"I didn't mean to pry. It just didn't seem to be something you could do. Do you think we could spare some air, Mr. Secretary?" "I'll have to ask the science boys about that one," Frank Fogarty said. "Meanwhile it's okay with Australia on the desert. But your Gizl friends have to agree to relocate the aborigines from that tract, and they must take every last rabbit or it's no deal." "Agreed," the Master said with a smile. "But please ask their stockmen to hold their fire. My friends only _look_ like kangaroos." * * * * * As Don and the Master were making arrangements for Superior to touch down so its people could be transferred to Earth, a blaze of light stabbed down from the sky. Through the window they saw the vertiplane settling slowly to the campus. "It sure beats a blimp," Senator Thebold said in admiration. Professor Garet got up to look. "It's the press," he said to his wife. "You might as well invite them in. I hope we have enough tea." The vertiplane's door opened and the first wave of reporters spilled out. XIII As Superior headed back across the Atlantic, the Earth-people were given a farewell tour. For the first time they had an authorized look at the underground domain of the Gizls, which they reached through the tunnel that led below from under Cavalier's grandstand. The observation room which Don and Jen Jervis had found was connected by a hidden elevator to a vast main chamber. A control console formed the entire wall of one end of it. Half a dozen Gizls stood at the base of the console. From time to time one of them would launch himself upward with his powerful legs, grab a protruding rung, make an adjustment, then drop lightly back to the floor. Don and Alis stood for a moment watching Professor Garet, who was tugging at his beard as he became aware of the magnitude of the operation which drove Superior through the skies and was soon to take it across space to the asteroid belt. "Poor Father," Alis whispered to Don. "Magnology in action, after all these years--and he didn't have a thing to do with it." "Is that why he wants to go with the Master?" "I imagine so. If he stayed on Earth he'd have nothing. He's too old to start again. It's kind of them to take him--and Mother. In a way, I suppose, his going is justification for his years of work. He'll at least be close to the things he might have developed in the right circumstances." "He certainly won't be lonely," Don said. "Have you noticed the rush to emigrate? Cheeky McFerson's decided to stick with his bubble gum factory. He says the Gizls are a ready-made market. He saw one of them cram five Super-Bubs into his mouth, at one time. That's twenty-five cents right there." Alis giggled. "And half of the student body of Cavalier wants to go. You'd think they'd be disillusioned with Father, but they're not. I guess they had to be crazy to enroll in the first place."