Phoebe Caulfield is a fictional character from the novel The Catcher in the Rye by J.D. Salinger. She is the younger sister of the protagonist, Holden Caulfield, and represents innocence and childhood. Phoebe is intelligent, perceptive, and often serves as a voice of reason for Holden throughout the story. In the novel, Phoebe is depicted as a bright and spirited girl who loves to ride her carousel. Her strong bond with Holden highlights themes of family and the struggles of growing up. Phoebe's character ultimately symbolizes the desire to protect innocence in a world filled with complexities.