Aftertime by Sophie Littlefield

Awakening in a bleak landscape, Cass Dollar vaguely recalls enduring something terrible. Having no idea how many days—or weeks—have passed, she slowly realizes the horrifying truth: her daughter, Ruthie, has vanished. And with her, nearly all of civilization. Instead of winding through the once-lush hills, the roads today see only cannibalistic Beaters—people turned hungry for human flesh by a government experiment gone wrong. In a broken, barren California, Cass will undergo a harrowing quest to get Ruthie back. Few people trust an outsider—much less one who bears the telltale scars of a Beater attack—but she finds safety… Read more.