Arthur Machen (3 March 1863 – 15 December 1947) was a Welsh author and mystic of the 1890s and early 20th century. He is best known for his influential supernatural, fantasy, and horror fiction. His novella The Great God Pan (1890; 1894) has garnered a reputation as a classic of horror (Stephen King has called it "Maybe the best [horror story] in the English language"). He is also well known for his leading role in creating the legend of the Angels of Mons.
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 subsequently sold well, going into a second edition.
Machen next produced The Three Impostors, a novel composed of a number of interwoven tales, in 1895. The novel and the stories within it were eventually to be regarded as among Machen's best works. However, following the scandal surrounding Oscar Wilde later that year, Machen's association with works of decadent horror made it difficult for him to find a publisher for new works. Thus, though he would write some of his greatest works over the next few years, some were published much later. These included The Hill of Dreams, Hieroglyphics, A Fragment of Life, the story "The White People", and the stories which make up Ornaments in Jade.
In 1899, Machen's wife Amy died of cancer after a long period of illness. This had a devastating effect on Machen. He only gradually recovered from his loss over the next year, partially through his close friendship with A. E. Waite. It was through Waite's influence that Machen joined at this time the Hermetic Order of the Golden Dawn, though Machen's interest in the organization was not lasting or very deep.
The House of Souls (London: Grant Richards, 1906), with cover designs by Sidney Sime
Machen's recovery was further helped by his sudden change of career, becoming an actor in 1901 and a member of Frank Benson's company of travelling players, a profession which took him round the country.
This led in 1903 to a second marriage, to Dorothie Purefoy Hudleston, which brought Machen much happiness. Machen managed to find a publisher in 1902 for his earlier written work Hieroglyphics, an analysis of the nature of literature, which concluded that true literature must convey "ecstasy". In 1906 Machen's literary career began once more to flourish as the book The House of Souls collected his most notable works of the nineties and brought them to a new audience. He also published a satirical work, Dr Stiggins: His Views and Principles, generally considered one of his weakest works.