the unknown as the origin of supernatural fiction in his essay "Supernatural Horror in Literature" (1927). He also goes on to describe the literary genre's roots in Gothic literature. The description in Wuthering Heights (1847) of the natural surroundings in which the novel takes place and the eerie mood it evokes is cited as one of the first instances of supernatural horror's being evoked in literature. In the 20th century, supernatural fiction became associated with psychological fiction. In this association, descriptions of events that occur are not explainable through the lenses of the natural world, leading to the conclusion that the supernatural is the only possible explanation for what has been described. A classic example of this would be The Turn of the Screw (1898) by Henry James, which offers both a supernatural and a psychological interpretation of the events described. In this example, ambiguity adds to the effects of both the supernatural and the psychological. A similar example is Charlotte Perkins Gilman's story "The Yellow Wallpaper". References Further reading External links "Supernatural Fiction", entry in John Clute and John Grant, eds., The Encyclopedia of Fantasy (1997) 1762 establishments in Great Britain Speculative fiction Horror genres Horror fiction Fantasy genres Science fiction genres