DOYLE, Arthur Conan, Sir. The Valley of Fear. London: Smith, Elder & Co., 1915. 8o. Frontispiece by Frank Wiles. Original pink diaper-grained cloth (a little darkened, a few very small stains to covers); linen box. FIRST EDITION IN BOOK FORM, with 6-page publishers' advertisement. Locke 64; De Waal 503; Green & Gibson A39a.