DOYLE, Arthur Conan, Sir (1859-1930). A group of 3 works, comprising: The Valley of Fear. London: Smith, Elder & Co., 1915. -- His Last Bow. London: John Murray, 1917. -- The Case-Book of Sherlock Holmes. London: John Murray, 1927. (Some spotting throughout.) -- Together, 3 works in 3 volumes, ALL FIRST ENGLISH EDITIONS, all in original publisher's red cloth gilt, condition generally good (a few corners slightly bumped, some rubbing to extremities).