New York, Harper & Brothers, 1935. Stated first edition. A discussion of old-time traditions of the supernatural is interrupted by a stranger. When one of the group then turns up dead...in a locked room! Notable for Gideon Fell's spoken dissertation on locked-room mystery conventions. One of the best of the genre, from its acknowledged master. Corners bumped, bookplate to front pastedown. Vertical creasing to some pages, small stain to foredge. $75.00.