The Great God Pan
What is now the first chapter of the novella was published in 1890 in a magazine called "The Whirlwind", while what is now the third chapter of the book was published in the same magazine the following year as a standalone short story called "The City of Resurrections". Machen only viewed the two works as connected after they were finished. Once he decided the two stories were connected, Machen wrote the rest of "The Great God Pan" in a single evening save for its final chapter. Machen did not think of an ending for the tale for months, and in that time believed that the novella would remain unfinished forever. The last chapter was completed in June 1891. Machen sent the novella to the publisher Blackwood, who rejected it, deeming it a clever story that "shrink[s]...from the central idea." It was accepted by John Lane and published in 1894. When published as a book, "The Great God Pan" was accompanied by another Machen tale called "The Inmost Light" which also features a mad scientist and elements of science fiction. The book's cover was illustrated by Aubrey Beardsley.
Pan Book of Horror Stories
The series was initially collected and edited by Herbert Van Thal. On Van Thal's death Clarence Paget edited the series, from volume twenty-six until its demise with volume thirty in 1989.
The early editions of the "Pan Book of Horror Stories" were notable for their lurid cover art and Van Thal's introduction of stories by new authors alongside classics of the genre. The first edition included works by Peter Fleming, Muriel Spark, Bram Stoker and C. S. Forester. Later volumes featured Ray Bradbury and Lord Dunsany among others. Basil Copper made his debut in fifth volume, with the story "The Spider". The series also published work by Charles Birkin, R. Chetwynd-Hayes and Alex Hamilton. After volume nine, Van Thal placed a heavier reliance on new authors. The series grew in popularity and was the stepping stone for much new talent. In the 1970s, the increasingly violent content of the "Pan Books" provoked some controversy. In the early 1980s a slow decline in standards was observed. Popularity rose again in the late decade, but a multitude of reprint stories from Stephen King and a severe slide in quality ended the iconic series in 1989. The last book is now a rare collectors item, due to the small print run it received.