Six months ago, Avery thought the world ended outside Dome Four. Thought she was one of the few of her kind. Thought the war that brought the human race to the brink of extinction was over.

But six months can change everything.

After fighting to escape a tyranny she didn't even know existed, Avery has had to come to grips with all the secrets she's uncovered. But more secrets continue to come to light, revealing how little of her world she truly knew. When evidence starts to show that Dome Four might be under siege, Avery knows what she must do.

Returning to the dome she longed to escape is a challenge for Avery, but now she knows there’s corruption lurking in the shadows. A massive steam shortage leaves half the dome without power, and people are falling ill. Dying.

And they’re blaming Avery.

Six months can change everything. Another month could wipe out all of Dome Four. The clock is ticking.