Suited to children of 11 and above, Spy Handler is the second William & Selma thriller. Having moved to Switzerland, William & Selma are approached by a Russian wanting a better life in the West in return for some highly sensitive information on Russian spies working in the UK incognito. William & Selma join forces with MI6 to help make this ‘defection’ possible while avoiding a web of intrigue involving MI6, the CIA and the Russian secret service.