Coral survives deep in a cave but emerges days later to find the world transformed, with blackened trees, an ash-filled sky, and no living creatures stirring - except for her....

It's the end of oil. We knew it was coming one day. But it happened so fast! Devlin Quinn turns 16 the same week that a battle in a distant war shuts off the flow of imported petroleum to the US. Gas runs low, then runs out, and soon the highways are empty. And then it gets very serious. The...

The enemies in nearby Payson have attacked. Now they'll suffer retaliation. Sierra's tactical brainstorm leads the neighborhoods into a surprise attack. Sierra, Dev, and the others need to liberate those under the control of the brutal invaders from the valley to guarantee their own safety. The...

Dev and Sierra - who have come of age emotionally and as warriors - head down to Payson to spy on the men who have taken over the town. What they find there horrifies them. And Sierra's aggressive streak leads them into a confrontation with these invaders, one that will put everyone's lives at...

Twenty-five years after the end of oil, Dev hears the shocking sound of hoofbeats on the road. No one has been up the road in six years, and now the last people he wants to see have arrived: a dozen armed men on horseback, promising a return of government and order. Dev doesn't believe their...

Ten years after the end of oil, no one has the bullets left to shoot at Dev and Sierra or their neighbors. But the climate seems determined to kill them with drought and relentless heat. As the irreplaceable technologies of the civilized world break down, survival becomes more and more of a...