《The Borderlands of Sol 》作者：- Larry Niven【EPUB】

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The organ bank problem remained an important social factor for most of the colony worlds. On Jinx it was unimportant; there was too much empty land for felons to flee to. On Plateau it created a hideous social stratification, vestiges of which re mained long after ramrobot packages ended the organ bank problem itself. Sol had its own problems. The Kzinti had dis covered and conquered Wunderland and were on their way to Earth. For a time the situation was touchy. Sol held off the Kzinti by virtue of two accidents: the timely development of manned Bussard ramjets ("The Ethics of Madness") and the existence of giant laser cannon in the outer asteroids. These had been used to launch light-sail craft to Bussard ramjet speeds; now they were turned on the Kzinti. The Kzinti were amazed and hurt. Their telepaths had reported a species given over en tirely to peace. While Sol battled the Kzinti, an Outsider ship had arrived at We Made It. The Outsiders were interstellar traders, fragile, cold beings. They sold the secret of the faster-than-light drive to the human colony on We Made It. Two years later, a ship powered by the Outsider hyperdrive arrived in Sol system. The crew had not known of the war. They were amazed at their heroes' welcome. It was the Outsiders' faster-