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This subject is written on a topic in the real world and reflects factual information. This subject contains information from the Expanded Cthulhu Mythos, and not based on H.P. Lovecraft's works directly. The Sassoon Files is a supplement for the Call of Cthulhu role-playing game by Chaosium and was published by Sons of the Singularity. It is compatible with the 7th edition of Call of Cthulhu and GUMSHOE role-playing games. The book is set in 1920's Shanghai and focuses on Victor Sassoon and the factions that competed for influence and power during that period with presence of the Cthulhu Mythos.

Chinese Government book burning

In March 2019, it was reported by the publisher that all physical run copies of the supplement had been destroyed by the Chinese Government without explanation and their deposit returned.[1] Despite not being intended for sale within China, a spokesperson from the printing company stated that it was due to the book containing "false reports" of real-world Chinese individuals which the cultural department saw and ordered to be destroyed.[2]


  • The character Vitas Varnas is based off the real-life actor, writer and producer of the same name. In his description it says he co-starred in his vaudeville act "Arin & Danny - The Two Grumps", a reference to the popular YouTube let's play series Game Grumps.[3]


  1. Plunkett, Luke (2019-03-26). RPG Publisher Says Chinese Government Burned Every Copy Of Their Latest Book. Kotaku. Retrieved on 2019-03-31.
  2. Hawkins, Amy (2019-03-28). China Is Burning Books Again. Foreign Policy. Retrieved on 2019-03-31.
  3. Varnas, Vitas (2019-03-27). The Sassoon Files, the latest scenario book for the 7th edition of the Call of #Cthulhu RPG series by Chaosium Inc.. Facebook. Retrieved on 2019-03-31.