 He eventually discovers Alannah having her own affair, and the couple split.He reconciles with his son from his first marriage, Lionel, who has moved to New York to manage a pop group, until Lionel's sudden death.Monday, Lionel's girlfriend, moves into Mountstuart's flat; at first friends, they become intimates until her father turns up and Mountstuart discovers – to his horror – that she is 16 (having told him she was 19).