Agatha Christie did not only write whodunnits; from time to time she dabbled in the spy story. I think N or M? is by far the most effective of those. It sees the return of her married couple sleuths, Tommy and Tuppence Beresford. In the summer of 1940, with invasion looming, they are enlisted to winkle out German spies in a quiet south coast seaside town. Or rather, Tommy is enlisted and Tuppence very cleverly gets herself into the game.
It was published during the war in 1941 and it’s intriguing to read a story of this sort written in the heat of the moment when invasion was still a real possibility. This is not a completely realistic novel, but it does reveal some of the atmosphere and attitudes of the time.
I suppose this is what would today be called a comedy thriller, because as well as the air of suspicion and menace, where anybody might be someone other than who they seem to be, there is a good deal of humour running through the story.
The couples’ children are rather sorry for their middle-aged parents and their desire to find active roles in the war effort. They remain convinced, almost to the end, by the cover story that Tommy is a sort of filing clerk and Tuppence is visiting an elderly sick aunt.
In fact, both the elder Beresfords have put themselves back in harm’s way, by going undercover at Sans Souci, the guest house in Leahampton which the secret service is convinced is the centre of an enemy spy network, with its male and female leaders, codenamed N and M.
Playing roles themselves, both are only too aware of how the other guests conform almost too perfectly to stock “types”. There is the young mother with her toddler, the young German refugee, the large, elderly Irish woman, the retired gent fussy over his health with his wife whose only purpose in life sems to be to minister to his needs, the retired army man; and so on. Which of them are spies?
Both Beresfords use spy tradecraft. Tuppence puts an eyelash in the fold of a letter she leaves out on view, and checks the paper with fingerprint powder later. The couple’s contact is a man who appears to be fishing at the end from the pier.
It’s interesting that in a novel that mentions codebreaking work and features a personal code used between Tommy and Tuppence, there should be a character called Major Bletchley. Questioned by MI5 about this, Christie claimed that she had once been on a train for a long time as it waited at Bletchley station.
The novel has quite a resemblance to the final chapters of The Thirty-Nine Steps, with the seaside house making a convenient location for boat landings and signalling out to sea. The vision of the upper echelons of the armed forces and government being riddled with spies and nazi sympathisers also owes something to Buchan. Indeed, it is the uncertainty about who to trust that leads to the Beresfords becoming involved. Having been out of the intelligence game for so long, they are not known to the enemy spies.
The pace picks up towards the end with chases over the downs and a bewildering series of revelations as to who is and isn’t a traitor.
There’s a good deal of sympathy here for German refugees, and a grudging respect for enemy spies who risk their lives, as opposed to traitors who sell their own country out. Tommy and Tuppence were involved in this sort of thing in the last war and remember Edith Cavell, the British nurse shot by the Germans for spying, and her statement “Patriotism is not enough. I must have no hatred or bitterness for anyone”.
Tuppence recognises that although people are encouraged to hate the German people as a whole, that doesn’t mean that she does not sympathise with the feelings of individual Germans caught up, like the British, in this awful situation. This applies particularly to the mothers of those involved in the war, and indeed maternal feeling is one of the main clues leading to the eventual solution.
Christie offers an interesting explanation of how the Nazis plan to take over Britain, not by an armed invasion, but by an internal coup of British nazi sympathisers. The appeal of nazism is to “pride and a desire for personal glory”. It is “the cult of Lucifer”. As always with Christie, there is a firm basis in Christian morality. After all, the title is taken from the Book of Common Prayer.