(From the back of the box) Cards from the Smoke contains 160 large-format cards for use alongside the Call of Cthulhu Roleplaying game and Cthulhu Britannica: London. These versatile cards are designed to be use in different ways, from inspiring your own Call of Cthulhu scenarios set in London, to providing a quick way to resolve a chase, or a visual way of structuring an investigation. Use Cards from the Smoke for: Creating a scenario To resolve a chase or investigation To keep track of a chase or an investigation in conjunction with the Call of Cthulhu 7th edition rulebook To track a growing threat in a scenario or campaign To illustrate what is going on in the game