In a world poisoned by time, one girl holds the power to rewrite fate...In the sinking, poisoned sprawl of London Under, sixteen-year-old Failure survives by wit alone, shouldering a name that's both a curse and a strength in a world ruled by the godlike Kala. However, when a heist goes horribly wrong, she's thrust into the shadowy Time Programme, where young recruits are trained to rewrite history and save their doomed world.But the Programme has dark secrets of its own. To survive, Failure must confront her past and take the ultimate risk - trusting others. With allies like Despair, a boy hiding his own mysteries, and Torment, a fierce girl with her own agenda, she begins to realise that the power to reshape the future might just lie within her - if she dares to wield it.