The Valley of Fear is the fourth and final Sherlock Holmes novel by Sir Arthur Conan Doyle. It is loosely based on the Molly Maguires and Pinkerton agent James McParland. The story was first published in the Strand Magazine between September 1914 and May 1915. The first book edition was copyrighted in 1914, and it was first published by George H. Doran Company in New York on 27 February 1915, and illustrated by Arthur I. Keller

Le roi de Boheme vient trouver Sherlock Holmes pour lui confier une affaire: il va bientot se marier a une prude princesse mais un ancien amour, Irene Adler, menace de tout faire echouer en publiant une photo d'eux deux. Sherlock Holmes invente un stratageme pour arriver a penetrer chez Irene pour voir ou est la photo: il fait croire a un incendie en sachant qu'elle cherchera a sauver ce qu'elle a de plus cher dans la panique - la photo. Finalement, elle parvient a s'enfuir avec la photo mais assure au roi qu'elle est amoureuse d'un autre homme et qu'elle ne lui portera pas prejudice."

The Adventures of Sherlock Holmes is a collection of twelve short stories by Arthur Conan Doyle, featuring his fictional detective Sherlock Holmes. It was first published on 14 October 1892, though the individual stories had been serialised in The Strand Magazine between June 1891 and July 1892. The stories are not in chronological order, and the only characters common to all twelve are Holmes and Dr. Watson. As with all but four of the Sherlock Holmes stories, those contained within The Adventures of Sherlock Holmes are told by a first-person narrative from the point of view of Dr. Watson.