For the faked threat of a Martian invasion was producing all the effects he could ever have anticipated, and more, as the scenes he had just been witnessing proved. They stuck in his mind, those scenes. The air around the Blue Lorraine aswarm with fliers from bullet-swift couriers to meddlesome schoolchildren. Streams of machine-units and various materials and supplies going out on subtronic currents for distribution to selected points in the surrounding countryside, for it had early become apparent that the skylons were exceedingly vulnerable to attack from space--all Earth's eggs in a few thousand baskets. Engineers busy around the Blue Lorraine's frosty summit, setting up energy-projectors and other improvised subtronic artillery--for although the skylons were vulnerable, they were the proud symbols and beloved homes of civilization and would be defended to the last. All eyes craned apprehensively upward as a thundering spaceship burst through the blue sky, then lowered in ruefully humorous relief as it became obvious that it was, of course, no alien invader, but one of Earth's own ships headed for the nearby yards to be fitted with subtronic weapons. All eyes turned momentarily to the west, where defensive screens were being tried out, to watch a vast iridescent dome leap momentarily into being and a circle of woodland puff into smoke. Excited eyes, all of them, as ready to flash with humor as to betray shock, anxiety, or fear. Eyes that were seven-eighths "There probably won't be any invasion" and one-eighth "There will be." Eyes that made Clawly proud of mankind, but that also awakened sickening doubts as to the wisdom of his trickery. And to think that this sort of thing was going on all over the world. The use of subtronic power in transport and fabrication made possible a swiftness in preparation never before known in Earth's history. Organization was a weak point, the Earth being geared for the leisurely existence of peace and individual freedom, but various local agencies were taking over while the World Executive Committee created the framework of a centralized military authority. Confusedly perhaps, and a little bunglingly, but eagerly, wholeheartedly, and above all swiftly, Earth was arming to meet the threat. It was all so much _bigger_ than anyone could have anticipated, Clawly told himself for the hundredth time, unconsciously increasing his already rapid pace as he neared Oktav's office. He had started it all, but now it was out of his hands. He could only wait and hope that, when the real invasion came, across time rather than space, the present preparations would prove useful to Earth's bewildered defenders. In any case, a few hours would tell the story, for this was the third day.