Grandpa is a bit out of sync, says Fido. Grandpa has dementia, says Mom. In any case, Fido's grandpa mixes up a lot of things. At night, he just goes for walks and forgets where he lives; he looks for his shoes in the oven, and when he bites into an apple, he exclaims: Mmmh, what a delicious potato! To help him remember, Fido and his grandpa make lists of fun things to do: jumping barefoot in puddles and watching seniors at the bathing meadow. Fido and his grandpa explore the world and experience many beautiful moments, especially when life goes as Grandpa says: sometimes up, sometimes down. Birgit Unterholzner has written a touching story, a tale of remembering and forgetting, and of the incomparable love between a grandson and his grandfather. In Leonora Leitl's illustrations, lovingly designed and magnificent visual worlds accompany the story.