'She has to escape.
But who else is out there?
And can anyone survive days like this?
'I want to go back to the days when life made sense. The days before our parents became strange; before the warming ate away at all the living things in the world; before The Committee and their Blacktroopers. Before the Wall.
'Lily is a prisoner in her own home. Forced to stay inside by The Committee and guarded by their increasingly distant parents, Lily and her brother Daniel are beginning to ask why. Then, when Daniel disappears just before his seventeenth birthday, Lily knows she is next.' (From the publisher's website.)