The Horde Without End — Nazarea Andrews

It was supposed to be over… Returning from Haven 18 was supposed to be the end. But nothing is ever easy -- and in a world full of zombies, finding the missing is next to impossible. There are breadcrumbs. Tiny clues. But what are a few tiny clues in a world of the dead? Nurrin is desperate to find her brother, but that will mean trusting Finn O'Malley. A man shrouded in secrets, who kills as easily as breathing. And the more she learns about him, the more questions she has. But she has learned one thing -- the zombies are changing. Adapting. And this time, the Haven walls won't keep them out.