A new adventure in the delightful series from Catherine Rayner, winner of the Kate Greenaway Medal. Olive the owl loves guessing games, and her best friends Molly the hare and Dexter the fox decide to play one together.But when it's Olive's go, try as they might, Molly and Dexter can't seem to work out the answer...Whatever is Olive thinking about?! One of three books, each starring a different member of this adorable trio, this story explores big emotional themes with gentle humour – delivering the charm of the 100 Acre Wood in a delightful package for toddlers.