Return to Antarctica with the long-awaited reprint of this classic campaign for Call of Cthulhu!

Chaosium Unveiled: Inside Beyond the Mountains of Madness

Watch the unveiling video to see the book for yourself. Remember that you get the PDF when getting the physical copy.

What's Inside?

The long out-of-print Beyond The Mountains of Madness returns with an updated layout and sleek new printing coming in at over 400 pages. This is a black and white hardcover book. Written in 1999, it is for the 5th edition Call of Cthulhu rules. It has not been updated to the 7th edition rules.

A Playable Sequel

Beyond the Mountains of Madness is a direct sequel to the short story At The Mountains of Madness, in which an expedition from the Miskatonic University in Arkham discovers proof of ancient, alien life. The investigators of this campaign embark on a new expedition, seeking to finish what the first one started—and uncover the truth of what happened to their predecessors.

Starkweather-Moore

A Classic Campaign, Untouched

This printing of Beyond the Mountains of Madness is unchanged from the original vision of the authors. Rules are presented as they were for Call of Cthulhu fifth edition, though can be played with other editions with minor mechanical changes.

Airplane

The Frozen Continent Revealed

Extensive information on Antarctica, including rules for mounting expeditions, and details for 1920s equipment. Expand your campaign, or develop your own Call of Cthulhu scenarios set in the white wastes of the South Pole!

Injuries example

Downloads for this Product

Handouts

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Character Sheet

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Players Map

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Order large printed maps and the expedition patch on Redbubble!

We have made them available to you through our Redbubble store in a variety of formats. Remember, PDFs of the maps are included with the bundled PDF purchases.

Keepers Map

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Players Map

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Expedition Patch

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What The Critics Say

"Unique. Unprecedented. Jaw-gaping. Immersive. Engrossing. All these, and many more, are adjectives that describe BtMoM, and I am barely doing it justice... Everything is right about this reprint. The price is only USD 10 higher than the price of the 1999 edition, the product is a hardcover instead of a softcover, it has a classy integrated bookmark that you will use to death, a superior layout that is much easier to peruse, and includes the pdf!"

— Antonios S. RPGNet, Review of Beyond the Mountains of Madness (2021 Reprint).
“As far as I am concerned it’s the best “big campaign” ever published for the game… the campaign is absolutely stuffed both with interesting incidents along the way and a hideous discovery at the climax.”

— Refereeing and Reflection, a Cthulhu Railroad On Ice.