Supervolcano: All Fall Down (A Supervolcano Novel) (Book:2)

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.
 
As the continent becomes a barren wasteland, former police officer Colin Ferguson's family finds themselves scattered across a desolate landscape, fighting for survival in a world where civilization is hanging on by a thread. With gripping suspense and vivid storytelling, Turtledove delves into the relentless struggle to reclaim humanity's foothold in a post-apocalyptic world, weaving a pulse-pounding tale of resilience, survival, and the unbreakable human spirit.