In a world in crisis, children are the future. Part of the cure. Not now. Children are deadly. Marked one to ten. Fiona is a TEN. She just doesn't know it yet . . . She doesn't know her true strength.

Fiona doesn't remember going to sleep. But she has woken to find her entire world has changed - her house is abandoned and broken, and her neighbourhood is barren and dead. Even stranger is the tattoo on her right wrist that she doesn't remember getting but somehow knows she must cover at any cost. And she's right. When the honeybee population collapsed, a worldwide pandemic occurred and the government tried to bio-engineer a cure. But instead the vaccination turned people into ferocious, deadly beasts. They have been branded as a warning to unvaccinated survivors. Key people needed to rebuild society are protected inside a fortress-like wall. Fiona has awakened branded, alone and on the wrong side of the wall . . .