Gateways to Terror contains three short-play scenarios for the Call of Cthulhu 7th Edition roleplaying game, ideal for beginning and experienced players and Keepers alike. Originally, all three -- The Necropolis, What's in the Cellar? and The Dead Boarder -- were designed as demonstration games to give a taste of the game's core motifs -- mystery, investigation, and horror -- for those with limited time. The scenarios can be played in as little as one hour but can be expanded for slightly longer play, and each comes with four ready-made investigators so you can jump right into the action! Each scenario includes hints and tips for Keepers new and old, suggestions for additional investigators for larger groups, and a summary of the key rules needed to play.