"In reading it I had several splendid shudders. . . . It is a piece of living literature, not merely an evening"s entertainment." - E. B. Osborn, Morning Post "A bang-up ghost-murder-detective story with a background of bleak Northumberland moors, an old house full of haunts, [and] a Roman Centurion who appears . . . with death in his wake." - Scribner"s Magazine "A well nigh perfect admixture of eerie horror, romance and good detecting." - Saturday Review "Truly a little masterpiece of a book. Reminiscent of Christie at the height of her powers in its brilliant use of misdirection. . . . Really a classic of its kind." - J. F. Norris, Mystery File From the moment William Mertoun arrives to catalogue the library at Colonel Barr"s old mansion on the desolate Northumbrian moors, he senses something is terribly wrong. Barr"s brother Ian has just died, mysteriously and violently, and the Colonel himself is hidden away in a locked room, to which his...