Two factions at war
A plague that can't be stopped
A cure that could destroy them all . . .
Cat's hacking skills weren't enough to keep her from losing everything - her identity, her past, and now her freedom.
Meanwhile, the person who's stolen everything from her is close to realizing a hacker's dream: the solution to humanity's problems in gene form. Or so she thinks . . .
But now a new threat has emerged - a threat that could bring the world to the brink of a devastating war.
Both sides will stop at nothing to seize control of humanity's future, and that the centre of this war is Cat, and a race against the clock save millions of lives . . .
The gripping finale to a series The Verge has called 'perfect YA sci-fi'