"I fear that you are underestimating the intelligence of our foes," replied the coördinator. "In all probability they know exactly what we are doing, and were their present space ships superior to yours we would have ceased to exist ere this. It is practically certain that they will attack as soon as they have constructed craft of sufficient power to insure success. In fact, they may be able to perfect their attack before we can complete our defense, but that is a chance which we must take. "In that connection, two facts give us grounds for optimism. First, theirs is an undertaking of greater magnitude than ours, since they must of necessity be mobile and operative at a great distance from their base, whereas we are stationary and at home. Second, we started our project before they began theirs. This second fact must be allowed but little weight, however, for they may well be more efficient than we are in the construction of engines of war. "The exploring vessel is unimportant. She may or may not call for her load of ore; she may or may not join in the attack which is now inevitable. One thing only is certain--we must and we will drive this program through to completion before she is due to dock at the mine. Everything else must be subordinated to the task; we must devote to it every iota of our mental, physical, and mechanical power. Each of you knows his part. The meeting is adjourned _sine die_." * * * * * There ensued a world-wide activity unparalleled in the annals of the planet. During the years immediately preceding the cataclysm there had been hustle and bustle, misdirected effort, wasted energy, turmoil and confusion; and a certain measure of success had been wrested out of chaos only by the ability of a handful of men to think clearly and straight. Now, however, Valeron was facing a crisis infinitely more grave, for she had but days instead of years in which to prepare to meet it. But now, on the other hand, instead of possessing only a few men of vision, who had found it practically impossible either to direct or to control an out-and-out rabble of ignorant, muddled, and panic-stricken incompetents, she had a population composed entirely of clear thinkers who, requiring very little direction and no control at all, were able and eager to work together whole-heartedly for the common good. Thus, while the city and its environs now seethed with activity, there was no confusion or disorder. Wherever there was room for a man to work, a man was working, and the workers were kept supplied with materials and with mechanisms. There were no mistakes, no delays, no friction. Each man knew his task and its relation to the whole, and performed it with a smoothly efficient speed born of a racial training in coöperation and coördination impossible to any member of a race of lesser mental attainments.