Now, poised there miles above the great air-city, which was itself poised high over the earth, our great triangle of ships hung like so many birds of prey for the moment. Beside me Macklin was gazing downward as tensely as myself, Hilliard beneath with our waiting gunners, while under my fingers lay the four rows of white buttons the pressing of each of which would release from our cruiser's bomb-slots a portion of the immense heat-bombs they held. Poising there in that tense moment the whole scene was imprinted unforgettably upon my brain--the gloom of night about us, the vast radiant circle of the colossal air-city beneath, the patrols swarming over it, the throngs that filled its streets, excited no doubt over the beginning of the long-expected war that was to annihilate the American Federation. Then I spoke one sharp order into the distance-phone and instantly with all our motors droning suddenly loud our great triangle of cruisers was diving straight downward upon the radiant air-city beneath! Down we shot with dizzying speed in that mighty swoop, down with my own cruiser flashing foremost and with all our others close behind it, down through miles of space in a flashing moment, it seemed, until our hurtling wedge of ships had crashed down into and through the swarming patrols above the city, had driven like light down through them toward the eastern mass of military structures and cruisers that was our goal! From all of our ships no single gun sounded nor from the patrol-cruisers through which we dropped, so stunned were they by our great crash downward through them. It was as though for that moment a tense silence had been enforced upon all the world, a silence broken only by the drone of our motors as we plunged. Then I was aware in a swift succession of flashing impressions of the white-lit city's towers and buildings rushing like light up toward us, of the great square military arsenals and buildings with the gleaming ranks of cruisers about them, just beneath us. Then as we plunged to within a half-mile of those buildings and cruisers my own foremost-flashing cruiser curved forward and, as our down-plunging ships levelled out behind it, I pressed swiftly a row of the buttons beneath my fingers. The next moment our cruiser was swaying from side to side as it rushed on, and down from it and from all the massed ships behind and about us were plunging thousands of giant, cylindrical heat-bombs!