Perhaps now best known for "The Long Chamber" and "The Dream Baby," supernaturalist works with feminist elements, Dunbar was an important influence on and contributor to the tradition of the
psychological ghost story in the opening decades of the twentieth century.
A work strongly influenced, I suspect, by Vernon Lee's "Oke of Okehurst," although Lee's tale is more explicitly influenced itself by the Henry James method of ghost-story writing. [Horrormasters; not printable]