Crepid Fornication - a murder mystery with a deep twist This scenario for Call of Cthulhu 7th edition is set in Hamburg, Germany in 1928. Suitable for four new players, it takes 3 hours to run. Following their invitation to Heller House, the investigators pursue their interests, artistic or otherwise. When a fellow artist is murdered, finding the one responsible is a no-brainer. Heller House, however, still harbors a deep dark secret... This scenario was developed for players new to Call of Cthulhu. It includes eight pre-generated characters, with individual goals and roleplaying hooks that serve as investigators and NPC alike. The scenario comprises six handouts and a Mythos tome with two new spells. Crepid Fornication blends social interaction and exploration. Being a game of horror, the story touches subjects that may not be appropriate for every player, specifically obsession, abuse, violence, incest, drug use and body horror. This scenario was created as part of the Storytelling Collective course "Write Your First Adventure Summer 2021". Included are a formatted PDF, bookmarked for easy navigation 26 pages of the Crepid Fornication scenario 8 pre-gen characters with background, motivation, and role-playing hooks 6 handouts 2 new Mythos spells 1 new Mythos creature 1 new Mythos tome notes and suggestions from the author