We’re back and we’re cracking open the books, trying to ignore the strange wails they issue as we do so. The words probably shouldn’t scurry across the page like that. Maybe we’re lucky and they’re just bookworms. Whatever they are, we wish they would stop whispering such horrible things.

In practice, most bookworms simply ask for directions to Matt’s house.

Main Topic: Mythos Tomes

It’s taken a long time but we’ve finally tackled one of the most important topics in Call of Cthulhu: Mythos tomes. Hell, our website takes its name from the most famous one of all.

Although maybe not quite this edition.

We spend a little time talking about how we might use Mythos tomes in our Call of Cthulhu games, how they work mechanically and what new and interesting tomes we might create. Matt’s shrieks of anguish as we discuss players who burn eldritch texts are worth the price of admission on their own.


Some of the things we mention in this episode include:

And you thought the SAN loss from the Necronomicon was bad…


“Number 22” Playtest

Matt briefly discusses his recent playtest of his scenario, “Number 22”, as found in the new issue of The Blasphemous Tome. We offer places in playtests like this to our Patreon backers first of all. If you are a backer, do check your feed or email for announcements such as this one.

Flotsam & Jetsam Organised Play Campaign

The final part of the Flotsam & Jetsam organised play campaign for Call of Cthulhu is due out less than a week after this episode. If you want to give it a try, simply sign up for the Cult of Chaos programme. You can even earn some cool rewards for doing so!

The Blasphemous Tome issue 5

Issue 5 of The Blasphemous Tome is now in the post, but there is still time to secure your copy if you act quickly. All you need to do is back us on Patreon before the end of the year.

The Tome is the print-only fanzine we produce exclusively for our Patreon backers. This issue features a new scenario for Call of Cthulhu, called “Number 22”, written by very our own Matt Sanderson. You will also find plenty of other juicy articles, stories and artwork, including many contributions from our wonderful listeners!

Other Stuff


As part of this retooling, we are also discontinuing the songs we sing to new Patreon backers. This is probably an act of mercy. While they’ve been fun to do, the joke is wearing thin. Thank you to everyone we’ve sung to and we hope the mental scars fade with time!

You will find a couple of our final abominations in this episode. Be warned.

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One comment on “Mythos Tomes

  1. CthulhuBob Feb 29, 2020

    I’ve always disagreed with the notion that one can choose to believe or disbelieve the information in a Mythos tome. This knowledge is absolute, cosmological, über knowledge. It pierces the tender wall of your tiny, comfortable paradigm, and injects the Undeniable.

Blasphemous Tomes © 2018