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.
Pagan Publishing
Pagan Publishing was founded in 1990 in Columbia, Missouri by the 19-year-old John Tynes, who had a love for H.P. Lovecraft and also for Robert Chambers. The company got going with the magazine "The Unspeakable Oath", with issue #1 (December 1990) as a digest-sized quarterly full of "Call of Cthulhu" material. Dennis Detwiller joined the company because of the magazine, after he saw "The Unspeakable Oath" #3 (Summer 1991), got into touch with Tynes and thereafter started volunteering at the company. Pagan Publishing published compilations of material from their magazine, including: "Courting Madness" (1992), an anthology of "The Unspeakable Oath" material; "Creatures & Cultists" (1992), a reprint of a card game that appeared in "The Unspeakable Oath" #4 (Fall 1991); and The Weapons Compendium (1993), which contained weapon stats from The Unspeakable Oath and new ones as well.