"Chalmer has two daughters, one of whom is the same age as Billy. After Dorothy and Chalmer got married, the man abused Billy for a long time, this included rape. Prior to that, his mother's multiple marriages and his father's suicide had already predisposed Billy to multiple personality tendencies. The first split personality, a little girl, Christine, showed up when he was three."
Alice had studied Billy's 24 personalities carefully.
"Among them, the core personality is brown-haired Billy, age 26, but the second personality, 22-year-old Arthur, was English. A rational and cold man, Arthur self-studied physics, chemistry and research medicine. He was even fluent in Arabic. Stubborn and conservative, he considered himself a capitalist. The bespectacled man was the first to discover the existence of the other personalities, and, being in charge, decided who should appear as a representative of the family."
"He spoke Arabic?"
"That's right."