A charming and irresistible Ottoline story from award-winning and bestselling author Chris Riddell. Featuring a set of novelty gadget spectacles and now available in paperback for the first time Ottoline and Mr. Munroe do everything and go everywhere together. That is, until the day Mr. Munroe mysteriously disappears, leaving a strange clue written in string . . . Armed with her Amateur Roving Collectors' travel pass, Ottoline sets off on a journey over, under and on top of the sea to find her hairy best friend - and bring him back home.