Lanfierre sat stiffly behind the wheel, affronted. The cynical MacBride couldn't really appreciate fine aberrations. In some ways MacBride was a barbarian. Lanfierre had held out on Fownes for months. He had even contrived to engage him in conversation once, a pleasantly absurd, irrational little chat that titillated him for weeks. It was only with the greatest reluctance that he finally mentioned Fownes to MacBride. After years of searching for differences Lanfierre had seen how extraordinarily repetitious people were, echoes really, dimly resounding echoes, each believing itself whole and separate. They spoke in an incessant chatter of cliches, and their actions were unbelievably trite. Then a fine robust freak came along and the others--the echoes--refused to believe it. The lieutenant was probably on the point of suggesting a vacation. "Why don't you take a vacation?" Lieutenant MacBride suggested. "It's like this, MacBride. Do you know what a wind is? A breeze? A zephyr?" "I've heard some." "They say there are mountain-tops where winds blow all the time. Strong winds, MacBride. Winds like you and I can't imagine. And if there was a house sitting on such a mountain and if winds _did_ blow, it would shake exactly the way that one does. Sometimes I get the feeling the whole place is going to slide off its foundation and go sailing down the avenue." * * * * * Lieutenant MacBride pursed his lips. "I'll tell you something else," Lanfierre went on. "The _windows_ all close at the same time. You'll be watching and all of a sudden every single window in the place will drop to its sill." Lanfierre leaned back in the seat, his eyes still on the house. "Sometimes I think there's a whole crowd of people in there waiting for a signal--as if they all had something important to say but had to close the windows first so no one could hear. Why else close the windows in a domed city? And then as soon as the place is buttoned up they all explode into conversation--and that's why the house shakes." MacBride whistled. "No, I don't need a vacation." A falling piece of glass dissolved into a puff of gossamer against the windshield. Lanfierre started and bumped his knee on the steering wheel. "No, you don't need a rest," MacBride said. "You're starting to see flying houses, hear loud babbling voices. You've got winds in your brain, Lanfierre, breezes of fatigue, zephyrs of irrationality--" At that moment, all at once, every last window in the house slammed shut. The street was deserted and quiet, not a movement, not a sound. MacBride and Lanfierre both leaned forward, as if waiting for the ghostly babble of voices to commence. The house began to shake. It rocked from side to side, it pitched forward and back, it yawed and dipped and twisted, straining at the mooring of its foundation. The house could have been preparing to take off and sail down the....