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!

A Villain with a Vison A stolen jewel leads to the heart of the swamp, where one man’s thirst for vengeance threatens to destroy an entire town. Pgs. 68-92

Your foe seeks to unlock the Iron Door beneath the Peaks of Flame and open the way for the Eater of the World. You must find your way through the maze of tunnels and stop them, or it will be the end of all things. Part Four of the Broken Chains Series.

An ancient gate to the abyss lies undisturbed in the Valley of Obelisks. Sinister forces seek to reactivate the gate for their own ends, can the heroes stop them in time?

The Adventurers arrive at a drow outpost in the Underdark. They must either dispose of the drow or ally with them against the invading legions of Orcus!

This deluxe adventure takes heroes into the ruins of Gardmore Abbey, a monastery that was once the base of a militant order of paladins devoted to Bahamut. According to legend, the paladins brought a dark artifact back from a far crusade and stored it in their abbey for safekeeping, and evil forces gathered to assault the abbey and take it back. What the legends don’t tell is that this artifact was actually the Deck of Many Things, a force of pure Chaos. This adventure brings characters into the extensive dungeons beneath the ruins - dungeons that are warped and twisted with the raw forces of Chaos surrounding the cards of the deck.

A cadre of githyanki has come to the world in search of rich plunder and soft targets. It has set up a base in the lower levels of an abandoned fortress ruin. A caravan of travelers spotted a githyanki while it hunted for food. Rumors of an invading army from the Astral Sea quickly spread through nearby towns, and the PCs have arrived to investigate. Pgs. 84-89

The first savage tide has already touched the mortal world, yet none who live today recall this time of red ruin. Unleashed from the cruel heart of a fell seed known as a shadow pearl, this savage tide swept over an ancient city perched atop the crown of a remote island. The tide transformed beggar and noble, merchant and thief, resident and visitor into feral, ravenous fiends. The fruits of centuries of labor came crumbling down in a matter of days, and when the survivors tried to stem the tide by destroying the pearl, the resulting blast of power sunk their city into the boiling lake of death. Through it all, the Abyssal architect of the savage tide watched, taking pride in the ruin. When the tide's final ripples had faded, what was left became known as the Isle of Dread. Now, after a thousand years, the true masters of the Isle of Dread look upon new targets, new cities beyond the horizon, compelled by the hateful will of their demonic lord Demogorgon to prepare for the coming glory. This time, the doom will not be limited to one hapless city. This time, all of civilization waits unknowing on the shore, blissfully ignorant of what the incoming tide brings in. "There Is No Honor" is the first chapter of the Savage Tide Adventure Path, a complete campaign consisting of 12 adventures that will appear in the next twelve issues of 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 #348 of Dragon kicks off this series with details on six affiliations based in Sasserine that your players may wish to join. And if you're running Savage Tides in the Forgotten Realms or Eberron, make sure to check paizo.com for the latest conversion notes for each adventure. The Savage Tide Adventure Path debuts as a new band of heroes confronts exotic monsters, undead pirates, and a sinister guild of thieves on the cusp of unleashing a murderous coup. Pgs. 14-46

Years ago, brave heroes put the denizens of the Temple of Elemental Evil to the sword. Now, dark forces whisper again in the shadows of the once-deserted temple - forces far more insidious and dangerous than any sane person could dream. Evil has risen again to threaten the village of Hommlet. A continuation of the original AD&D Temple of Elemental Evil, made for a party of 4th-level adventurers, taking them up to 14th level.

The Approaching Swarm is a short adventure for four 9th-level characters. The party can consist of any mix of classes, but it should include at least one character that is good in wilderness settings, such as a druid, ranger, or barbarian, and at least one cleric. This scenario should prove a reasonable challenge for characters from 8th to 10th level. The adventure takes place in a swampland that is near a small settlement. The characters attempted to cross back through the swamp to their base of operations. Along the way, they may have got stuck in mud and probably were attacked by a variety of flying insects. They arrive just a bit too late to stop a massacre that occurred back at Crivdall -- the fort is ruined and it appears that almost everyone is dead or missing. Aleretheral, an insane half-orc druid who has mastery of vermin and insects, attacked Crivdall with his insects. He has often infiltrated Crivdall by posing as a harmless elf hermit who lives in the wood. In reality, he wants the settlers destroyed and out of his swamp.

An anthology containing 13 individual adventures designed for players from Level 1 to 14, this DnD 5e book is unique in that it explores a variety of lands inspired by real-world cultures. This includes worlds based on the mythologies and histories of Central America, Vietnam and even the American South.

A succubus with an unquenchable lust for power is turning the Cage into a ripping madhouse. And the Lady of Pain ain't pleased. . . . Something's foul in Sigil, berk. A mad slasher prowls the streets, leaving a trail of bloody clues in his wake. Leatherheads boldly court the Lady of Pain, longing for the sharp touch of her shadow. Even the silent dabus're acting barmy, a sure sign that the Lady herself is uneasy. Are these strange events tied to a madhouse full of spell-touched sods ready to slip the bonds of mortality? A curious body'd better step carefully. After all, the dead-book's full of fools who wished for power?or got in the way of another berk's wish. Harbinger House is a Planescape adventure for four to six characters of 4th to 7th levels. From Sigil to the Outlands and back again, the heroes must piece together a puzzle that could shake the Cage to its foundations. A dark secret of the multiverse wails to be discovered in the lunatic asylum called Harbinger House, and only the player characters can shape its power-for good or ill. TSR 2614

At Restwell Keep, you've heard that fortune and glory await those bold enough to brave the dangers of the Chaos Scar, a valley carved ages ago by a fallen star. The same tales warn that this Chaos Scar draws wickedness to it. Perhaps you can help stem this tide... and gain treasure along the way. While the location is a different keep, this adventure is an homage to B2 Keep on the Borderlands(https://adventurelookup.com/adventures/b2-keep-on-the-borderlands)

To stop a devastating rampage of giants across the land, the party must venture into the lair of the stone giant thane Arnak to uncover the truth about why he has broken his peace with the neighboring dwarves. In the process, they will have the opportunity to retrieve important symbols of the fight against the giants and uncover a dangerous excavation. The adventure is part of the "Against the Giants" series originally by Gary Gygax, hence the writing credit.

Your PCs are reaching the upper end of the heroic tier. New worlds are opening up to them—they might have already ventured to the Feywild, for example, and made contacts with inhabitants of that magical plane. Now they are ready to take their first steps into the darkness. The Shadowfell awaits... Vandariel, a shadar-kai witch who calls herself the Voice of Pain, is a fanatic devotee of the Raven Queen. She has founded and become the self-proclaimed high priest of a bizarre cult, the Lords of Pain, whose purpose is to bring more fey into the shadow pact with that goddess of death. Although the original shadar-kai entered this pact voluntarily, and the race breeds true, Vandariel is consumed by what she sees as a divine mission to reveal the mystery to all fey—whether they wish it or not. Those who do not come voluntarily to the truth are brought against their will. Dark stalkers move like the night, seeking out and abducting suitable subjects. This Side Trek can serve as an introduction to the dangers of the shadow realm. It works well for PCs who are approaching the paragon tier, since it presents a reasonable challenge for characters of 10th level. It is suitable as a climactic encounter for lowerlevel adventurers, as well. It consists of only two encounters.

A black dragon’s treasure hoard has been located in the Twilight Marsh, and within it are secrets that hold interest to the factions. With the dragon marauding over the countryside, the horde is left unguarded. Now is the time to plunder its lair!

A City on the Brink of War Missing for decades, the Crown of Neverwinter, symbol of the former ruling family, has emerged at last. Yet not all are pleased with the crown's reappearance. Beset by rebels and plaguechanged, Lord Dagult Neverember must hire a group of adventurers to track down the so-called Lost Heir and discover his intentions for the city. The stakes are no less than the lives of the citizens of Neverwinter, for if the heroes fail, Neverwinter seems doomed to descend into civil war.

When Fort Iron was taken from the duergar who inhabited it, much of their subterranean quarters were never fully explored. An ancient oubliette has been discovered and its contents have disturbed the miners. Can the mine and the miners be saved from the dangers of the Oubliette of Fort Iron?

A famous relic hunter seeks adventurers to help her find caches of treasure hidden by the now-defeated followers of the Cult of the Dragon. Her maps and notes may lead the way to great wealth—or a terrible death. And do other parties have designs on the treasure as well?

Recent earthquakes have unearthed a small section of a lost dwarven fortress. The dwarves are long gone, but rumors suggest they might have left treasure or weapons behind. After a journey into the Underdark, the characters find a barred iron door bearing the names of several ancient dwarven clans. Pgs. 90-95