مجموعه مجموعه قصه های نانسی درو ، کتاب 5 : راز و رمز در مزرعه سایه

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The Secret at Shadow Ranch is the fifth volume in the Nancy Drew Mystery Stories series. It was first published in 1931 under the pseudonym Carolyn Keene, and was ghostwritten by Mildred Wirt Benson.