Alone Against the Dark: A Solo Play Call of Cthulhu Mini Campaign.
Matthew Costello, Mike Mason

John Quincy Adams and the Politics of Slavery
David Waldstreicher, Matthew Mason

Chamado de Cthulhu: O Grande Grimório da Magia do Mythos de Cthulhu
Chamado de Cthulhupor Mike Mason, Matthew Sanderson

Horror on the Orient Express (Call of Cthulhu roleplaying - Adventures & Modules)
A Luxury Campaign Spanning the European ContinentMark Morrison, Phil Anderson, Marion Anderson, Bernard Caleo, David Conyers, ...................................................

Welcome to Dystopia
K. G. Anderson, Richard Bowes, Elizabeth Bourne, Scott Bradfield, J. S. Breukelaar, ........................................................................................................................