Undermountain: The Caverns of the Many-Legged is an adventure detailing a hidden mini-level for Dungeon of the Mad Mage for characters of levels 12-13. It uses some of the story and lore of that book, but it can be incorporated or dropped into any setting or homebrew campaign. In a hidden part of Undermountain, former slaves feed their fat, monstrous queen who is fixated on revenge. A broken drow house has finally found a place to call home – only to become abominations. And a massive beast slithers, hunting for anything to satiate its hunger and quell its madness. Welcome to the Caverns of the Many-Legged. Which side, if any, will adventurers choose as they explore this hidden mini-level for Dungeon of the Mad Mage? In this adventure, you will find: a mini-level that can be easily incorporated into Dungeon of the Mad Mage a vivid cast of unique monsters and NPCs, including chitine warriors, a choldrith queen, a spellcasting draegloth, a mad yuan-ti anathema, and others (stat blocks provided for all creatures not in the Monster Manual) locations that could be used or adapted elsewhere, such as a chitine colony and a drider-controlled drow fortress a combination of roleplay, exploration, and combat encounters

When the PCs stumble into the Feywild, they find themselves in the middle of Mithrendain— a glorious eladrin city of grace and beauty. But as the heroes find themselves the target of mysterious attacks, they begin to discover that something rotten lurks in the city’s heart. Sunlight bathes the soaring towers of the eladrin city of Mithrendain. Gentle breezes swirl through wooded parks and along well-kept streets, and in the ancient settlement whos golden hues have seen it named the Autumn City, thousands live in peace and prosperity. For centuries, the fomorian chasms deep beneath the city have stood silent below the great magical seals that closed them in the wanting days of the eladrin empire. Over long years, the folk of Mithrendain have forgotten the dark threats of old, becoming complacent in their tranquility. And so none suspect that corruption lurks at the heart of the city, spreading out from the shadows to taint all it touches. Pgs. 104-128

In the town of Easthaven, a group of adventurers is tasked on a routine mission to resupply an expedition to the Reghed Glacier. But everything is not quite as it seems, and it's not long before the chronographer's misfortunes become apparent.

A wasting sickness creeps through city streets, powerful spells and cures only pausing the disease. Talona’s name is called out in anger as the possible culprit and in prayer for the disease to be cured. Only she knows the truth: An ancient deity’s corpse, sequestered millenia ago by Talona, floats in the astral sea and is the source of this affliction. Will adventurers be able to stop this sickness at its source? And what will they do with the knowledge they discover?

The Sea of Fallen Stars connects the eastern and western sides of Faerûn. Many nations that border shorelines along its vast expanse also maintain major navies and trade fleets. A plethora of creatures and humanoid races typically found in the ocean depths live there, including sahuagin, sea elves, merfolk, and locathah. This is a story about what happens when a normally peaceful species is pushed to the point of open conflict. As elemental forces threaten the safety of the nearby locathah communities, heroes rise from among their number to strike back and defend their homes and families. Locathah Rising is a DUNGEONS & DRAGONS adventure designed for 9th-level characters.

Avalanches are hardly news in Icewind Dale. The frequency to which it is occurring, however, defies logic. What is the cause of this strange phenomenon? What horrors could have unleashed such force of nature with such reckless abandon? Horror Beneath the Frost is a slasher horror adventure set in Icewind Dale, deep within the Reghed Glacier. It features yetis, mind flayers and a boneclaw! The adventure is designed to be easily dropped into: • Any homebrew campaign where avalanches occur. • Icewind Dale: Rime of the Frostmaiden campaign. • Plague of Ancients Seasonal Campaign for the Adventurers League (AL) organized play program. Inside you will find: • A slasher horror adventure optimized for five characters with an average party level (APL) of 8. • Scaling advice for three to seven 5th to 10th level characters. • A printer-friendly version of the adventure. • 4 digital maps importable to Roll20, Foundry VTT and your VTT of choice. Includes gridded, grid-less and printer friendly versions of the maps. • D&D Adventurers League compatible adventure (Dungeon Seed: This Seems Familiar | DC-POA-JL01)

When one of the Lords of Waterdeep asks you to root out a threat to the city, you respond to the call. Prepare for a foray into Undermountain. Part One of the Vampire Hunt trilogy.

Mykon Drift, genius inventor and entrepreneur, has disappeared on the eve of his greatest ever product launch, and nobody seems to know why or where he’s gone. Certain jaded onlookers might think this is for the best, for Drift is a disrupter in the truest sense, and the technomantic marvels he creates often wreak havoc on the guilds and economies of the Sword Coast. But titans of industry like Mykon Drift don’t just disappear for no reason, and his most loyal apprentice is willing to pay to find him. Unfortunately, that apprentice isn’t willing to pay very well, so what they get is the Grib-bits Detective Agency. "The Gribbits Detective Agency Part II" is a Dungeons & Dragons adventure for four 2nd-level characters. It is designed to follow on from "The Gribbits Detective Agency", and should be played in a single sitting.

Welcome to the picturesque village of Eveningstar, nestled at the foot of the Stonelands where the River Starwater winds down a gorge and snakes into the King's Forest. Here, the Knights of Myth Drannor began their famous adventures. Here, the Ladies of the Brazen Blade, The Company of the Singing Sword, The Steel Shield Band, and many other came, clutching royal charters from King Azoun with the ink scarcely dry on the parchment. Some fell, some went on to greatness-but they all came here first; to the Haunted Halls. Despite numerous infiltrations, the Halls have not yet yielded all their secrets or treasures. Many dangers lurk as deadly as ever in dark chambers herein, awaiting new companies of eager-eyed adventurers. Is it your turn to dare The Haunted Halls? Many come, but few survive to again see Eveningstar's beauty. Welcome, then. Enter in, and find in these pages: A challenging introductory level dungeon. A detailed countryside setting, including important local personages, local color, and guidelines for play. Suggested campaign plots and adventures. New spells. New magical items. New monsters. A splendid campaign can begin here. Adventurers in an ongoing campaign can stop by for a memorable visit. Those looking for an underground stronghold may even find a home in the Haunted Halls of Eveningstar. TSR 9354

Your chase to wipe out the vampires of Undermountain leads to the Slitherswamp. The master vampire is close at hand! Part Three of the Vampire Hunt trilogy.

Amid the gales and snowy Earthspur Mountains, the tumbling ruins of the ancient Tempest Mage's tower brood over the village of Windy Valley. When a kidnapper flees into the ruins, it's up to a group of adventurers to apprehend the rogue and save his victim from the vault below. Published by Cold Iron Conventions and Draxtar Games.

In the Anauroch desert, darkness is growing. The followers of the Vile Spore Goddess Zuggtmoy have stolen the dreams of the Bedine Seeress Deja, trapping them in an eldritch artifact. Unless her dreams are returned, the Seeress will descend into madness, and her people along with her.

The Tranquil foothills of the Sword Mountains are quickly plunged into chaos, as a series of earthquakes spread their way through the region. Adding to this danger, bands of vicious, flesh-eating monstrosities have clawed out of the shattered earth, attacking travellers and local residents. Rumours of wealth and riches have drawn the adventurers to the area; little do they know that it is not gold and jewels these monsters protect, but a volatile portal into the Underdark with a disturbing secret.

A powerful new narcotic is making its way through the Spine of the World. Behind it is a secret that could change everything! Explore a lost city and discover the secrets hidden by the gods themselves. (TW: some drug use and the possibility for players to use drugs)

On a nameless, featureless demi-plane the Tarrasque rages across an all-encompassing nothingness. Last seen on Faerun a century ago during the cataclysm of Odobaz, the battle mage order of the Eldritch Storm sacrificed itself to banish the mighty titan to its demi-plane prison. Now a foul power emerges in the High Ice and nightmare visions of the Tarrasque trampling cities wrack the minds of the living—can your adventurers defeat the Horror Under the Mountain?

Modrons, Mephits & Mayhem is a Dungeons & Dragons 5E tier 2 adventure for three to five characters of levels 5-8. It is primarily set in a modron-designed research facility that has been abandoned by its creators but retains guardians that are still active. Additionally, two groups have broken into the facility with their own goals in mind; the githyanki and their red dragon cohort are antagonistic and provide the main source of combat in this adventure, while a modron traveling with a few mephits may prove friendly although ultimately troublesome. Inspired by adventure games in which the protagonists explore baroque, esoteric technological fortresses, and seeded throughout with factions that sport competing and often bizarre goals, Modrons, Mephits & Mayhem is sure to test the mettle of any group of players, and will provide endless amusement for Dungeon Masters seeking something different from the typical hack-and-slash dungeon crawl. This 70-page adventure features: *Two wilderness areas, random wilderness encounters, and a massive, interlinking 3-level dungeon filled with bizarre puzzles. *Ancient machinery powered by elemental portals, all of which can be activated, turned off, or manipulated by the player characters and the various factions within the modron facility. *Planar creatures like githzerai and githyanki, modrons, mephits, and elemental guardians, skillfully placed into the High Moor area of the Forgotten Realms setting. *Monsters and NPCs that have detailed (yet easy to run!) personalities and goals that will provide tons of roleplaying opportunities. *Notes and sidebars on running the NPCs with added complexity, or simplifying the NPCs' motives to make the adventure more straightforward. *Tactics notes for every single encounter! *An appendix that features all monster stat blocks, and both tagged (DM) and untagged (Player) versions of the dungeon maps. *Wilderness hex map by Elven Tower Cartography! Three interlinked dungeon levels by Dyson Logos...and one of them is a flying fortress! Cover art by Patrick E. Pullen!

Not Everything is what it ssseems. Can you stop the raids of the Three Towers Tribe? Second in the Mere of Dead Men series, your Patron, Sir Justin sends you to investigate Mornhaven Towers and the rumors that Lizard Men are plundering travelers on the High Road. Set in the Mere of Dead Men region of the Forgotten Realms. Pgs. 34-47

Strange calamity has come to the Moonstone Reach. What was once a foreboding forest is now completely underwater, the gods Umberlee and Mielikki locked in dispute over the wondrous biome. Umberlee calls forhomage and claims dominion over what she sees as rightfully hers.

With the rise of Tiamat threatening to destroy the world, the undead masters of Thay have approached the Council of Waterdeep to discuss the possibility of an alliance. But the Dragon Queen has agents everywhere, even in a remote keep on the Thayan frontier. A vampire noblewoman has been killed, and the characters are the prime suspects. To clear their names, they must find the real killer, and learn how even the undead may die… Murder in Thay is a 4-6 hour Dungeons & Dragons adventure for characters of levels 13-14, for use as an expansion of the "Mission to Thay" chapter in Tyranny of Dragons or as a standalone module. This publication comes with a map pack, a new magic item (the pyx of soul capture), and monster and NPC stat blocks, including two new creatures, the fearsome dread centurion and the not so fearsome undead cat!

The Hag's Hexes is a 66 page guide designed by Dungeon Masters Guild luminaries like JVC Parry and Janek Sielicki alongside rising stars and old stalwarts like Matt Butler, Matthew Gravelyn, and Tim Bannock. It was created with one thing in mind: to make hags more than the sum of their (often meager) Challenge ratings, giving them the mechanics, roleplay potential, and weird magic that can inspire campaigns, lay low kings and warlords, and potentially ensnare unwary Player Characters into campaign-changing curses or long-term bargains that force them into terrible moral quandaries! Split into five chapters, the authors have provided everything a DM needs to terrify their players for years to come. The Bestiary features over a dozen monsters; some are new hags, some are their minions or even their mobile lairs, and one of them -- the Shaitan AKA Desert Hag -- was featured in Monsters of the Guild! Bargains & Curses is a chapter filled with ideas that can kick-start campaigns, threaten valued NPCs, or put Player Characters' very existence and morality at stake. Chapter 3 includes two dozen items of wonderment, weirdness, and dread, ranging from fairy tale-inspired items of whimsy to terribly cursed items of horror. Chapter 4 is titled "Filthy, Vile & Downright Dirty" and provides dozens of roleplaying tips to make hags come alive, new mechanics inspired by and expanding on Volo's Guide to Monsters (coven spell lists, aunties, grandmothers, alternative coven members), and ends with useful combat tactics for each of the hags from the Monster Manual and Volo's Guide, as well as tactics for covens. Finally, Chapter 5 presents five encounter groups (with sub-encounters) to give you quick story seeds and monster lists that you can put together in minutes to create a single encounter or to inspire a full campaign, and ends with three full-length adventures -- each with 3-5 encounters -- that showcase many of the new monsters, rules, magic items, and so on that appeared in earlier chapters. Each of these adventures comes with an encounter map meant to act as inspiration for hag lairs, and they include useful mechanical ideas for terrain effects and descriptive keywords listed directly on the map for added inspiration and easy customization! Designed by Tim Bannock. Written by Matt Butler, JVC Parry, Janek Sielicki, and Tim Bannock. Edited by Matthew Gravelyn and Tim Bannock. Cover Art by Elena Naylor. Cartography by Tim Bannock using Inkwell Ideas' Dungeonographer (Dungeonographer is copyright Inkwell Ideas). Layout & Graphic Elements by Elena Naylor with Tim Bannock. Interior Art by Arcana Games, Bruno Balixa, David Lewis Johnson, Dean Spencer, Earl Geier, Filip Gutowski, Jacob E. Blackmon, Joyce Maureira, Petr Kratochvil, Jayaraj Paul, Brian Brinlee, and Wizards of the Coast.