Lucy must navigate the complexities of her grandmother's declining memory and the social implications of her neighbor's intellectual disability as they both prepare to enter middle school. Lucy's summer is overshadowed by the realization that her beloved grandmother is losing her memory, a situation that forces Lucy to confront difficult truths about aging and family. Simultaneously, she grapples with the impending school year, where her friendship with her neighbor, who has an intellectual disability, threatens her carefully constructed social standing. The narrative explores Lucy's internal conflict as she tries to reconcile her loyalty to her neighbor with her desire for popularity among her peers.

The premise sets up a poignant exploration of childhood challenges, focusing on themes of family, aging, and social dynamics. The narrative likely delves into Lucy's emotional growth as she confronts her grandmother's memory loss and the social complexities of middle school. The inclusion of a neighbor with an intellectual disability suggests a focus on empathy and understanding diverse relationships. The story appears poised to offer a sensitive portrayal of these intersecting issues, aiming to resonate with young readers navigating similar experiences.