The Great God Pan
By Arthur Machen
Cover: Pan and Psyche (c. 1874), oil on canvas by Edward Burne-Jones (1833-1898) · Wikimedia Commons · Public domain (artist died 1898)
The Great God Pan is an 1894 horror and fantasy novella by the Welsh writer Arthur Machen. Machen was inspired to write The Great God Pan by his experiences at the ruins of a pagan temple in Wales. What would become the first chapter of the novella was published in the newspaper The Whirlwind in 1890. Machen later extended The Great God Pan and it was published as a book alongside another story, "The Inmost Light", in 1894. The novella begins with an experiment to allow a teenager named Mary to see the supernatural world. This is followed by an account of a series of mysterious happenings and deaths over many years surrounding a woman named Helen Vaughan.
Summary source: Wikipedia: The Great God Pan · CC BY-SA 4.0