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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 12 reviews
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R
Rachael Bryant
Great Story!

Amazing story, great immersion. Excellent opportunity for seasoned DMs to build into a game or new DMs to run a guided one shot. We loved it!
My family elected for a one shot a couple weeks ago cause a player for our ongoing game was out. I had nothing lined up and had turned to Google for some ideas and maybe some pre-written stuff when I found The Arcane Library, and the The Horror Within. This was maybe 90 minutes before the game started. It was a quick read to get the understand the settings, get an idea of the story and tone, feel out the theme, and get the maps loaded to Roll20. It was easy to execute, fun to embellish as we played, and my players lived the horror theme.

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.