Hence, my four little tales are of no genuine ghosts in the scientific sense; they tell of no hauntings such as could be contributed by the Society for Psychical Research, of no specters that can be caught in definite places and made to dictate judicial evidence. My ghosts are what you call spurious ghosts (according to me the only genuine ones), of whom I can affirm only one thing, that they haunted certain brains, and have haunted, among others, my own and my friends'—yours, dear Arthur Lemon, along the dim twilit tracks, among the high growing bracken and the spectral pines, of the south country; and yours, amidst the mist of moonbeams and olive-branches, dear Flora Priestley, while the moonlit sea moaned and rattled against the moldering walls of the house whence Shelley set sail for eternity." (Summary by Vernon Lee from the Preface)