This is another book in the series of Secret Agent paperbacks and is copyrighted 1967. The basic story revolves around a character called the Exterminator who is killing various British agents. Tied in to this is that a yacht is in the city port whenever one of the agents is killed. John Drake is sent to exterminate the exterminator.
The novel is basically routine; one car-chase, a few killings, and a "twist" ending when it is revealed that the Exterminator is the daughter of a millionaire that drake had suspected of being the killer. The story is fairly interesting, but there is nothing really fantastically memorable to note about the book.
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