Martha Pennydrop is ten, and desperate to grow up. But growing up is a tricky business. It means turning your back on imagination, fun and magic, because those were the things that led to the Terrible Day when something awful nearly happened to Martha's younger brother, Scruff, which would have been All Her Fault.
But when Martha and Scruff discover a drawer full of mysterious gold dust in the bedroom of their new house - along with a window that's seemingly impossible to close - it's the start of an incredible adventure to a magical world: Neverland! The Pennydrop's new house used to belong to another family - the Darlings - who once visited this world themselves. Now Peter Pan is back, and in need of their help. Neverland is in the icy grip of a terrible curse - cast long ago by Captain Hook. And only Martha and Scruff can save it . . .
A reluctant Martha and excited Scruff are swept off to Neverland and into the company of the Lost Kids. But when Scruff is kidnapped, Martha must rediscover all the imagination, magic and belief she has buried deep inside herself for so long, to save him - and Neverland itself.