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Supernatural fiction or supernaturalist fiction
 is a
genre of literary and media fiction exploiting or requiring as plot devices or themes some contradictions of the commonplace
natural world and
materialist assumptions about it.
In its broadest definition, supernatural fiction includes examples of
ghost story, and like genres such as
fantasy. Elements of supernatural fiction can be found in writing from genres such as
science fiction. Amongst academics, readers and collectors, however, supernatural fiction is often classed as a discrete genre defined by the elimination of "horror", "fantasy", and elements important to other genres.
 The one genre supernatural fiction appears to embrace in its entirety is the traditional
In the twentieth century, supernatural fiction became associated with
psychological fiction. The result is that the supernatural is only one possible explanation for what has been described. A classic example of this would be
The Turn of the Screw by
Henry James, which offers both a supernatural and a psychological interpretation of the events described. The ambiguity is considered to add to the effect.
 A similar example is
Charlotte Perkins Gilman's story "
The Yellow Wallpaper".
Supernatural fiction continues to be popular, but because it is not simple to define and is not popularly understood, it is not used as a marketing category by publishers, booksellers, libraries, etc. When marketed, supernatural fiction is often classed as mainstream fiction, or is subsumed by other subgenres.