In a new, revised edition, here is the first novel of the author's classic Galactic Center series, a triumph of breathtaking imagination and human drama set against an immeasurable tapestry of space, time, and evolution.

The third novel in the award-winning author's classic Galactic Center series is available once again. "A challenging, pacesetting work of hard science fiction that should not be missed" (Los Angeles Times).
Nearly 100,000 years after first contact with the machines that dominate the universe, a few hundred humans survive. Trapped on Snowglade, a barren world near the center of the galaxy, people like Killeen of Family Bishop...

In the spaceship, Argo, humans flee machine creatures determined to exterminate them. The escape route takes them dangerously close to a black hole where they discover the remains of an ancient human civilization and a way of defeating the mechs. By the author of Great Sky River.