Arthur Machen
Around 1890 Machen began to publish in literary magazines, writing stories influenced by the works of Robert Louis Stevenson, some of which used gothic or fantastic themes. This led to his first major success, "The Great God Pan". It was published in 1894 by John Lane in the noted Keynotes Series, which was part of the growing aesthetic movement of the time. Machen's story was widely denounced for its sexual and horrific content and consequently sold well, going into a second edition.
The Great God Pan
Stephen King wrote that his novella "N." from his story collection "Just After Sunset" (2008) is "a riff on Arthur Machen's "The Great God Pan"... Mine isn't anywhere near [as] good [as the original], but I loved the chance to put neurotic behavior—obsessive/compulsive disorder—together with the idea of a monster-filled macroverse." King has also cited Machen's novella as an influence on his novel "Revival" (2014). Similar to "Pan", "Revival" features an experiment on a young woman's brain which allows her to see into another world.