Toronto: Copp, Clark Co., 1918. First Canadian Edition. First printing. Octavo; orange-tan cloth hardcover; dustjacket; 318pp. Tight, Very Good or better copy in the original pictorial dustwrapper which is slightly worn at extremities with a couple of minute chips at crown and rear panel; Very Good. The Canadian author's eighth mystery. This is the first Canadian edition; published the same year in America by George H. Doran. Somewhat scarce in dustwrapper.