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!

Blackstone Cave was once a smugglers’ lair, but it was cleared out decades ago. Now there are strange noises coming from the cave, and local authorities are afraid smugglers and bandits have taken up operations again. What will the adventurers find? More importantly, will they be able to survive the machinations of the Mad Dragon Priestess? A straightforward dungeon crawl with combat and opportunities for role-playing. The party is tasked with investigating strange noises coming from Blackstone Cave, an abandoned smuggler's lair. They find kobold cultists have moved in, but they're not the average dragon cultists.

Sightings of a large Green Dragon have become more and more frequent and the shipping lanes are becoming regular targets. The duke has sent a military contingent but no word has come from that group. Is your party ready to lend a hand against an extremely dangerous foe?

Far north of the Denali homeland is the Archipelago of Tyr and home to dangerous seafarers. Tyr is well-known as the land of the Minotaur that does allow some foreigners to visit albeit with less than perfect hospitality. Originally used as a one-shot with the Denali campaign characters, King Pellet sent the party north to investigate a trade deal and look into reports of some type of incendiary weapon…

Through seven gates lie seven realms. In seven realms stand seven guardians. With seven guardians lie seven symbols. From seven symbols comes one key. Alpahaks the Dark desires that key, by which he plans to release death and chaos into the realms of man. Your party may be all that stands between life and death. Will you heed the lunatic ravings of a dying madman? Travel to the top of Guardian Mesa, and enter the Septahenge. Gather the mystic symbols, create they key, and defeat the Carnifex, before it's too late... TSR 9174

Beneath Castle Bergfried lies the vault of the grief-struck Baron – heavily infested with a crystalline virus from the past. Here an adventure party must choose between rival forces that seek to explore the vault and decide the future of the Inside World. ‘Vault of the Mad Baron’ is the second installment in a series of three modules in the Inner World. It can be played as a stand-alone adventure or be added as a small barony to an ongoing campaign. The scenario can be used with Swords & Wizardry or any other early variant of game rules and is suitable for PCs level 2-5. Inside you will find: A 60+ page old-school module with a layout optimized for fast and easy interfacing. An adaptable barony complete with town, castle and dungeon. Unique districts with encounters and sights. 6 major factions fully detailed with headquarter, plans, and missions for the PCs. Detailed description of a castle and associated dungeon levels. Downloadable maps for both players and the Referee. Locations allowing the PCs to travel to another era within the setting. Unique new creatures and magic items.

You are Erystelle of Dorneryll, famed elfin champion and magic-user. After years of adventuring, you have come home to the Emerlas - the hauntingly beautiful elfin woodland at the tip of Canolbarth forest. A place of legends and of peace. The journey has been long, but soon the winding forest track will bring you to Dorneryll, the majestic oak tree home of your childhood. Ahead, you glimpse a plume of smoke curling lazily into the sky. Dorneyll is close, and your mind floods with thoughts of home. Suddenly, your reverie is shattered! The thin plume of smoke is gone, an in its place a column of red flame leaps high among the trees. Dorneryll is under attack! Gripping your lance, you urge your mount into a gallop. Starbow surges forward; your war dogs close on her heels... Blade of Vengeance is an adventure for one player and one dungeon master, featuring a lone elf against the forces of evil. Can you save the Emerlas from destruction? The answer waits inside. TSR 9108

A desperate refugee emerges from the earth's depths in shadow-cloaked Nidal with an urgent pleas. A new faction in the subterranean dark folk city of Lyrudrada -- a wicked cult called the Reborn -- seeks a fabled artifact called the Cradle of Night. Vanished demigods of the Shadow Plane once used this artifact to craft the elusive caligni race, and the Reborn want to use it to shroud the world in darkness once more. Cursed with the stain of shadow, the heroes must battle their way through the tomb of an ancient horselord chieftain before descending to Lyrudrada. Plots and schemes run rampant in this city riven with political upheavals and back-alley bloodshed, and the heroes must collect allies and information to confront the Reborn in their fortified fane. With the mysterious masters of the caligni race arrayed against them, can the heroes hope to shed their shadowy curse and claim the Cradle of Night?

Important: The adventure is 1e but it has monster conversion notes for D&D 4th edition The town of Highport, once a human community overlooking Wooly Bay from its perch on the northern coast of the Pomarj, fell prey to hordes of humanoids swarming out of the jungle-covered hills surrounding the settlement. Though the orcs, goblins, kobolds, ogres, and gnolls razed much of the place in their ferocious rampages, the smoldering ruins they left behind soon became a new kind of community, a place of trade between the humanoid “locals” and the unsavory human traders who have no compunction about doing business with them. Slaves are a commodity in ready supply in Highport’s market, since many pirates raid up and down the coast of the bay, putting fishing villages to the torch and filling their holds with captured refugees. Slavery has become a thriving business in the town, and rumors abound of a cartel of Slave Lords who run things from behind the scenes, filling their coffers in secret from the buying and selling of human chattel. The trade has become so prolific that the good folk to the north have grown tired of these depredations and decided to fight back. Forces of righteousness and honor have recently descended upon Highport, some openly and others in secret, in various attempts to destroy the machinations of the Slave Lords and abolish the abominable enterprise that has taken far too many loved ones from home and hearth. One such doughty servant of goodness is Mikaro Valasteen, a cleric of Trithereon. Mikaro slipped unnoticed past the crumbling walls of Highport with a single mission: to rescue and transport as many slaves to their freedom as possible. Mikaro and a handful of faithful assistants located a number of escaped slaves—as well as rescued a few more not sufficiently restrained and guarded—and shepherded them through the gates and beyond the reach of their humanoid tormentors, returning them to their lands and homes. This covert freedom brigade enjoyed remarkable success early on, since the servants of the Slave Lords were often lax in their vigilance and sloppy in their efforts to prevent loss of the “merchandise.” After one too many shipments never made its destination, the humanoids stepped up their security and the normal channels of escape from Highport closed to Mikaro and his team. He cannot risk exposure by smuggling the freed slaves through the gates as merchandise any longer, since shipments of goods are now regularly stopped and checked. No longer able to free the slaves in that manner, Mikaro began hiding his charges in an abandoned villa in a particularly rundown part of the town. Although they are safe for the moment, their numbers have grown unmanageable, and the priest fears it is only a matter of time before someone slips up and brings slavers to their doorstep. Ever more desperate to find a new means of escape from Highport, Mikaro has started work on a plan that is both daring and dangerous. He intends to use a series of old sewers coupled with natural caverns running beneath the town as an escape route to the sea beyond the walls. But he needs someone to clear out the creatures and pitfalls he knows lie within. Pgs. 2-27

After hiring a group of brave adventurers to help him "acquire" a beholder specimen, the mage Velinax disappears! Rumors blame an insidious thieves' guild called the Unblinking Eye for this turn of events. Why would the Unblinking Eye wish to "take care" of the mage? Why does the guild want to speak to anyone involved with Velinax? Finally, what dark goal does the guild truly intend to accomplish? Finding out the answers to these questions will lead doughty adventurers straight through the shadows of a crafty thieves' guild and onto the threshold of an even deeper and more dangerous darkness. "Eye of Doom" is the second 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 concludes in "Eye to Eye." TSR 9530

Some dozens of leagues to the north and west of the STEADING OF THE HILL GIANT CHIEF (Module G1 of this series), amidst the tallest mountain peaks, is the stronghold of Grugnur, Lord of Frost Giants. As frost giants have been amongst those who have been in the reaving bands, the party is to deal with them as the hill giants have been dealt with. Death and destruction are to be meted out to the frost giants in the same measure they gave to the peoples below. This module contains background information, referee's notes, two level maps, and exploration matrix keys. It provides a complete module for play of ADVANCED DUNGEONS & DRAGONS, and it can be used alone or as the second of a three-part expedition adventure which also employs DUNGEON MODULE G1 (STEADING OF THE HILL GIANT CHIEF) and DUNGEON MODULE G3 (HALL OF THE FIRE GIANT KING). TSR 9017

For centuries, the volcano now called Mount Zulgar was the battlefield of a conflict between red dragons and frost giants. The final battle saw the extinction of the dragons and only a handful of living giants. The dwarves of the Frostblood clan used this opportunity to drive out the giants and take the mountain as their own for its rich deposits of gold. 100 have passed, and now the volcano bubbles to life once more, bringing with it all manner of fiery creatures. Miners have been killed, and implike monsters assault the citizens of the mountain. The master of the goldsmith's guild has called upon your party to snuff out the Fire in the Frostblood Mine. Fire in the Frostblood Mine is a 4-5 hour adventure for 4 3rd-level characters. It can be used as either a one-shot or as part of an ongoing campaign. This module includes a single-session adventure to introduce your players to the strange creatures of the inner planes, maps of the two levels of Frostblood Mine, and a unique sentient magic item.

The duchy of Velen is a bastion of law and order in an otherwise untamed land. Its ruler, Duke Calchais, holds his citizens and visitors to his city to a high standard of conduct. When Velen's harbormaster is murdered, the duke enlists the aid of adventurers to see that justice is served. Was the harbormaster a victim of larceny gone awry, or is something more sinister afoot in Velen? Murder in Velen is a 4-hour standalone adventure set in and around the port city of Velen, which is located in the peninsula nation of the same name in southwestern Faerûn. Velen is designed for a party of five 10th-level player characters, but it can easily be scaled by adding or removing creatures.

An ancient power has started to rise and threatens a small town. Venture into dark caves and put an end to the power creating the skeletons within. Intended for 6 characters level 5-10 Approximately 6 hours of play Featuring 7 new monsters A transforming boss encounter Easily set in your own world, Theros, or Ferun Can be run with the basic rules Full of unique art a map handout for your players and maps for your VTT You can lean into horror or you can keep it PG. Suitable for gamers young and old for one long session or three shorter sessions.

The Wrath of the Righteous Adventure Path continues with “Sword of Valor,” by RPG Superstar Neil Spicer. The PCs, now invested with righteous mythic power, are poised to become the greatest heroes of this seemingly endless war against the demons of the Worldwound… provided they can succeed at their first mission. The citadel city of Drezen was once a symbol of the First Crusade’s triumph against the Worldwound, yet when a larger horde of demons attacked, they shattered Drezen’s defenses and captured both the citadel and the crusaders’ symbol of power. Can the PCs help lead an army north to reclaim Drezen and recover this potent relic, or are they marching their comrades and followers to a gruesome demise?

An extended campaign for the Midnight setting from Fantasy Flight Games. Crown of Shadow is a desperate quest across Eredane, ranging from the depths of the Kaladrun Mountains, across the grim expanse of the occupied plains of Erenland, through the secretive underground of the Eren River, and finally into the heart of the Whispering Wood itself. Published by Fantasy Flight Games.

The town of Byr is in need of heroes. Residents of the town of Byr have been kidnapped. Some think it was marauding Hobgoblins, but a grizzled and crippled veteran who helped to drive the Chagmat (monstrous spider-people) back many years ago believes that the Chagmat are back. Their forgotten temple is believed to be up on Little Boy Mountain. He argues that the mountain is where answers, and the missing townsfolk, can be found. Pgs. 33-48

The Iron Gods Adventure Path begins with "Fires of Creation," an exciting new adventure set in Numeria, land of barbarians and super-science! In the town of Torch, the settlement's unignorable tower of violet flame has gone out. The only clue to its disappearance is a newly discovered cave dug nearby. Are the heroes bold enough to unearth the otherworldly secrets that sleep beneath the city and reignite the fires of Torch? Or will their first foray into Numeria's ancient mysteries be their last?

You are aromantic, and your best friend is aromantic. There’s only one thing to do: go and fight a dragon. Two Aromantics Spend an Entire Day Doing Everything Except Experiencing Romantic Attraction is an unapologetically no-romo single-player adventure for a level 4 character. It should run for approximately 3-5 hours. This adventure requires at least some knowledge as to what it means to be aromantic. There are many useful resources available online for those unfamiliar with this term.

Along the windswept sea coast are several natural stone columns, sacred to the Sea Goddess Pelagia. One of these pillars is the tower of a reclusive wizard, a devout follower of Pelagia. But the wizard has gone missing, and the locals suspect foul play. Surely a powerful wizard must have many enemies! A band of fledgling heroes is tasked with entering one of the Pillars of Pelagia to contend with all manner of magical defenses, while uncovering cryptic clues to the wizard’s disappearance planted by an unknown benefactor. The insidious evil plot they uncover could spell eventual doom for the surface world. But the Pillars are sacred to Pelagia, and the Sea Goddess herself might just play a minor role, aiding the heroes as they attempt to thwart a nefarious plot.