In May 2016, Fort McMurray, the hub of Canada's petroleum industry and America's biggest foreign supplier, was overrun by wildfire. The multi-billion-dollar disaster melted vehicles, turned entire neighborhoods into firebombs, and drove 88,000 people from their homes in a single afternoon. Through the lens of this apocalyptic conflagration -- the wildfire equivalent of Hurricane Katrina -- John Vaillant [the acclaimed award-winning novelist] warns that this was not a unique event but a shocking preview of what we must prepare for in a hotter, more flammable world.