Two twelve-year-olds, two very different palates, one shared hunger for the world. Pippa Henley and Pieter Doderlein are best friends whose families are connected through Pieter's parents' touring music career, every school holidays, wherever the next concert is, the kids go too. Each book drops them into a new city where they eat their way through real, existing restaurants and street-food stalls, chase down a piece of local history or legend tied to a dish, and stumble into a light mystery or challenge along the way (a missing family recipe, a food festival they need to save, a rival young food-vlogger, a grandmother's secret ingredient).