
Part of Series
An explosion of incalculable magnitude in Yellowstone Park propelled lava and ash across the landscape and into the atmosphere, forever altering the climate of the entire continent. Nothing grows from the tainted soil. Stalled and stilled machines function only as statuary. People have been scraping by on the excess food and goods produced before the eruption. But supplies are running low. Natural resources are dwindling. And former police officer Colin Ferguson knows that time is running out for his family—and for humanity....
Author

Dr Harry Norman Turtledove is an American novelist, who has produced a sizeable number of works in several genres including alternate history, historical fiction, fantasy and science fiction. Harry Turtledove attended UCLA, where he received a Ph.D. in Byzantine history in 1977. Turtledove has been dubbed "The Master of Alternate History". Within this genre he is known both for creating original scenarios: such as survival of the Byzantine Empire; an alien invasion in the middle of the World War II; and for giving a fresh and original treatment to themes previously dealt with by other authors, such as the victory of the South in the American Civil War; and of Nazi Germany in the Second World War. His novels have been credited with bringing alternate history into the mainstream. His style of alternate history has a strong military theme.