Get ready for the Realms to learn your name—darkness stirs in the quarries of Helmsdale, and only those who brave its dangers will be remembered!
The Tenebrous Stone is a chilling adventure from Forgotten Realms: Adventures in Faerûn for level 3 characters. In it, heroes must uncover a malevolent artifact to rescue a village from an ancient evil—and carve their own legend into the tapestry of Faerûn.
D&D Beyond users can claim The Tenebrous Stone at no cost! Simply click the button below to visit the claim page and add it to your account. If you’re new to D&D Beyond, you can sign up for free and begin your descent into darkness today.
Play This Adventure in the Maps VTT—No Subscription Required
Skip the prep and dive straight into adventure with D&D Beyond's Maps VTT!
With the quickplay map included with this adventure, you can set up a digital playspace on Maps with one click, track combat with integrated encounter tools, review every roll in the Game Log, and bring your story to life with immersive features like Fog of War and Overlays.

How to Set Up The Tenebrous Stone Adventure in Maps
This guide will walk you through the simple steps to set up your campaign, invite your adventuring company, and begin your journey into Faerûn with The Tenebrous Stone.
- Step 1 — Claim the Adventure
- Step 2 — Create Your Campaign
- Step 3 — Invite Your Players
- Step 4 — Prepare Your Materials
- Step 5 — Set the Stage with Maps
- Step 6 — Gather Your Party and Play
Premade Characters on D&D Beyond
If you’re new to D&D or want to jump straight into the action, premade characters are available for everyone with a D&D Beyond account.
See Step 3 for advice on adding them to your campaign.
Step 1 — Claim the Adventure
Begin by claiming The Tenebrous Stone on D&D Beyond. Once it’s unlocked, all of its content is added to your account, ready to use in the compendium and Maps VTT.
Step 2 — Create Your Campaign
From the D&D Beyond homepage, go to Play D&D > My Campaigns in the main menu. Click “Create a Campaign,” and give it a worthy name.
Step 3 — Invite Your Players
Every quest begins with a call to heroes. Once your campaign is created, invite your players using the campaign’s share link. When they join, they can bring their own characters or select from the available premade characters.
Step 4 — Prepare Your Materials
With your party assembled, go to Sources in the main menu and find Forgotten Realms: The Tenebrous Stone on the subsequent page to access your adventure materials. You'll find a ready-to-run adventure with a plot hook, map, and encounters designed to bring the dangerous depths of the Realms to life.
Step 5 — Set the Stage with Maps
Maps is D&D’s official virtual tabletop, letting you run The Tenebrous Stone directly from your browser. No subscription required.
Players can track their movements, plan tactics, and explore the adventure’s shadowed caverns together in real time.
To set up Maps for your campaign:
- Go to Play D&D > Maps VTT.
- From the Select Game dropdown, choose The Tenebrous Stone campaign and click “Go.”
- Click “Select Map” at the top of the screen, then “Open Map Browser.”
- Select “Quickplay Maps” and scroll to The Tenebrous Stone.
- Click the “+” icon beside the Quarry map and choose “Quickplay” to load preconfigured maps with Fog of War and monster tokens.
Tips for Using the Maps VTT
Running Exploration on Maps
- Drag character tokens into the “Players Start Here” area.
- Reveal new sections by erasing Fog of War as the party explores.
- Unhide monster tokens at the perfect dramatic moment.
Running Combat on Maps
- Open the sidebar in the top left to access Combat Encounters.
- Use the Select tool (“V”) to highlight all combatants, then click “Add to Encounter.”
- Roll Initiative and click “Start Combat.”
- From the Initiative Order, view monster stat blocks and roll attacks directly from the VTT.
Step 6 — Gather Your Party and Play
With your campaign created, maps prepared, and adventurers assembled, it’s time to descend into the depths of The Tenebrous Stone. Send your Maps link, hit “Start Session,” and tell your tale of danger, mystery, and discovery beneath Faerûn!
More Epic Adventures in the Realms
Stocked with over 50 adventures, an in-depth gazetteer of five iconic locations, and countless hooks to spark unforgettable stories, Forgotten Realms: Adventures in Faerûn is the ultimate tool for weaving epic tales of magic, intrigue, and adventure across the Forgotten Realms.
Like The Tenebrous Stone, each of the adventures included in this book is a modular way to add adventures to your Faerûnian campaign, complete with plot hooks, encounters, monsters, and NPCs—so you can skip the prep and focus on the fun!

Mike Bernier is the founder of Arcane Eye, a site focused on providing useful tips and tricks to all those involved in the world of D&D. Outside of writing for Arcane Eye, Mike spends most of his time playing games, hiking with his girlfriend, and tending the veritable jungle of houseplants that have invaded his house.
Nice.
A simple adventure, I like it and might use it actually. Thanks!
God forbid Wizards remembers that high level adventures can be a thing.
Thank you for the gift. It is a great opportunity for me to test the battle map quick play feature. Noticed that succubus! The same I rolled on the Sand Box post. I'm still playing that solo adventure, yet to encounter the Succubus... Who knows, maybe Trisk (my dragonborn bard) will end up in this old mine...
I feel like the post on how to play the adventure is longer than the adventure. I guess it’s cool that the map is part of Maps now but still… The size of the “adventure” is baffling. Could make for a decent side-quest if you need to pad out session time, I suppose.
It seems that the download button in Beyond is not working.
I should specify, it’s the Beyond app on IOS, Mac, and Android that aren’t working
This and the other one-page style adventures in the book are modeled after the DMG24 adventures, which are examples of how to create a skeleton of adventure you can then either improv around or build upon.
The expectation is the DM will take the skeleton and then add meat to it as they need.
I’ve run the 5 DMG adventures now for my groups and I greatly prefer these to the more robust adventures that take more work to customize.
We're aware of this issue and it's being investigated!
Can you please put more effort in and quit with the black and white maps?
So are each of the 50 adventures going to be 2 combats long?
Exactly what I was thinking
This is now what I’m worrying about. I’ve bought the FR books because I love the lore but if this is an indication of what’s inside, this will be the last D&D book I buy
There are for sure high level ones.
If that’s true, it sure would be nice if it was explained this way at any point in this post or inside the ‘adventure’ instead of relying on fans to spread that idea by word of mouth. Making it an entire claimable adventure and presenting it as being on par with any previous claimable product just rubs me the wrong way, even if it’s free. If I wanted the *idea* of an adventure, there’s so many other ways to go about it.
Also, I‘m of the opinion that almost all the adventure examples in the DMG are more fleshed out than the one provided here, with more context, encounters, roleplaying opportunities, and rewards. In addition, the dmg never actually claims those adventures require building upon- only promoting the idea that it’s perfectly acceptable to do so.
TL;DR: My point still stands.