arkham horror the roleplaying game arkham mysteriesThe city of Arkham is a nexus for the strange, the dangerous, and the supernatural. In this adventure book, youll face some of the different dangers that threaten the city to give you a glimpse of the infinite possibilities offered to game masters by the Arkham Horror RPG Core Rulebook: Stop would be arcanists who have gained too much power Find the cause behind people falling into bizarre comas Investigate the mysterious death of a graduate student