Phoebe Caulfield is nine years old; she is Holden’s younger sister. She is very mature for her age, and she realizes how weird her brother is behaving. Phoebe has an older brother named Holden. Phoebe doesn’t like her middle name so she changes it all the time, her most recent one is Weatherfield. She writes her fake middle names all over her notebooks. In her notebooks she writes short stories. She also shows her love for Holden by giving him all her Christmas money which is 8 dollars, and one time Holden was smoking and their mom came and smelled it she said it was her and covered for him.