoothness of the ship's curving ovoid surface. And a delegation of high-ranking officials who visited the ship could not, by knocking, elicit from its occupants any sign that they had been heard.
"At last, after exactly two days, in full view of tens of thousands of persons assembled and standing well back, and under the muzzles of scores of the army's most powerful guns and ray projectors, an opening appeared in the wall of the ship, and a ramp slid down, and out stepped a man, godlike in appearance and human in form, closely followed by a giant robot. And when they touched the ground the ramp slid back and the entrance closed as before."
"It was immediately apparent to all the assembled thousands that the stranger was friendly. The first thing he did was to raise his right arm high in the universal gesture of peace; but it was not that which impressed those nearest so much as the expression on his face, which radiated kindness, wisdom, the purest nobility. In his delicately tinted robe he looked like a benign god.
"At once, waiting for this appearance, a large committee of high-ranking government officials and army officers advanced to greet the visitor. With graciousness and dignity the man pointed to himself, then to his robot companion, and said in perfect English with a peculiar accent, 'I am Klaatu,' or a name that sounded like that, 'and this is Gnut. ' The names were not well understood at the time, but the sight-and-sound film of the television men caught them and they became known to everyone subsequently.
"And then occurred the thing which shall always be to the shame of the human race. From a treetop a hundred yards away came a wink of violet light and Klaatu fell. The assembled multitude stood for a moment stunned, not comprehending what had happened. Gnut, a little behind his master and to one side, slowly turned his body a little toward him, moved his head twice, and stood still, in exactly the position you now see him.
"Then followed pandemonium. The police pulled the slayer of Klaatu out of the tree. They found him mentally unbalanced; he kept crying that the devil had come to kill everyone on Earth. He was taken away, and Klaatu, although obviously dead, was rushed to the nearest hospital to see if anything could be done to revive him. Confused and frightened crowds milled about the Capitol grounds the rest of the afternoon and much of that night. The ship remained as silent and motionless as before. And Gnut, too, never moved from the position he had come to rest in.
"Gnut never moved again. He remained exactly as you see him all that night and for the ensuing days. When the mausoleum in the Tidal Basin was built, Klaatu's burial services took place where you are standing now, attended by the highest functionaries of all the great countries of the world. It was not only the most appropriate but the safest thing to do, for if there should be other living creatures in the traveler, as seemed possible at that time, they had to be impressed by the sincere sorrow of us Earthmen at what had happened. If Gnut was still alive, or perhaps I had better say functionable, there was no sign. He stood as you see him during the entire ceremony. He stood so while his master was floated out to the mausoleum and given to the centuries with the tragically short sight-and-sound record of his historic visit. And he stood so afterward, day after day, night after night, in fair weather and in rain, never moving or showing by any slightest sign that he was aware of what had gone on.
"After the interment, this wing was built out from the museum to cover the traveler and Gnut. Nothing else could very well have been done, it was learned, for both Gnut and the ship were far too heavy to be moved safely by any means at hand.
"You have heard about the efforts of our metallurgists since then to break into the ship, and of their complete failure. Behind the ship now, as you can see from either end, a partitioned workroom has been set up where the attempt still goes on. So far its wonderful greenish metal has proved inviolable. Not only are they unable to get in, but they cannot even find the exact place from which Klaatu and Gnut emerged. The chalk marks you see are the best approximation.
"Many people have feared that Gnut was only temporarily deranged, and that on return to function might be dangerous, so the scientist have completely destroyed all chance of that. The greenish metal of which he is made seemed to be. the same as that of the ship and could no more be attacked, they found, nor could they find any way to penetrate to his internals; but they had other means. They set electrical currents of tremendous voltages and amperages through him. They applied terrific heat to all parts of his metal shell. They immersed him for days in gases and acids and strongly corroding solutions, and they have bombarded him with every known kind of ray. You need have no fear of him now. He cannot possibly have retained the ability to function in any way.
"But-a word of caution. The officials of the government know that visitors will not show any disrespect in this building. It may be that the unknown and unthinkably powerful civilization from which Klaatu and Gnut came may send other emissaries to see what happened to them. Whether or not they do, not one of us must be found amiss in our attitude. None of us could very well anticipate what happened, and we all are immeasurably sorry, but we are still in a sense responsible, and must do what we can to avoid possible retaliations.
"You will be allowed to remain five minutes longer, and then, when the gong sounds, you will please leave promptly. The robot attendants along the wall will answer any questions you may have.
"Look well, for before you stand stark symbols of the achievement, mystery, and frailty of the human race."
The recorded voice ceased speaking. Cliff, carefully moving his cramped limbs, broke out in a wide smile. If they knew what he knew!
For his photographs told a slightly different story from that of the lecturer. In yesterday's a line of the figured floor showed clearly at the outer edge of the robot's near foot; in today's, that line was covered. Gnut had moved!