Seattle. Summer. So much blood.Having fled the zombie outbreak in their hometown of Lynden, Violet and Fynn are on the run in an abandoned SUV. Desperate to find her mother and sister, Violet has driven Fynn to Seattle with her; but with very little petrol and even less of a plan, time is running out for the duo. Like Lynden, Seattle has become a post-apocalyptic battlefield of the undead, where death is imminent, and survival is a victory. Arriving at the hospital where Violet's mother, Elena, is a nurse, Fynn and Violet encounter the apocalypse firsthand. The walking dead have spread like a plague - and if they don't find Elena here, Violet and Fynn will be forced to travel further into the zombie-infested city to try and rescue her last remaining family members.But all is not as it was in Lynden. The zombies are learning to adapt to their surroundings - and fast.While the undead used to flounder blindly, relying mostly on their sense of smell, the zombies in Seattle are developing superhuman strength and sensory superpowers that enable them to hunt human flesh with even deadlier speed and accuracy. Mutant spider-like creatures scale buildings, local pets become life-threatening, and human traits are amplified with ferocious intent. Faced with deserted streets and ever-stronger zombie attacks, Violet and Fynn need each other more than ever as they advance deeper into this dangerous new world.But are the two fugitives really as alone as they think? Could there be others who have survived the flesh-eating pandemic - a last remaining hope for a world under attack? Or are Violet and Fynn the sole survivors of the deadliest summer in living memory?Amidst the chaos, Violet is realizing that there is more to Fynn than his tough exterior...and has he always been that handsome? While life as they know it crumbles around them, the pair find solace and safety in each other. But does Fynn remember their first kiss the way Violet does? Or is their chemistry a passing connection, forged out of desperation in their terrifying circumstances?