*I’m not supposed to be biting people’s faces off.* That’s the only thing Cassie can think of as she flees her school. The world is changing and so is she—changing to be more like the legless teacher that bit her and less like the classmates who fled with her. At first she fears she’s alone—and will only crave the flesh of others more and more as time goes on. But as she runs, she meets others who are infected, and like her, don’t want this curse. Together they make their way across the country looking for a cure and trying not to make a meal out of their only human companion.