The Winds of Time (SF Rediscovery Series, No. 10)

Classic science fiction novel, first published by Doubleday in 1957; this is a trade paperback edition. A unique plot element sets the story in motion: 15000 years ago, a small group of space-traveling aliens crash on Earth; their ship hopelessly damaged. They place themselves in suspended animation, expecting to awaken in the future when Earth has developed its own technology for spaceflight. But they awaken 200 years too early...