From the introduction:
In this...playable scenario...for the City of Mist Starter Set, your crew will be caught in the battle of two mythical forces, Investigating what seems to be a normal break-in to an art gallery in the Old Quarter or searching for a serial killer running loose on the streets of a rundown slum, your will unravel little by little the hidden war of legends seeking to manifest into the City. Will the crew manage to solve the crimes that would lead them to the truth? And if they do, what unspeakable choices will they have to make when they are forced to choose a side in this secret war?
This case can be used as an introduction to the City of Mist game and setting or as a standalone case for advanced players. It is suitable for 3-5 players.