Book excerpt: From a powerful new voice in literary fiction comes an intense psychological thriller in the tradition of Donna Tartt, Stewart O'Nan and Patrick McGrath. Set in a wealthy area of New York City, the story begins in 1994, when Luke Nightingale is six and his parents are finalising the divorce. The novel is narrated by Luke's cynical, cruelly perceptive and violent alter ego Daniel. A novel about mothers, sons, the dangers of the imagination, the precariousness of sanity and the temptations of power, this is a stunning debut from a promising writer.