Eon and Eternity are among the most ambitious science-fiction novels ever published. They chronicle a number of futures for the human race and perhaps the most sweeping, speculative, and awesome future history ever proposed.
On December 31, 1999, Earths scientists are nervous. A mysterious asteroid called the Stone has suddenly come into orbit around Earth. When American space missions explore the Stone, they find that it not only seems to have been inhabited by humans but to have been occupied more than a millennium ago.
The other side of this enigma is glimpsed when veteran Hexamon operative Olmy reports to his superior, the presiding minister of Axis City. Axis City is a settlement of humans, in the far future, who have explored a relativistic cosmic continuum called the Way and established themselves there in commerce and rivalry with various alien peoples. The leaders of the Hexamon, which is the political structure of the humans in the Way, are stunned to find out that Thistledown, the asteroid spaceship from which their ancestors had set out from Earth more than a thousand years before, had not only returned to its original orbit but gone back to a time three hundred years before it had been constructed. Olmy returns to Thistledown in order to explore further.
Meanwhile, the American expedition explores the asteroids seven chambers and finds out much of the amazing truth for themselves. The expedition, led by the capable Garry Lanier, includes Karen Farley, a British-born Chinese scientist with whom Lanier falls in love, and Patricia Vasquez, a brilliant young Hispanic American scientist who alone can understand the mathematical intricacies of the far future. For Earth people, the biggest secret of Thistledown is not the Way itself but the asteroids library, which contains pictures of a nuclear conflagration that had taken place in Thistledown’s past at a date in the near future of Earth. Russia has a spy within the expedition, and thus the secret gets out, bringing political tensions on Earth to the breaking point. Ironically, the pictures of the conflagration on the parallel world touch off, in the present world, the very events...
(The entire section is 896 words.)