Tiny moving figures on the ground. Four of them, small dark blobs against the white sand. They were about a hundred feet away from where Martt and Zee were crouching. They had come out of the woods evidently, and were crossing this patch of white sand, heading for the water. Martt blinked and rubbed his eyes, staring at them. They moved in tiny leaps, bounding soundlessly over the sand. Each of them a foot long perhaps. Strange in shape; animal or human, he could not say. "What are they, Zee?" But she did not answer. Her little body was shrinking against him; he could feel her shudder. The figures seemed long and thin, horizontal to the ground, with something sticking upright like a tower from the middle of them. Martt gasped. He had thought them four animals, with humps like upright towers. They were not. He saw them now as running dogs with horns, each with a tiny human figure on its back. And he gasped again. They were growing larger! They crossed the sand in bounds and momentarily stopped. Already they were fully half normal size. Four horned animals that might have been grotesque dogs, or horses. Saddled; and mounted upon them, a heavy-set, half-naked man; a strange, shapeless woman--and two girls! Normal size now! No, already they were larger! Growing rapidly larger! Frannie and Leela! Martt half started to his feet. He opened his mouth to shout impulsively, but Zee drew him back and silenced him. The four animals were taking to the water. Swimming with heads stretched out. Martt could see Frannie and Leela bending forward, each clutching the horn of her mount. In single file the animals swam swiftly out into the starlit lake. They did not seem to be growing any further. Twice normal size perhaps. Soon they were four dark blobs on the shining water. Visually seeming smaller by distance. V-shaped lines of silver phosphorescence streamed out in the water behind them with their swift forward progress. And presently they were vanished. * * * * * Martt and Zee stood up. They could not explain it. They tried to, but could not. But the main facts were clear. That had been a man and woman giant, and four of their animals. They had captured Frannie and Leela. Had made the girls and the animals change size like themselves. They had all, just now, been very small in size. To escape observation coming across the island to its shore, Martt concluded. He said, "We must get to Brett--tell him about this. And then--go after them----" Again they started running along the shore, intending to turn at the lagoon-mouth for the arcade. Martt's thoughts flew swift as his legs. Leela and Frannie captured . . . they must be rescued . . . then all of them would get into the vehicle and go to Earth--get out of this danger. . . . Zee was saying, "That is Reaf, off that way where they went."