From New York Times and USA Today bestselling author Jamie Thornton.

WHAT IS SANCTUARY HIDING?

Dessa and her friends have brought the children in Project Polus to the safety of Sanctuary's walls—yet not all is what it seems.

Scientists, Security, and Support run a caste-like facility that forces people with the combo cure—people like Dessa's friends—to live outside. But Dessa is desperate for the medical help Sanctuary provides against the zombies. She is determined to make things work.

But when Dessa's group accidentally uncovers some of Sanctuary's top secret experiments, they end up facing a brutal truth, and a whole new kind of zombie.

What once seemed safe might just turn out to be the most dangerous place on the planet.

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For readers who love Young Adult apocalypse books with:

Survival at any cost

High-stakes missions

A band of outsiders

Found family

Fast zombies

Zombies with a big twist

Race against the clock

Corrupt authority figures

A government conspiracy

Humor as a coping mechanism

Romance during the apocalypse

Tough choices with no right answer

Doing the wrong thing for the right reason

Villains who think they're right

Loyalty tested to the breaking point

Redemption arcs

Love vs. duty

Protecting someone who doesn't want saving

Makeshift weapons and scavenged survival

Teen rebels vs. the system

Secrets that could save—or doom—what's left of the world

Hope in the ruins

Laughter in the dark

When saving the world means burning it down