The Imitation Game Christopher soon dies from tuberculosis. When Britain declares war on Germany in 1939, Turing travels to Bletchley Park. Under the direction of Commander Alastair Denniston, he joins the cryptography team of Hugh Alexander, John Cairncross, Peter Hilton, Keith Furman and Charles Richards. The team are trying to decrypt the Enigma machine, which the Nazis use to send coded messages. Turing is difficult to work with, and considers his colleagues inferior; he works alone to design a machine to decipher Enigma. After Denniston refuses to fund construction of the machine, Turing writes to Prime Minister Winston Churchill, who puts Turing in
The World That Never Was as "intriguing, provocative and written with a novelist’s eye for detail ... an engrossing journey". In "The Guardian", anarchist writer Stuart Christie noted the relevance of the book's themes to contemporary tactics in policing and the Metropolitan Police Service's reluctance to make public files from the 1890s. Francis Wheen, writing in the "Financial Times", wrote that the book was "exhilarating" and questioned whether "the world that never was – one ignoring borders, and divisions of class and religion – [might] resemble the world as it might one day be"; while Peter Preston of "The Observer" described Butterworth's story as one