A good example of a Greene novel – spare prose, very English, hidden menace in the storyline. It is set in wartime London; the principal character is Arthur Rowe, who is unable to serve in the military and cuts himself off from the war effort and society in general. But he is ensnared in the work of some Fifth Columnists and, thereafter, the story becomes a straightforward thriller.

It is enjoyable both for the sheer excellence of Greene’s writing and the period flavour of the story. A diversion, but a well structured and interesting one.