A very old Agatha Christie. Back cover says "The final words of a dying man...the code names of Hitler's most dangerous agents...the elusive clue that send that elegant detective team, Tommy and Tuppence Beresford, to a fashinable seaside resort on a mission of wartime intelligence. But not as husband and wife. As strangers, meeting by chance, setting an elaborate trap for an elusive killer."
Tommy and Tuppence are back in the employ of the Secret Service; this time tracking down fifth column Nazis by the sea. Tommy gets bonked and tied up again; Tuppence gets abducted again. Are they going to be the neo John Carter and Dejah Thoris of the Burroughs Mars novels? But, finally all is well in mery ole England what with Tommy smoking out N and Tuppence putting the finger on M. See if you can beat them in figuring out who is whom at the pension by the sea. Not quite The 39 Steps but interesting all the same.
The quaint seaside town is the hiding place for the two most dangerous spies the Germans have working on their side. The crux of the matter is that these spies are most likely English and the English officials on all levels of the government who are sympathetic to the Nazi cause make investigation impossible. Intelligence brings in two perfect outsiders, Tommy and Tuppence, and tasks them with discovering who these spies are while working undercover. They are former intelligence agents who are not quite ready to retire and behind their positively ordinary appearance they are the perfect people to take down England's main threat.
I laughed at the loving condescension of the middle-aged sleuths' children for their parents. They think they're so important in their jobs and don't even suspect that their parents do more than knit and play golf to occupy their time. I admired the wits and the guts of the two patriots ready to sacrifice themselves for their country. I marveled at the dedication they displayed to each other, the affection and the partnership in everything their relationship is based on. I suspected everyone and in the end the bad guys were those I didn't even think to suspect. Hope you do better :)
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Another excellent Agatha Christie book. :)
Usual well done Christie mystery.