Enter a darkly dystopian world full of eerie folklore, in which illness and difference have been prohibited. But from deep beneath the earth, a rebellion is rising ... Perfect for fans of Never Let Me Go and The Luminaries. Ora has always been fascinated by chilling fairy stories of the Vulpine - the mythical, fox-like monsters who live below ground, emerging at night to snatch 'imperfect' babies and children. Because Ora knows that disability and illness have no place in her world. To succeed is to be genetically 'perfect', just like her best friend Casta and his family. Then, one day, Casta's baby sister disappears. And Ora's mother reveals a long-buried secret: Ora herself has a genetic illness that affects her lungs ... And she's about to be found out. Desperate for answers and sanctuary, Ora decides to do the unthinkable and seek out the fabled Vulpine. And below the earth, she discovers a hidden world that turns everything she has been taught upside-down ...