Republic City is overrun by the dead. The infected are mindless, violent, and hungry—and Asami Sato has learned that survival means staying as far away from them as possible. Then she meets Nyx. A former Future Industries engineer whose name is barely visible on her ruined jumpsuit, Nyx is unmistakably infected. Except... she doesn't really act like a zombie. She doesn't chase people. She doesn't scream. She doesn't even seem to understand what's happening half the time. While every other zombie is tearing through the city, Nyx is usually standing somewhere staring at a wall, wandering in the wrong direction, or slowly following Asami for reasons nobody understands. But there's one thing Nyx seems to know. Asami. As the survivors struggle to stay alive and uncover the cause of the outbreak, Nyx becomes an unlikely—and increasingly inseparable—part of their group. She's dead. She's weird. She's definitely not the brightest zombie in Republic City. And somehow, Asami is starting to think she might be the safest person left in the world.