Graham Greene originally divided his works into novels and ’entertainments’, separating his popular work from those he wished his literary career to be remembered for. In later life, this distinction would be blurred until it was dropped entirely. The Ministry of Fear is one of these earlier works labelled an entertainment. Made a year later into a film directed by Fritz Lang, it was written in the middle of wartime, and on the surface is a typical espionage thriller in the tradition of John Buchan’s
The Thirty-Nine Steps
, dealing with a Nazi spy ring operating in London during the blitz. On its own, the plot is gripping enough to carry the book through to the end, and those bits we can regard as ’entertainment’ made their way into the film.