Sanctuary — Perrin Briar

Dana and Hugo are outcasts, half-breeds living with an infection that has turned almost everyone else in Seattle into mindless flesh-eating zombies. Armed with the location of Dana'a little sister Max, Dana and Hugo must cross a city crawling with the undead to find her. They face raging fires, trigger-happy gun nuts and former city scum rising to the surface. It's far from plain sailing as the apocalypse begins to gear up in this, the second installment of the Resistant series.