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Mansions of Madness: Vol 1 - Behind Closed Doors - Leatherette

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Who Knows What Happens... Behind Closed Doors

Mansions of Madness Vol. 1 contains five scenarios for use with the Call of Cthulhu Starter Set or the 7th Edition Call of Cthulhu: Keeper Rulebook.

Chaosium Unveiled: Inside Mansions of Madness: Vol 1

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

It includes two fully updated and revised classics, along with three brand new adventures, and all can be played as standalone adventures, used as sidetracks for ongoing campaigns, or strung together to form a mini-campaign spanning the 1920s. Suitable for up to six players and their Keeper, each scenario should take between one and three sessions to play through, and are an ideal next step for those who have already experienced the horrors contained within the scenario collections Doors to Darkness and Gateways to Terror.

The Greenhouse

Horror in the Greenhouse

Here are the five scenarios:

Mister Corbitt

Does a seemingly shy and retiring local businessman hide a terrible secret? Can the investigators solve the riddle and save the day?

The Crack’d and Crook’d Manse

Long considered to be a cursed place by the folk of Gamwell, it seems the Fitzgerald Manse has finally escaped its sordid past. But, no one’s seen the new owner, Arthur Cornthwaite, for quite some time. Is history repeating itself?

The Code

Summoned to the home of Dr. Kenneth Connolly by an urgent telegram, can the investigators make sense of the bizarre events afflicting Wellington Manor?

The House of Memphis

World-famous magician Memphis the Great has not been seen for weeks. Has he merely gone off on another of his legendary magic-hunting trips, or is there a more sinister reason for his disappearance?

The Nineteenth Hole

Renovation work at Thistledown Golf Club has not been running smoothly. First, there were tales of illnesses, then ghostly sightings, and now no one can find the owner. Dark shadows fall over Scotland and all is not what it seems.

And don't go up the Attic!

And whatever you do, don't go up the Attic!

This supplement is best used with the Call of Cthulhu Starter Set or the Call of Cthulhu (7th Edition) roleplaying game and, optionally, with the Pulp Cthulhu sourcebook, available separately.

Call of Cthulhu

Call of Cthulhu is Chaosium’s tabletop roleplaying game of mystery and horror set within the world of the Cthulhu Mythos. Players take on the role of investigators of the strange, arcane, and unknown: regular people taking a stand despite the cost to body and soul. Against weird cults, bizarre magic, and otherworldly monsters, only they can save humanity and the world from the terrors from beyond.

Downloads for this Product

Pre-Generated Characters
Plain Text Handouts

Play online with our Licensed Partners

Do you play on a Virtual Tabletop? Our partners offer products for playing this scenario online.

Watch Live Play: Mansions of Madness: Vol 1

Curious about the scenarios? Watch the Live Play on the Stream of Chaos

What The Critics Say

  • An excellent revitalization of a classic collection and definitely has enough new content to be a worthwhile purchase even if you have earlier editions of the collection."

    — Never Read the Latin, Review: Mansions of Madness Volume 1: Behind Closed Doors.

  • "A fun ride... you'll have a great time playing these adventures."

    — Really Dicey, YouTube Review.

  • "Overall 5/5 – This collection of tales of troubled real estate offers a variety of fun and innovative approaches to a well-worn horror trope. Investigators and Keepers are likely to get some great gaming out of this collection."

    — H.P. Lovecraft Historical Society, Review: Mansions of Madness Volume 1: Behind Closed Doors.

  • “Mansions of Madness’s ‘The Crack'd and Crook'd Manse’ [is a] top-notch spooky house scenario, perfect for groups of any experience level, being simple enough for new players, but with enough meat and surprises to keep experienced gamers on their toes.”

    — MJRRPG, The Crack’d and Crook’d Manse Review – Call of Cthulhu (Mansions of Madness.

  • “Short scenarios packed full of content are a keeper’s delight. Especially when it’s a whole collection of deadly and sharp scenarios, that will not only scare you but also take you to horrible places you have never been before.”

    — Stygian Muse, Book Review: Mansions of Madness.

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Year Released:
Call of Cthulhu 7th Edition
Full Color Hardcover Leatherette
Page Count:
Stuart Boon, Shaun DeWolfe, Gavin Inglis, Christopher Lackey, Mark Morrison
Cover Artist:
Lee Gibbons
Interior Artists:
Dan Barker, Lee Gibbons, Doruk Golcu, Josu Hernaiz, Rachel Kahn, M. Wayne Miller, Matthew Mooney
Cartography and Handouts:
Miska Fredman
Nicholas Nacario