The Clue in the Diary

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The Clue in the Diary is the seventh volume in the Nancy Drew Mystery Stories series, and was first published in 1932 under the pseudonym Carolyn Keene. Its text was revised in 1962.
This is the last manuscript Mildred Wirt Benson wrote in her initial run. She would return for volume 11, The Clue of the Broken Locket, and remain with the series until 1948, then return for a final ghostwrite in 1953.