First edition. Octavo, original gray boards with white cloth spine stamped in black. Margery Lawrence's copy, with her signature in full on the front free endpaper, dated 1927. A good copy only, the spine darkened, cloth worn and frayed at the tips. ¶ Supernatural novel. The author is often confused with another Gertrude Dunn, author of The Mark of the Bat (1928) and Unholy Depths (1936); it is not the same person. Margery Lawrence (1889-1969) was an English fantasy fiction, horror, and detective fiction author who specialized in ghost stories.