"What Maisie Knew" is a novel by Henry James that tells the story of a young girl named Maisie caught in the middle of her parents' tumultuous divorce. As her mother, Bea, and father, George, engage in a bitter custody battle, Maisie becomes increasingly aware of the complexities of adult relationships and the emotional turmoil surrounding her. Throughout the narrative, Maisie navigates her fragmented family life, forming connections with various caregivers and step-parents. The story explores themes of innocence, perception, and the impact of adult conflicts on children, ultimately highlighting Maisie's resilience and growing understanding of her world.