Opening a heavy box that was left on the steps of her mother's thrift store, Maizy finds vintage Nancy Drew books as well as an old photo of three young women. She recognizes one of them: her grandmother, now an active senior who seems unlikely to have secrets. Yet when asked, she denies any knowledge of the photo. It's an irresistible puzzle for 11-year-old Maizy, who has begun reading the books from the box. Soon, she's on the trail, researching her grandmother's past and that of the elusive writers of the Nancy Drew series. Equally mysterious to Maizy are her best friend's newfound interests (makeup, volleyball, and boys), which have become a source of hurt feelings on both sides. Best known as the author of Book Scavenger (2015) and its sequels, Bertman creates a sympathetic character in Maizy. Confident in her views yet observant and empathetic, she makes a good narrator. Stamper's full-page, double-page, and small line drawings are an attractive addition to the book. A lively, well-paced story with several elements of mystery.

Sixth grader Maizy investigates the mysterious appearance of a box of vintage Nancy Drew books.Maizy has been writing silly screenplays with her friend Izzy since third grade, but the presumably White girls' relationship changes after Izzy criticizes Maizy's script for their school project and unilaterally invites into their group other classmates who co-opt Maizy's ideas. Hurt and angry, Maizy forms a new group with implied Latina Cam and biracial (Asian Indian and White) Nell. Someone has anonymously left a box of old Nancy Drew mysteries and a photo of three women dated 1993 outside Maizy's mother's thrift shop; one of the women in the photo is Jacuzzi, Maizy's grandmother, but the books aren't from her, and she doesn't remember the photo. Determined to discover the connection between the books, the photo, and Jacuzzi, the girls decide to produce a documentary, researching, interviewing, and following leads as they uncover information about the origin, authorship, evolution in popular perception and racist content, and continued popularity of the Nancy Drew books as well as the role they played in Jacuzzi's life. A strong theme of evolving friendships pervades this fun and funny mystery narrated in Maizy's lively voice, while the Nancy Drew motif infuses the plot with fascinating, thoroughly researched historical details about the series' creation and survival. Final art not seen.An engaging pick for mystery fans and wannabe sleuths. (map, author's note, resources) (Mystery. 9-12)