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Chaosium Inc.

Shadows of Yog-Sothoth PDF


Shadows of Yog-Sothoth PDF


Product Description

A Global Call of Cthulhu Campaign to Save Mankind

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.

Shadows of Yog-Sothoth is a modestly-sized campaign of seven scenarios. During the course of play the investigators penetrate the outer layers of a secret sinister occult organization led by the lords of the Silver Twilight. Beginning in Boston they investigate an organization in New York, run afoul of a coven in Scotland, roam the desert of the American southwest, vacation off the coast of Maine, and explore the mysteries of the South Pacific.

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 an unsettling challenge for even experienced players.


  • The Hermetic Order of the Silver Twilight
  • Look to the Future
  • The Coven of Cannich
  • Devil’s Canyon
  • The Worm that Walks
  • The Watchers of Easter Island
  • The Rise of R’lyeh


  • The People of the Monolith
  • The Warren


Experience it with 7th Edition Call of Cthulhu. Get the rulebook here.

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