end, a giant step toward his classification with the dodo, the auk, the sabertooth tiger and the passenger pigeon. One large eastern city in the United States presented a typical picture during that hour of cataclysm. In the first fifteen minutes its canopy of fighter planes was blown out of the sky; the weapons they carried, some of them atomic, were as effective against the green saucers as sling-shots on platinum. By noon the air had begun to fill with billowing, drifting masses of smoke-yellow vapor, reeking of sulphur and molten metal and burnt flesh and death. Those who had been unlucky enough to live through the attack thus far were now so nauseated by the odors of mankind's collapse that they stumbled among the shattering streets, retching and vomiting, as eager to escape the yellow hell-cloud's stink as they were to avoid the crumbling steel and cement. At the end of an hour, while the greater part of the two hundred and twenty-eight saucers continued to raze the city, one alien ship made a landing on a leveled field of the suburbs. Its entry port jawed open, somewhat like a huge clamshell parting, and a single green man emerged. He was six feet nine and his eye measured a good four inches across. He carried a flag of red, white and green, on which the device of a circle and three triangles which he wore on his left breast was repeated. He strode away from the ship, gazing about with satisfaction. Some distance off lay the wreckage of a broadcasting truck; its warped, ruined loudspeakers yawned over the body of an Army sergeant, who still held in a firm grip the microphone into which he had been talking when the world was scuttled around him. On the side of the demolished truck there remained a sign which read DON'T PANIC—THEY'RE FRIENDLY! There was blood on the sergeant's mouth and forehead and he had bled from the nose. The blood was almost wholly dry now. His eyes were open. The green conqueror looked at him and grinned. It remains one of the most curious facts of the matter that both mankind and the bird-footed beasts of the green horde expressed amusement and pleasure by turning up the corners of the mouth.... The alien peered all about him, shading his eye with his right hand. Nothing moved anywhere except the skimming saucers and the collapsing city. He stepped forward and lifted his pennon high, to plant its ten-foot staff in the dead body of the earthman. Holding it up, he spoke a few words in his own language, a guttural cracking speech which ranged