Crooked Moon: The Crimson Monastery
Transcribed content from our recent YouTube video: https://www.youtube.com/watch?v=QklD9CbOoV0&ab_channel=EternityTTRPG
Transcription
“In the flames, there is purity and salvation. From the flames, she speaks…”
Those aren’t the words of a prophet. They’re the twisted scripture of a zealot. Deep in the mountains of Druskenvald, a crimson light spills from stained glass windows. It’s not salvation. It’s a warning.
Today, we’re venturing into one of the darkest D&D adventures I’ve ever read—The Crimson Monastery, from my new personal favorite, Crooked Moon.
Welcome back to Eternity TTRPG, your faithful companion through the wildest realms of Dungeons & Dragons. If you love your fantasy served with horror, vampires, and morally gray decisions, buckle in—we’re about to descend into a bloodstained cathedral of corruption.
Let me tell you a story.
Once, there was a noble knight named Marius Renathyr. A beacon of honor, clad in gold armor, championing justice in a cursed land. He loved a priestess of the Nightmother, and though they burned with passion, he kept his vows.
But as his crusade wore on, so did his soul. Wrath replaced compassion. And that’s when she found him.
Viraxys, a devil who fed on twisted souls, disguised her voice as that of a goddess—the Crimson Rose. On the verge of death, Marius accepted her offer of life eternal. But what she gave him was a curse.
Now immortal, now a vampire, now a puppet to her whims, Marius returned to the world not as a hero… but as Father Renathyr, the Crimson Abbot.
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Now, back to the video. Father Renathyr took over a mountain monastery, corrupted its clergy, and built a religion around his devil’s false divinity. In the village below—Dawn’s Gate—the people tremble under his sermons. Refuse his faith, and you’ll be burned alive. Embrace it, and you may become something far worse.
This isn’t just a dungeon crawl. It’s a full-blown crusade to take down a vampire cult… from the inside.
The Crimon Monastery is awesome – there’s just so much to it. But let’s start out by saying that Father Renathyr’s not alone. His cult is sustained by three terrifying Priors, each with their own tragic backstory and twisted gifts:
There’s Houndmaster Jaeger, Friar Olaf, and perhaps the most terrifying, Inquisitor Cromwell.
Each of them appears human at first. But when defeated, their monstrous Night Creature forms are revealed for a brutal second phase.
They’re more than lieutenants—they’re potential successors. If you don’t take out all three, the cult might survive… without Renathyr.
And then there’s the monastery itself.
It’s not just a setting. It’s a trap. The whole thing.
The monastery’s walls are made of bloodstone—a cursed material that prevents blood from drying. If you’re wounded, you leave a visible trail, and stealth becomes nearly impossible.
All around are red stained-glass windows arranged in rose-petal patterns. They bathe everything in an eerie light. Inside, the rituals are disturbing: bodies bled at the altar, corpses hanging in the Dead Larder, prayers whispered under a false god.
Oh—and there’s no sunlight. A blessing from the Crimson Rose means that even magical sunlight won’t harm vampires within these walls.
This is their stronghold. You’re not just breaking in to your usual dungeon crawl. With the Crimon Monastery, you’re invading a fortress of the damned.
Finally, this story doesn’t end with one death.
Kill Father Renathyr without wiping out his Priors? You start a civil war. The survivors fight for control, leading to bloodshed across the region.
But what if you expose the truth—that the Crimson Rose is a devil—and show proof to the faithful? You could cause the entire cult to collapse in one dramatic showdown. The townsfolk revolt. The Bloodless turn on each other. The Crimson Monastery falls into ruin.
You get to choose the ending. But be warned: leave even one thread intact, and the nightmare may rise again.
So, adventurer... if you haven’t picked up the Crooked Moon yet, it might just be time.
If you’ve liked what you’ve heard, the Crimson Monastery is only one of many adventures within this beautiful new book.
So, let me know what path you’d take in the comments below.
Like this video if you love dark, story-rich adventures. Subscribe for more deep dives into the shadowy corners of D&D, and let us know you want us to cover next.
Until next time—stay safe, roll high, and never trust a rose without thorns.
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Author - Jacob Tegtman
Dear reader, I hope you enjoyed this article. Tabletop gaming has been a passion of mine since I was 6 years old. I've played just about every game from Dungeons and Dragons to video games like Final Fantasy. These games have inspired me, made me laugh, made me cry, and brought me endless hours of enjoyment.
I started Eternity TTRPG - and the indie tabletop game that goes along with it (Eternity Shop) - to share my love of gaming with others. I believe that in our technology-driven age, tabletop games help bring a sense of magic and community back into our world.
If you love the site, please share it with others! I have lots of gaming-related material for you to peruse and use in your own gaming sessions. If you have any questions about the site or want to contribute, just send me a message using the "Contact" page, which you can find in the site's footer.


