Never leave someone behind: it's a promise easier made than kept, especially when seventeen-year-old Pip takes the headstrong twelve-year-old Iris under her protection in the wake of an earth-shattering plague. After an unspeakable tragedy, the duo must negotiate the complexities of their own identities amid the nearly unrecognizable remains of Spokane, Washington. When they're captured by a violent gang, Pip and Iris meet Fly, a stubborn...