Sergeant Walpole was in motion before the second explosion came. He was diving off the veranda of Post Number Fourteen. He saw someone else coming through a window. He had a photographic glimpse of one of his men emerging through a doorway. Then he struck earth and began to run. Like everybody else in America, he knew what the explosions and the screamings meant. But he had covered no more than fifty yards when the third bomb fell from that plane so far aloft that it was not even a mote in the sky. Up there the sky was not even blue, but a dull leaden gray because of the thinness of the atmosphere yet above it. The men in that high-flight bomber could see the ground only as a mass of vaguely blending colors. They were aiming their bombs by filtered light, through telescopes which used infra-red rays only, as aerial cameras did back in the 1920's. And they were sighting their eggs with beautifully exact knowledge of their velocity and height. By the time the bombs had dropped eight miles they were traveling faster than the sound of their coming. The first two had wiped out Posts Thirteen and Fifteen. The third made no sound before it landed, except to an observer at a distance. Sergeant Walpole heard neither the scream of fall nor the sound of its explosion. * * * * * He was running madly, and suddenly the earth bucked violently beneath his feet, and he had a momentary sensation of things flying madly by over his head, and then he knew nothing at all for a very long time. Then his head ached horribly and someone was popping at something valorously with a rifle, and he heard the nasty sharp explosions of the hexynitrate bullets which have remodeled older ideas of warfare, and Sergeant Walpole was aware of an urgent necessity to do something, but he could not at all imagine what it was. Then a shell went off, the earth-concussion banged his nose against the sand, and the rifle-fire stopped. "For Gawd's sake!" said Sergeant Walpole dizzily. He staggered to his feet and looked behind him. Where the cottage had been there was a hole. Quite a large hole. It was probably a hundred yards across and all of twenty deep, but sea-water was seeping in to fill it through the sand. Its edge was forty or fifty feet from where he stood. He had been knocked down by the heaving earth, and the sand and mud blown out of the crater had gone clean over him. Twenty feet back, the top part of his body would have been cut neatly off by the blast. As it was.... * * * * *