The Horde Without End (The World Without End #2)

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.