In this first volume of the Mansions of Madness RPG books you will find five scenarios to use in your Call of Cthulhu games.
Two of these scenarios are older classics, fully revised and updated, and the other three are brand new adventures. You can play these as stand-alone scenarios, as part of an ongoing campaign, or string all five of theme together in a mini-campaign set in the 1920s!

These scenarios are suitable for up to six players, and should take a party of six between 1-3 sessions full of eldritch horrors and more. 

This book serves as a perfect next step for those tho have already survived the Doors to Darkness and Gateways to Terror!