A war with no winners. The time for retribution has come. Blood demands blood.

Stripped of the control her life depends on, Wynter once again finds herself face to face with the future she's sacrificed so much to prevent. With a clock ticking down over her head, and the destruction she saw in her vision soon to become a reality, she must decide whether to run from the chaos or fight it. To take fate into her own hands or watch as the Heart, and everyone she loves, burns.

Trapped behind enemy lines, Wynter must accept the help of unexpected allies and embrace the role she's destined to play, even if that means losing everything. She will need to battle her way through the capital—and through the symptoms of her advancing illness—to try to put an end to a war she feels responsible for before it's too late.

But the greatest war is the one raging inside her, and with time running out, Wynter wonders if being the monster everyone believes her to be is such a bad thing, after all...

Or if it's exactly what the world needs to save it.

SUBJECT ZERO is the final book in the Project W. A. R. trilogy.