<p><i>New York Times</i> bestselling author Greg Bear's <i>Eon </i>is now available for the first time in trade paperback.</p><p>The 21st century was on the brink of nuclear confrontation when the 300 kilometer-long stone flashed out of nothingness and into Earth's orbit. NASA, NATO, and the UN sent explorers to the asteroid's surface...and discovered marvels and mysteries to drive researchers mad.</p><p>For the Stone was from space--but perhaps not our space; it came from the future-but perhaps not our future; and within the hollowed asteroid was Thistledown. The remains of a vanished civilization. A human-English, Russian, and Chinese-speaking-civilization. Seven vast chambers containing forests, lakes, rivers, hanging cities...</p><p>And museums describing the Death; the catastrophic war that was about to occur; the horror and the long winter that would follow. But while scientists and politicians bickered about how to use the information to stop the Death, the Stone yielded a secret that made even Earth's survival pale into insignificance.</p>