From one of the brightest talents in children's fiction and the winner of the Waterstones Children's Book prize comes a new novel about family and friendship. Siblings Jonathan, Holly and Davy have been struggling to survive since the death of their mother, and are determined to avoid being taken into care. When the family's wealthy but eccentric Great-Aunt Irene has a stroke, they go to visit her. Unable to speak or write, she gives Holly some photographs that might lead them to an inheritance that could solve all their problems. But they're not the only ones after the treasure...