Review and GM tips for the Call of Cthulhu adventure, "The Ilsley Variant." A Halloween party leads the Investigators to Texas to solve a mystery in a painting. While not perfect out of the box, there's a lot of potential to make it a great adventure.
UPDATE: Chaosium retired this adventure, as well as the rest of the old Monograph line in February 2022, meaning that it is no longer available.
You can find my own fiction here: http://amzn.to/2Evs4HN