Rosemary Bliss has challenged her Aunt Lily to an international baking competition in Paris: If Rose wins, Lily agrees to return the magical Cookery Booke that she stole. If Rose loses ... well, the consequences are too ugly to think about. Together with her long-lost grandpa, his sarcastic talking cat, and a turncoat French mouse, Rose and her brothers race around Paris to find essential - and elusive - magical ingredients that will help her out-bake - and out-magic - her conniving aunt. She has to win or the Bliss Cookery Booke will be lost to her family forever.