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The Horror Within, 8th-Level One Shot (5E)

Everyone who went to opening night of the Monveau Theater's newest show has gone completely insane. Can the characters uncover the shocking secrets inside the theater and find a way to end the plague of madness without losing their own minds? 

The Horror Within is a cosmic horror adventure for 8th-level characters. It's a one-shot that takes about 3-5 hours to complete and includes:

  • A maddening mystery where the characters' sanity is at risk

  • A thrilling battle against an Old One in the lost depths of the city

  • Combat cards for each monster, PC, and special treasure

  • High-quality digital maps for use with virtual table tops

Grab this adventure at a reduced price in the Bundle of Horror 2!

Note, this is a digital PDF product that we email to you.

Video walkthrough of the adventure below.

Customer Reviews

Based on 11 reviews
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S
Stefan Smith

Great oneshot! My party enjoyed it very much!

T
Trudy Malek
Good!

Good.

P
Predrag Krstic
Awesome!

I ran this as a rather inexperienced DM for a group of 4.

It takes not much of prep. to run this and getting into the story was easy too.
The madness was fun to implement into roleplay. Sometimes I took my players by surprise and let them experience some horrific scenes, sometimes i set up a suspense for it to be nothing but mindgames.
It was a blast, my players had a ton of fun!
I recommend buying and playing this.

J
Jesper Andersen Leth
Love it

First buy on the side. And I love the product. So easy to get an overview of the adventure and still a lot of good written detail that makes my job as DM so easy. One of the best on the fly oneshot I seen.

G
Goblinio
Fantastic, Effortless to Run

Ran this a few months ago for a group of three between campaign sessions, and we all thoroughly enjoyed it.

The madness elements that crop up during exploration were excellent, and the way the booklet is formatted makes it easy to tease out the mystery in an engaging way.

The combat encounters were well balanced and easily adjustable too.

As has been mentioned by other reviews, the included maps were easy to use (in Roll20 at least). As a final note I really appreciate the inclusion of the dramatic question prompts on each chapter - really helps keeping things focused and I'll be including something similar for any adventures I run in the future.