The Call of Earth (Homecoming Vol. 2) by: Orson Scott Card
Hardcover. NY, TOR Books, 1st, 1993, Book: Very Good, Dust Jacket: Very Good, Hardcover in a bright, unclipped dust jacket, 304 pages. Second book of the "Homecoming" series. On the planet Harmony survivors from a ruined Earth live in a utopia maintained by a computer, which is failing. The only repair lies light-years distant on Earth and the only way to get there is to teach forbidden technology to a few select people. Clean copy.
