Nancy Clancy is growing up and ready for a whole new adventure . . . in her chapter book debut! Nancy and her best friend, Bree, have everything they need to solve a mystery, from their totally professional trench coats to their top-secret code. But when crime strikes in their classroom, will these super sleuths be able to crack the case? Find out in the glamorous start to an all-new chapter book series featuring everyone's favorite fancy girl!