The Valley of Fear is the fourth and final Sherlock Holmes novel. It is based on the real exploits of the Molly Maguires and Pinkerton agent James McParland. Sherlock Holmes and Dr. Watson receive a letter from an informant. The letter is written in a numeric code. They decode the letter which warns that John Douglas of Birlstone House is about to be murdered. Sir Arthur Ignatius Conan Doyle was a Scottish physician and writer, best known for his Sherlock Holmes detective stories and for the adventures of Professor Challenger. He was a prolific writer whose works include science fiction stories, plays, romances, poetry, non-fiction and historical novels.

Media	Books Paperback Book (Book with soft cover and glued back)
Released	May 1, 2012
ISBN13	9781612035550
Publishers	Bottom of the Hill Publishing
Pages	112
Dimensions	152 × 229 × 6 mm · 158 g
Language	English

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