But the World Congress wasted no time looking backward. Although between Juan Fernandez and the next land westward the distance was three times greater than between it and South America, the Congress seized upon the only island to which it could possibly spread, Sala-y-Gomez, and made of it a veritable fortress against the Grass. Not only did ships guard its waters by day and keep it brilliantly lit with their searchlights at night, but swift pursuitplanes bristling with machineguns brought down every bird in flight within a thousand miles. The island itself was sown with salt a halfmile thick after being mined with enough explosives to blow it into the sea. The world, or that portion of it which had not fully accepted all the implications of the doctrine of submission, watched eagerly. But the ships patrolled an empty sea, the searchlights reflected only the glittering saline crystals, the migrant birds never reached their destination. The outpost held, impregnable. Again everyone breathed easier. Five hundred miles beyond this focalpoint, its convict settlement long abandoned, was Easter Island, Rapa Nui, home of the great monoliths whose origin had ever been a puzzle. Erect or supine, these colossal statues were strewn all over the island. Anthropologists and archaeologists still came to give them cursory inspection and it was on such a visit an unmistakable clump of Grass was found. Immediately the ships were rushed from Sala-y-Gomez, planes carrying tons of salt took off from Australia and the whole machinery of the World Congress was swiftly put in operation. But it was too late; Easter Island was swamped, uninhabited Ducie went next, and Pitcairn, home of the descendants of the _Bounty_ mutineers followed before even the slightest precautions could be taken. The Grass was jumping gaps of thousands of miles in a breathless steeplechase. On Pitcairn there was nothing to do but rescue the inhabitants. Vessels stood by to carry them and their livestock off. The palebrown men and women left for the most part docilely, but the last Adams and the last McCoy refused to go. "Once before, our people were forced to leave Pitcairn and found nothing but unhappiness. We will stay on the island to which our fathers brought their wives." There was no stopping the Grass now, even if the means had been to hand. The Gambiers, the Tuamotus and the Marquesas were swallowed up. Tahiti, dwellingplace of beautiful if syphilitic women, disappeared under a green blanket, as did the Cook Islands, Samoa and the Fijis. The Grass jumped southward to a foothold in New Zealand and northward into Micronesia. Panic infected the Australians and a mass migration to the central part of the country was begun, but with little hope the surrounding deserts would offer any effective barrier.