In the city of Waterdeep rests a tavern called the Yawning Portal, named after the gaping pit in its common room. At the bottom of this crumbling shaft is a labyrinthine dungeon shunned by all but the most daring adventurers. Known as Undermountain, this dungeon is the domain of the mad wizard Halaster Blackcloak. Long has the Mad Mage dwelt in these forlorn depths, seeding his lair with monsters, traps, and mysteries—to what end is a constant source of speculation and concern. This adventure picks up where Waterdeep: Dragon Heist leaves off, taking characters of 5th level or higher all the way to 20th level should they explore the entirety of Halaster’s home. Twenty-three levels of Undermountain are detailed herein, along with the subterranean refuge of Skullport. Treasures and secrets abound, but tread with care!

Swamp creatures! They surround you now as you move slowly through the gurgling muck. How will you reach Quagmire now? Each day, the hungry sea swallows more of the ancient port city. A fierce fever ravages its people, and now - these foul monsters! Their beady eyes glimmer from deep within the tangled vines. Are these the creatures that have blockaded the city, turning away the ships that are the city's lifeline? Are these the scum that are starving the people of Quagmire, threatening an entire race with extinction? These creeps? Let's clean this jungle out! Quagmire includes a large-scale map that expands the D&D world and introduces new areas to explore. The adventure also includes new magic items and a special, expanded monsters section. Hurry! Hoist your colors, saddle your horse - go, before the city by the sea becomes the city beneath the sea! TSR 9081

"The creatures are just too intelligent, too crafty, and too strategy-minded to "rampage." Rampaging brings the wrath of oath-bound knights, powerful mages, and divinely-protected priests. Why would a dragon want such attention, unless it had some special secret, or unless it was insane? Or both. The northern reaches of the Derideth Swamp were once plagued by a rampaging dragon. This black dragon, named Storamere, took a mad glee in attacking human villages, wiping out orc camps, driving off the lizardfolk, and decimating farmland. He met his untimely end, though, in an ambush devised by the monks of the Order of St. Chausle. Storamere died with a curse upon his draconic tongue: "you could not have defeated me in my lair," he told his slayers. "I am forever invincible in my lair." Now Storamere is back, with a horde of his misshapen half-dragon offspring, to have his vengeance. All that remains of the once-heroic monks are two old men driven mad by their last encounter with the black dragon, so it falls to a band of adventurers to again defeat the mighty dragon -- this time in his palace, where the boastful Storamere claims he is at his strongest." Includes maps and damage rules for navigating Storamere's lair, a semi-solid palace made of a dangerous, corrosive liquid five feet thick and located on the ethereal plane. Most of the monsters in the lair have the Half-Dragon template applied. Published by Atlas Games

Deep below the surface lies an ancient beholder city called Ilth K'hinax. In times past, hundreds of beholders called it home - until simmering rivalries within their society exploded into warfare. The few survivors fled, leaving the city deserted for hundreds of years. However, the story of Ilth K'hinax's glory was passed down from one generation of beholders to the next. Now, after countless years of self-imposed exile, the beholders are back! After securing the city, the hive mother of Ilth K'hinax implemented a plan to wipe out all the beings living above it. Unfortunately for the beholders, several facets of the hive mother's plan have been revealed through the exploits of a party of adventurers. Now, this group of heroes must meet eye to eye with Ilth K'hinax's newest occupants in an effort to stop the hive mother's pernicious plan! "Eye to Eye" is the last of three adventures featuring the nightmarish beholder. It can be played as an individual mission or as part of the series that began with "Eye of Pain" and continued in "Eye of Doom." TSR 9536

The Dwarven clans are in chaos, and a powerful host of goblins stand poised to sweep over the land in a wave of death and terror. Only the Axe of the Dwarvish Lords- one of the most powerful weapons ever created by the dwarven race- holds the key to ultimate victory against the massing humanoids. Can the PCs brave the labyrinth of an abandoned dwarven stronghold to find the Axe? TSR 11347

The legendary spellcaster Emirikol the Chaotic has turned the region into a wild magic zone, a place where all magic goes awry. The only way to put things back to normal is to retrieve the source of the problem deep inside the Ooze Chambers of Emirikol! This adventure is for 4th level characters and can be run on its own or as part 3 of the Litany of Arrows adventure path. This adventure contains, 2 pages of new magic items, 8 new monsters and NPCs, a full write-up of Bwimb II, the Paraelemental Princess of Ooze, an entity referred to in many D&D products but never fully fleshed out and stats for the 3rd edition iconic heroes Regdar and Mialee, who play a major role in this adventure. It's got over 10 pieces of original art, full color maps, tagged and untagged, and a special handout for the player who obtains the Ooze Fist of Emirikol. This adventure builds on the story begun in the platinum-selling Castle of Corellon and the follow-up, Warpath of Gruumsh.

The interrogation of the rogue wizard, Askalan, by the magocracy of Bemmea exposed his creation of unstable magical artifacts built in a ruined ley-line conduit. This Leystone, built by the mages of Vael Turog, had been dormant for centuries until Askalan discovered a way to power it. Now, after his untimely death, the Leystone's unstable power continues to grow at the edge of the Western Wastes. The magocracy hires the characters to find the awakened Leystone, uncover the mystery of this growing power, and return the source of the power to Bemmea for study.

One of four magical, snow white pearls protecting Tarylon has been stolen! And you, a Companion level elf, are responsible for its safe keeping. Now the very existence of your beautiful village is threatened unless you can find the powerful pearl. Milgor, the evil wizard with an evil sense fo fun, challenges you to find the pearl, and return it to Tarylon. This adventure uses a "Magic Viewer" - a piece of colored film - to reveal the hidden results of the player's choices. This includes encounters, puzzles, and traps. TSR 9128

The renowned adventuring company Acquisitions Inc. hires you to infiltrate a castle--but not just any castle. This is a flying fortress built by the cloud giant Count Stratovan, who is currently preparing to destroy the Sword Coast. Your mission is to meet with his son, who claims to want to prevent the war and establish peace between the giants and the small folk. If you can learn whether the son can be trusted, discover the secrets of the castle, and ... well, survive, you too can earn acclaim with Acquisitions Inc.! Released as a Fathom Events exclusive at movie theaters streaming the PAX 2016 Ac. Inc. game. Legal for AL play.

A short plug in adventure that can be used as part of a larger campaign or run as a one shot for 3-4 Tier I or II characters. The Twin Temple was once a place where the people of the city can come to and get help and guidance, but change has come to the Twin Temple now. The characters seek to find what poisons this well and how they can get to the bottom of it and who is responsible. This adventure is ideal for for 3-4 tier I and II characters. Playable as a one shot or the start of a larger campaign. The characters are sent to investigate the Twin Temple and see if they can find the root cause of trouble with various clues and encounters in most rooms this adventure is customizable and adaptable to fit into most campaigns as needed.

Unwrap this player-driven winter mystery for four to five characters of 5th level. No more railroads. Every decision matters and changes how the story unfolds. Branching paths, multiple dungeon entrances, and a myriad of potential conclusions—this adventure provides endless fun with rewarding choices and a range of challenges for any character. This product includes: - 4 to 6 hours of play packed into 15 pages - High-resolution VTT maps of the temple - 6 new monsters, including Brain in a Jar and Workshop Devils - 7 stand-out NPCs with clear motivations players will love or love to hate - The perfect adventure for the holiday season, including a Midwinter festival with two classic games reimagined using D&D rules—snowball fight and charades - All magic items and stat blocks detailed in the appendices for easy reference Content Warning: Animal mutation, blood, enslaved devils, undead, torture,

Stop evil cultists of the Crushing Wave. The party rescues a member of the Brotherhood of the Cloak in Mulmaster (local mage guild); Drayson Fivestar. Drayson asks them to investigate the murder of his colleague. After some urban investigation, the investigation leads to a former guard tower of the Zhentarim, now occupied by elemental cultists. The tower was submerged in mud, but recently uncovered. The party faces of with the cultists. (Large page count, but feasible as a one shot after some editing, will probably take two sessions at most)

Having put down a rising of giants, it was discovered that the motivating force behind their depredations was that of long-forgotten evil - the Dark Elves. Determined to seek out these creatures, a body of doughty adventurers mounted an expedition to learn the strength of the Drow and bring retribution to them (DUNGEON MODULE D1, DESCENT INTO THE DEPTHS OF THE EARTH). This module contains background information, a large-scale referee's map with a matching partial map for players, referee's notes, special exploration and encounter pieces, a large map detailing a temple complex area, encounter and map matrix keys, and an additional section pertaining to a pair of unique new creatures for use with this module and the game as a whole. A complete setting for play of ADVANCED DUNGEONS & DRAGONS is contained herein. This module can be played alone, as the second part of a series of three modules (with DESCENT INTO THE DEPTHS OF THE EARTH, D1, and VAULT OF THE DROW, D3), or as the fourth part of a continuing scenario (DUNGEON MODULES G1, G2, G3, D1, D2, D3, and Q1, QUEEN OF THE DEMONWEB PITS). TSR 9020, From 1978

This is the laboratory of High Alchemist Sureves Epans. He led a group of alchemists in research for many years, but recently there was a bit of a mishap. He discovered his wife was cheating on him with one of his employees and while in a drunken stupor trying to create a discreet potion to deal with the two of them, he let loose an infectious plague on the lab which turned all but a lucky few in the facility into shambling husks of their former selves., fused with their own creations as their minds turned to know but one thought - rage. This dungeon has rules to modify all encounters for a group of players levels 4 through 6 and is intended for a party of four. If you have more players, feel free to adjust the difficulty up one level for each additional player or simply tune the monsters to your needs. This dungeon contains many original enemies, a unique puzzle, and an environment that is meant to bring a sense of terror and anxiety on your players. I consider this to be the Horror-themed adventure of the module so feel free to add some creepy music and extra details along the way to bring the area to life (or death).

A long, perilous ocean journey behind them, the crew of the Sea Wyvern finds itself shipwrecked on the Isle of Dread. Their destination lies well over 150 miles to the south, miles heavy with the threat of the island's terrible inhabitants. Yet the unknown enemies are far more sinister, for more than just dinosaurs hunt the vast jungles. Before long, a cunning fiend picks up their trail, and its duplicitous master demands their sacrifice. "Here There Be Monsters" is the fourth chapter of the Savage Tide Adventure Path, a complete campaign consisting of 12 adventures appearing in Dungeon. For additional aid in running this campaign, check out Dragon's monthly "Savage Tidings" articles, a series that helps players and DMs prepare for and expand upon the campaign. Issue #352 of Dragon explores the Isle of Dread in detail, providing a complete ecology of the island and the writing of Larissa Vanderboren. This article can be used as a player handout to represent the journals the group recovered from the Vanderboren family vault in the first adventure in the Campaign. Shipwrecked on the Isle of Dread! Faced with a dangerous journey, the PCs must escort a ragged band of castaways through monster-infested wildlands in order to reach the safety promised by the colony of Farshore on the isle’s southern tip. Pgs. 32-60

A deadly rumble in the jungle. The wicked Leopard Men might have loads of treasure - but no one has ever met one and lived to talk about it. The Leopard Men are a tribal cult in the jungle who worship the wicked leopard god. They stalk at night looking for suitable sacrifices to their god. A merchant asks the PCs to destroy the Leopard Men to improve his trade agreements with other jungle tribes. Their reward for doing so is all the accumulated wealth of this tribe. The party will investigate the cult by travelling through several tribal villages. The cult members are hidden in these villages, watching for future sacrifice victims. The adventure ends with a battle with the leader of the Leopard Men and a spirit of the leopard god that is summoned. Pgs. 13-27

The town of Somber Hill is a quiet settlement in the foothills of a mountain range. A few days travel from the nearest city, the people of Somber Hill are a humble and self-reliant bunch. Unbeknownst to its people, the small town hides a sinister secret, some of the residents of Somber Hill belong to a cult that worships a long dead entity. Known only as The Dark One by their followers, this ancient being once called Old Somber Hill home. Their dark master is entombed in the catacombs beneath the town, and the cult hopes to resurrect their master with a blood sacrifice. The Crypt of Somber Hill is a Setting Neutral adventure and thus can be easily included in any existing story-line with minor alterations and adjustments or outright slotted into any existing campaign setting.

Deep beneath the city streets lie the sprawling tunnels of a derelict sewer. Under the command of a vicious ringleader, a posse of thugs have claimed a forgotten undercroft as their own. In a shadowy mockery of the city’s grand markets above, they have set up their own trade, dealing in flesh to vile creatures and evil men. Published by Arcana Games

In the Tower of Yladhra the Grim, a party of adventurers braves the dangers and puzzles of an enchanted wizard's tower, and finally confronts the wizard herself. The adventure is designed for a party of five adventurers between levels five and eight. It features: Encounters by Level - Varying types and quantities of creatures are suggested based on the party's actual level, allowing each encounter to present the appropriate challenge to the party. Encounter Notes - Suggestions for how to run combats are provided for game masters who place an emphasis on engaging, tactical battles. Inciting Action - Suggestions for ways to present the adventure to players are provided. Aftermath - Ideas for future adventures based on this one. Unique Magic Items - New magic items to introduce into a campaign. Ease of Use - The format and style of the document allows the game master to find information quickly while running the game at the table. Detailed Maps - What's an adventure without maps? Not much else to say here.

Dungeon Masters Kit - Number 1 Palace of the Vampire Queen For three centuries the peasants of the Dwarvish island of Baylor have feared the raids of the Vampire Queen and her minions. Sweeping down at night from the palace in the shrowded peaks of the island, they range even further in their search for blood. And not only blood - the children of dwarf peasants often disappear if they are so unfortunate as to be out at night. Even the cities are no longer safe. The most recent victim was the Princess of Baylor, daughter of King Arman, who was taken in a midnight raid on the capitol city of At Toe within past weeks. King Arman has offered fabulous riches and land holdings with titles to the person or persons who can brave the stronghold of the Vampire Queen and return his daughter to him alive and well. But, in truth, he holds little hope. For even King Arman, Ruler of Baylor, Defeater of the Ten Orc Tribes, is afraid in his heart to face the Vampire Queen. Published by Wee Warriors, Distributed by TSR