Allan felt nauseated as he imagined a fleeting picture of the many-leveled city, of its mist-darkened streets with swarming myriads of slumped bodies clogging the conveyor belts that still moved because no hand was left to shut them off; of women and children, and aged or crippled men strewn in tortured, horrible attitudes in all the roof-parks, in their homes, in every nook and cranny of the murdered city. He looked beneath his drifting descent and saw roads that were rivers, alive with every manner of fleeing conveyance, and he groaned, knowing that in moments the pursuing ships would send down their lethal mist to put an end to that futile flight.
Sugar Loaf Mountain rose toward him. At its very summit was a clearing among the trees, and, incongruously motionless in that world where every one was rushing from inescapable death, a man stood calmly there, gazing up at him. Allan screamed down to him! "Run! You fool. Run or the gas will get you!"
Of course the man could not hear that cry, but one tiny arm rose and pointed south. Allan followed the direction of the gesture and saw a black plane veering toward him. Then orange flared from it, though it was distant, and a wave of intolerable heat enveloped him. Something cried within him: "Too far—he's too far off to kill me with his beam!" Then he knew no more.
From New York, from devastated San Francisco, from Rio, from Buenos Aires, from fifty other desolated points along the seaboards of the Americas, the black fleets swept along the coasts and inland, vomiting their yellow death till all the continents were blanketed with life-destroying gas. And in Europe and Australasia the destroying hordes, having smashed the proud defenses of the coastlines, engaged in the same pursuit, till in one short week all the lands of the Western Allies were swept clear of life. Then the Eastern ships turned homeward, to wait until the vapor they had strewn had lost its virulence, and the teeming masses of the East might take possession of the half world the ebony-painted destroyers had conquered. The black fliers turned homeward, but there was no homeland left for them to seek!
For though the defense fleets of the Western Coalition had been everywhere beaten, their attack squadrons had been everywhere successful. All Asia and Africa lay under a pall of milky emerald gas as toxic, as blasting, as the Easterners' yellow.
And the Westerners were returning too!
In their teleview screens the commanders of the black swarms, and of the white thousands, sought their home ports, and saw the world to be a haze-covered sphere where not even a fly could live. Then, as if by common accord, the white ships and the black sped across lifeless hemispheres to meet in mid-air over the long green swells of the Pacific. They met, and on the instant they were at each others' throats like two packs of wild dogs, killing, killing, killing till they themselves were killed. No quarter was asked in that fight, and none given. No hope of victory was there, nor fear of defeat. Better swift death in the high passion of combat, than slow, hopeless drifting over a dead world.
But there was one black ship that slunk out of that mass suicide of man's last remnant. Within its long hulk three motionless forms lay in a welter of blood that smeared their officers' badges, and a dozen gibbering men labored at the controls of their craft. The long black shadows came at last to veil an empty sky, and a sea whereon there was drifting wreckage but not one sign of any life. And as far to the north a shadowed airship sped athwart the moon, searching for one spot, one tiny patch of solid ground, that was free from the dread gas.