The New York Times bestselling author and "maven of alternate history" (San Diego Union-Tribune) presents a near- future thriller. A supervolcanic eruption in Yellowstone Park sends lava and mud flowing toward populated areas, and clouds of ash drifting across the country. The fallout destroys crops and livestock, clogs machinery, and makes cities uninhabitable. Those who survive find themselves caught in an apocalyptic catastrophe in which humanity has no choice but to rise from the ashes and recreate the world...

In Supervolcano: Eruption, one of nature’s most destructive forces released its ferocity on an unsuspecting world. Now, New York Times bestselling author Harry Turtledove reveals how the survivors of the disaster adapt to their new environment… In the aftermath of the supervolcano’s eruption in Yellowstone Park, North America is covered in ash. Farmlands cannot produce food. Machinery has been rendered useless. Cities are no longer habitable. And the climate across the globe grows colder every day. Former police officer Colin Ferguson’s family is spread across the United States, separated by the catastrophe, and struggling to survive as the nation attempts to recover and reestablish some measure of civilization…

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....