What happens when you can’t do the one thing that matters most? 12-year-old Hope lives in White Rock, a town struggling to recover from the green bombs of World War III. The bombs destroyed almost everything that came before, so the skill that matters most in White Rock—sometimes it feels like the only thing that matters—is the ability to invent so that the world can regain some of what it’s lost. But Hope is terrible at inventing and would much rather sneak off to cliff dive into the Bomb’s Breath—the deadly band of air that covers the crater the town lives in—than fail at yet another invention. When bandits discover that White Rock has invented priceless antibiotics, they invade. The town must choose whether to hand over the medicine and die from disease in the coming months or to die fighting the bandits now. Hope and her friends, Aaren and Brock, might be the only ones who can escape through the Bomb’s Breath and make the dangerous trek over the snow-covered mountain to get help. For once, inventing isn’t the answer, but the daring and risk-taking that usually gets Hope into trouble might just save them all.

Escape one danger. Jump into another... Twelve-year-old Hope has always felt a little different from everyone else who lives in White Rock. She tries hard, but she doesn’t always think before she acts. She takes big risks. Sometimes her risks pay off, but sometimes they fail. Sometimes she fails. Hope knows that the most dangerous thing about living in White Rock is that it’s so close to the deadly Bomb’s Breath—the invisible, fifteen-foot-thick band of compressed air that’s hovered over the earth since the Green Bombs of World War III. The citizens of White Rock live in fear of the Bomb’s Breath. Only Hope has figured out a way to go through it—and lived to tell the tale. But when a massive tremor rips across the earth, the Bomb’s Breath begins to lower over White Rock. It’s up to Hope and her friends Brock and Aaren to make the dangerous journey far from home, across the bandit-ridden Forbidden Flats to the wilds of the Rocky Mountains, and obtain the one thing that may be able to stop it—before the Bomb’s Breath sinks too far and destroys them all. This time, Hope can’t fail.