The Bliss family's magical Cookery Booke was stolen by evil Aunt Lily at the end of Bliss, the first novel in the series. Now twelve-year-old Rosemary has a chance to win it back: she challenges her aunt to an Iron Chef-style international baking competition in Paris. But the only way to beat the cheating Aunt Lily is to gather magical ingredients of her own. Together with her brothers and their talking cat and mouse, Rose races across Paris—from the Eiffel Tower to the Cathedral of Notre Dame to the Mona Lisa in the Louvre Museum—to gather what she needs to out-bake—and out-magic—her conniving aunt.
If Rose wins, the cherished Cookery Booke will return to her family where it belongs. If she loses—well, the consequences are too ugly to think about. . . .