This is another spy thriller by the master of murder-mystery—there are a couple of murders in here, but the nature of the spy thriller is that we know, more-or-less, why the victims were killed and who ordered the killing, if not the name of the particular thug. The tension, mystery, and excitement come from the good guys trying to accomplish their mission—to save the world in this case—and not be killed in the process.
This novel is a standalone, with unique characters, yet it is founded in the same basic premise as ‘Destination Unknown.’ Money and talented people in many fields have been disappearing, and an evil organization is growing, planning to destroy most of the world by encouraging the USSR and the USA to escalate their confrontations. Having used this theme twice, I speculate that Christie was concerned about the possibility of nuclear war between the superpowers. As a good storyteller should, she found a way to put a spin on the cold war and make the prevention of Armageddon depend on a few poorly equipped spies. And this was another opportunity for Christie to let British spies save the day with intelligence, experience, and devotion to the cause of peace.
The focus is on Victoria Jones, a typist who goes to Baghdad on a whim and becomes ensnared in the diabolical plot. This is the only plot-point where Christie stumbles: Victoria goes to Baghdad in pursuit of a handsome and charming young man she’s just met in London, who happens to be heading for Baghdad. Christie could easily have set this up more credibly; Victoria could have stumbled into a free way to travel to Baghdad (instead she seeks it out.) However, once you suspend your disbelief on this move, the rest of the story races by with lots of suspense, action, clever detection, and fine spy craft. Written in 1950 or so, Stalin is still in charge of the USSR. Christie doesn’t mention the US president by name, which was the style seven decades ago. (I think it was considered poor manners to use the name of real person in a fictional plot.)
This is a wonderful spy novel that holds up well, thanks to Christie’s crisp writing and her imaginative storytelling.