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 the remains of a vanished civilization. A human civilization. One that tells the history of the Death - incredible catastrophes - just about to occur on Earth.
But in this science fiction series from bestselling author Greg Bear, that's only the beginning. The Stone will yield a secret that makes even Earth's survival pale in comparison.