The Great Old Ones is a book of six loosely linked scenarios involving some of the Cthulhu-mythos Elder Gods: It won the Origins Award for 'Best Roleplaying Adventure of 1989'. The Great Old Ones contains six adventures for Call of Cthulhu.
Isinwyll, with art by Tom Sullivan, and published by Chaosium in 1989. Ross, Harry Cleaver, Doug Lyons, and L.N.
The Great Old Ones is a horror tabletop role-playing adventure, by Marcus L.
