- A Robert A. Heinlein classic reissued with an all new celebrity Foreword by noted Heinlein biographer Bill Patterson and Afterword penned by three-time award-winner for fan writing and science fiction scholar John Hertz.
- It’s a cross-time fight for freedom as a family retreats to a bomb shelter during a nuclear attack — only to emerge hundreds of years in the future, thrown forward in time by the blasts. There, lifeboat ethics rule as they struggle to survive...until they’re discovered by up-time humans, the survivors of the apocalypse, of African descent. Down-time humans — in fact, all of the European-descended — are held guilty for the state into which the world has fallen and designated as automatic slaves. The only escape is to find a way back down-time, to change events sufficiently to make absolute certain this nightmare future never gets a chance to happen in the first place!
- ISBN10 143913443X
- ISBN13 9781439134436
- Publish Date 2 July 2011
- Publish Status Active
- Out of Print 11 March 2021
- Publish Country US
- Imprint Baen Books
- Format Paperback
- Pages 304
- Language English