Edward Wilson's second novel will prove familiar territory for fans of A River in May. The setting is 1950s London, at the height of the Cold War. Kit Fournier is ostensibly a senior diplomat at the US embassy in Grosvenor Square, but it actually CIA bureau chef in London. The Arms Race informs much of the action in this fast-paced page turner which sees Kit go undercover to meet a dissident KGB agent, lose a loved one, have a crisis of soul and get blackmailed into becoming a double agent for M16