Shadows of Yog-Sothoth

The Silver Twilight is a secretive, international order dedicated to the destruction of the human race. As brave investigators, you must piece together passages from esoteric books, shards of strange artifacts and puzzling letters to discover the Silver Twilight's loathsome goals.
In addition to the campaign, this book includes two bonus scenarios. "The People of the Monolith" introduces the mysteries of the Cthulhu Mythos, and no harm can come to the investigators except through insanity. As such, is perfect for introducing new players to the wonders of "Call of Cthulhu."The other bonus scenario, "The Warren," presents and unsettling challenge for even experienced players.