Call of Cthulhu is a horror fiction role-playing game based on H. P. Lovecraft's story of "The Call of Cthulhu" and HP Lovecraft's Cthulhu Mythos.
Includes a 32-page Investigators' Book, a 64-page Keeper's Book and the 32-page Sourcebook for the 1920's.
This was the last edition of Call of Cthulhu to be included in a box. Subsequent versions appeared either in softcover or hardcover.
Games Workshop in the United Kingdom also produced a hard cover version of third edition.