Continuity: The age of Tom Hagen when he moved in with the Corleones is never consistent. At the start of Book I, Michael says Tom was 12 when Sonny brought him home and demanded they take him in; later in Book I, Tom says both he and Sonny were both 11. Then, in Book III, when recounting how Sonny had taken part in an armed robbery when he was 16, Don Corleone says that Tom had been living with them for three years at this point, which would place Sonny and Tom at 13 when Tom moved in.