Allie is a central figure in The Catcher in the Rye, despite the fact that he never appears in the novel. Allie is portrayed as a smart, kind, and talented boy. How old was Allie when he died? He dies of leukemia at the age of 11, several years before the events of the novel take place. Holden's memories of Allie and his death are a major source of his feelings of alienation and disillusionment.
Holden describes Allie as "terrifically intelligent" and "one of the nicest guys you ever met." He also admires Allie's sense of humor and his ability to see through people's masks. Allie's death has a profound impact on Holden, and he often thinks about him throughout the novel.
Holden struggles to come to terms with Allie's death and the unfairness of it. He carries around a baseball mitt that belonged to Allie and covers it with poetry about his brother's life and death. The mitt becomes a symbol of Holden's love for Allie and his desire to protect the innocence and purity that he associates with childhood.
Overall, Allie's character in The Catcher in the Rye represents the loss of innocence and the pain of growing up. His death has a profound impact on Holden and shapes his worldview in fundamental ways. Through Holden's memories of Allie, Salinger explores themes of alienation, disillusionment, and the struggle to find meaning and purpose in a world that seems senseless and cruel.