[THIS tale first appeared in Blackwood's Magazine, August, 1859. A portion of it as then published is now suppressed, because encroaching too much on the main plot of the "Strange Story." As it stands, however, it may be considered the preliminary outline of that more elaborate attempt to construct an interest akin to that which our forefathers felt in tales of witchcraft and ghostland, out of ideas and beliefs which have crept into fashion in the society of our own day. There has, perhaps, been no age in which certain phenomena that in all ages have been produced by, or upon, certain physical temperaments, have excited so general a notice,—more perhaps among the educated classes than the uneducated. Nor do I believe that there is any age in which those phenomena have engendered throughout a wider circle a more credulous superstition. But, on the other hand, there has certainly been no age in which persons of critical and inquisitive intellect seeking to divest what is genuine in these apparent vagaries of Nature from the cheats of venal impostors and the exaggeration of puzzled witnesses—have more soberly endeavoured to render such exceptional thaumaturgia of philosophical use, in enlarging our conjectural knowledge of the complex laws of being—sometimes through physiological, sometimes through metaphysical research. Without discredit, however, to the many able and distinguished speculators on so vague a subject, it must be observed that their explanations as yet have been rather ingenious than satisfactory. Indeed, the first requisites for conclusive theory are at present wanting. The facts are not sufficiently generalized, and the evidences for them have not been sufficiently tested.
It is just when elements of the marvellous are thus struggling between superstition and philosophy, that they fall by right to the domain of Art—the art of poet or tale-teller. They furnish the constructor of imaginative fiction with materials for mysterious terror of a character not exhausted by his predecessors, and not foreign to the notions that float on the surface of his own time; while they allow him to wander freely over that range of conjecture which is favourable to his purposes, precisely because science itself has not yet disenchanted that debateable realm of its haunted shadows and goblin lights.]
