J. Jefferson Farjeon (1883 1955) was the author of more than sixty crime and thriller novels. His work was highly acclaimed in his day; Dorothy L. Sayers wrote that Jefferson Farjeon is quite unsurpassed for creepy skill in mysterious adventures. Farjeon is the author of Number Seventeen, a play that was adapted for the big screen by Alfred Hitchcock. His Christmas crime novel, Mystery in White, was republished as a British Library Crime Classic and became a bestseller.