The case for the psychic element in literature rests on a very old foundation; it reaches back to the ancient masters, -the men who wrote the Greek tragedies. Remorse will ever seem commonplace alongside the furies. Ever and always the shadow of the supernatural invites, pursues us. As the art of literature has progressed it has grown along with it. To-day there is a whole new school of writers of Ghost-Stories, and the domain of the invisible is being invaded by explorers in many paths. We do not believe so much more, perhaps, that is, we do not so openly express a belief, but art has finally and frankly claimed the supernatural for its own….

… It only remains to be added that the present great interest in spiritualism and allied phenomena has made necessary the addition of certain material of a literal character which we believe will be found quite as interesting by the general reader as the purely literary portion of the book.