This collection brings together the first four BLACKSTONE Erotica books:RED MONOLITH FRENZY, GREEN FEVER DREAM, Summonings: Anicka & Kamiland Summonings: Yvette’s Interview in the order in which the story occurs. Follow a novice Priestess of the Black Stone as she calls up prehistoric sex-gods in the mountains of Eastern Europe, gathers power and partners in the glitzy dungeons of London’s BDSM scene, and mates with monsters in subterranean chambers of lust and horror! Learn the backstory of her friends, lovers, and enemies! This volume also contains excerpts from Blackstone Book 3, Yellow Sign Bound and Orgy in the Valley of the Lust Larvae PLUS a special essay from the author on the weird-erotica writing experience.
-Martian Migraine Press

This is some fine literary smut. Published by Martian Migraine Press and written by Justine Geoffrey(not Justin Geoffrey of People of the Monolith fame). A collection of Erotica set in the shared Cthulhu Mythos of HP LOvecraft, Robert E. Howard, August Derleth, etc… Cultists, otherworldly “Demons”, sex dungeons, fish fuckers, human bodily fluids mixing with otherly world ichor and other such things.
It seems partially set in the town in the Czech republic where Robert E. Howard’s ‘The Black Stone’ took place. It’s like Robert E. Howard & Penthouse Letters meet through a Flesh World  ad and got together in a hotel room for a long weekend, only stopping to write and consume foodstuffs and other substances.

While not recommended for everyone, do read this if you like your mythos w/ a bit of slap and tickle. If Fendogan & Bremer ever publish “Weirdest Shadows Over Innsmouth” they should include Green Fever Dream. The closest thing I can compare this to is reading the Xothic Legend Cycle from Chaosium and the Delta of Venus with a fever, and unknowingly vacillating between the two. Only Warning, this isn’t very vanilla.