designer's blog comments: In response to a request, I have put together a PDF collating all my ‘Cthulhu Within’ posts. These posts are a series of notes on converting the original Enemy Within campaign to Call of Cthulhu. They are primarily of interest to Call of Cthulhu Keepers, but may also be a source of ideas for WFRP GMs running The Enemy Within. user note: This is a structured set of conversion notes, the original material is still required to run the scenario.