The Cape Cod Mystery, first published in 1931, is a detective story by Phoebe Atwood Taylor, the first to feature her series detective Asey Mayo, the "Codfish Sherlock". This novel is a mystery of the type known as a whodunnit. According to The New York Times, "Phoebe Atwood Taylor can get more fun into a detective story than any writer at present producing, and with all the fun there is a mystery that is baffling for its own sake."

Plot summary

Dale Sanborn has made a lot of enemies in his career as a muckraking author, philanderer and occasional blackmailer. When he vacations at a cabin in Cape Cod, any of his many visitors—an old girl friend, his fiancée, an outraged husband, a long-lost brother and a few more—the night he died could have killed him, and all of them wanted to. When a respectable Boston matron is involved in the crime, local character Asey Mayo takes a hand and brings the case to a successful, if unexpected, conclusion. Storytel summarized the book as such: "When a famous author turns up dead, it's up to Asey Mayo to find the killer."

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