He did indeed think we were of a human type very primitive. The men of science who had seen us coming out of infinite smallness beneath their microscope, had remarked on it. The small protuberance in the corner of our eyes, the remains of the beasts’ third eyelid, the shape of our heads, our almost pointed ears—I noticed that his own were very nearly circular—our harsh voices, our thick, stocky, muscular bodies were indications that they remarked on. We discussed it. But Jim interrupted. “How did your men of science know that we were coming out of that piece of gray rock?” It had been partly by chance. The fragment of rock had been a portion of the interior wall of a room wherein scientific experiments were being made. Ren used our words, “Experiments in physics and chemistry.” One of the scientists had found himself receiving strange thought-waves. Ren described them. They were Dolores’ thoughts. The scientist traced them with measuring instruments to the wall of the room, but could be no more exact than that. Then, later, from a tiny protuberance of the wall, a glow was observed. It proved to be a sudden radio-activity; this protuberance of gray stone had become radiant. Electrons were streaming off from it. The scientists chipped it off the huge block of stone of which it was so small a part, and put it under a microscope. It was violently radio-active. And from it they observed a stream of red. “Our Beta ray,” Dr. Weatherby exclaimed. “Our voyage, the disturbance we set up made the substance give off its electrons.” “Yes,” nodded Ren. “They think so. They examined it beneath the lens, and after a little while they saw you.” Alice said, “My sister was getting thoughts from here.” She told him about the mysterious young man and girl, threatened by some unknown danger, a strange cliff, the young couple at bay upon a ledge, the valley beneath them filled with a nameless horror. * * * * * Ren’s face clouded. “Yes. We have had thoughts from them. But now the thoughts have stopped. Those two are the children of our ruler. You would call him our king? They are the young prince and his sister, the princess. “A year ago they both disappeared. A year, that is ten times daylight and darkness. We did not know why they went, or where. Run away, or perhaps stolen from us, for our king is very old and of health quite bad. Soon the prince will be king. “But they disappeared. There is a very . . . a horrible savage people in the forests beyond the great caves. You spoke it truly, my lady Alice. They are a nameless horror; we do not often speak of things like that. We fear our prince and princess may be there. “And here at home there is a growing trouble as well. Our women, the young girls particularly, are very restless and aggrieved. They do not like their lot in life. Some already are in rebellion.