A faint vibration became noticeable; they suddenly felt very heavy; and to the accompaniment of a low but rising hum they saw one wall of their room begin to glow with a beautiful cherry color. Although they had been too stupefied to try to speak, this spurred their tired bodies, and they dragged themselves over to it. They found the wall to be of some kind of hard crystal; it was the outer shell of the sphere; and it now gleamed redly transparent. * * * * * Far out and down the men saw a great convex surface on which lay narrow ribbons of silver, winding veinlike through dark areas that were in some places lit by little clusters of twinkling lights. As they watched, the distances on the surface shrank in on themselves; they could see the outline of a great circle. The sight stimulated the exhausted men. In a hushed and awestruck voice, Jim Wilson broke the silence. "We've been kidnaped," he said. "Being taken God knows where, out among the stars...." He was getting the sky-ride he had asked for. Clee smiled faintly, and was going to remind him of this; but he was too tired to make the effort. He only looked at the tremendous scene below: at the Earth they knew so well, with its familiar streets, comfortable fireplaces, the faces of those they loved and those others who were their friends.... The Earth soon became a ball--a globe such as he had used at school, showing clearly the outline of the continents and oceans. And little by little it dwindled, until it was only a ghostly shape far out in nothingness.... A little later, had the two Earthlings not been deep in sleep, they might have seen enter a strange-looking man clad in odd garments--a man whose great, bulging head was quite bald, and whose wrinkled, leprous-white face wore an expression of unutterable wisdom and majesty. In his hands he carried a strange piece of apparatus which he held to Jim's wrist while it emitted a coarse vibratory hum that whined slowly up in pitch until it passed the range of hearing. He did the same thing to Clee, and then he quietly left. But the two Earthlings knew nothing of this. Limp on the floor, oblivious to everything, they slept.... * * * * * Some hours later found the kidnapped men well recovered and sitting on the floor of their cell talking over their situation. As usual, Wilson was thinking out loud. "What can they be?--or who?" he asked, frowning with his thought. "They can't be from Earth, for no one there could invent such a ship as this and keep it a secret; and even if someone had, he could never have done the equally astounding thing of inventing a way to render living bodies invisible. I doubt if the thing that caught us was human, by what I was able to feel in my short struggle with it. There was something that might have been a hand; but the strength and the weight of its body was enormous!"