Amazon.com Product Description (ISBN 0446353973, Mass Market Paperback)

[First of 2 "New Springtime" novels.] Everyone on Earth for a million years or more had known that the death-stars were coming, that the Great World was doomed. One could not deny that; one could not hide from that. They had come before and surely they would come again, for their time was immutable, every twenty-six million years, and their time had come 'round once more. One by one they would crash down terribly from the skies, falling without mercy for thousands or even hundreds of thousands of years, bringing fire, darkness, dust, smoke, cold, and death: an endless winter of sorrows. Each of the peoples of Earth addressed its fate in its own fashion, for genetics is destiny--even, in a strange way, for life-forms that have no genes. The vegetals and the sapphire-eyes people knew that they would not survive, and they made their preparations accordingly. The mechanicals knew that they could survive if they cared to, but they did not care to. The sea-lords understood that their day was done and they accepted that. The hjjk-folk, who never yielded any advantage willingly, expected to come through the cataclysm unharmed, and set about making certain of that. And the humans--the humans-- Locus Poll Award Nominee