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!

BLACKTIDE COVE THE CULT OF THE FISH-MEN From the Ship's Log of the Sprite: "...I can hear them fish-men. All the time with their chanting and hissing and whatnot. There's some kind of religion going on here, down below. We can't understand what they say, but it's something God-like, sure as spray on the foc'sle." A century ago, during the Spellplague, pirates hid a treasure at a shrine in a remote area of Impiltur's coast. Can the heroes claim it from that which lurks there? Blacktide Cove is a 4-6 hour adventure for 6 characters of 6th to 8th level set on the Sea of Fallen Stars! Set on the coast of Impiltur along the Easting Reach, Blacktide Cove can be placed anywhere there's a stretch of lonely coastline and the possibility of pirates. Blacktide Cove is 32 pages of adventure for you and your table! Includes a handy index, cartography by Dyson Logos, new magic items, and full-color player handouts - including exclusive art from Patrick E Pullen! Includes print-friendly version!

Sarkt is an illithid sorcerer. It was cast out of its community for its heretical studies (Sarkt was in fact, lucky to escape alive). It didn't take the cunning creature long to pick up a few thralls and find a new place to live, safe from the murderous intentions of its companions. Sarkt dwells in the subterranean ruins of an ancient shrine to Blibdoolpoolp, the crustacean-headed deity of the kuo-toas. This shrine lies on the fringe of a region controlled by kuo-toas, but since Sarkt's arrival, the fishmen avoid the area. A few unfortunate kuo-toas now serve Sarkt as thralls and maintain the illusion that the shrine serves Blibdoolpoolp.

Part 3 of the Shackled City Adventure Path "Wherein a tribe of the Sea Mother's children suffer for sparing the life of a mad prisoner they probably should have eaten." Synopsis: The adventure begins with an Umber Hulk attack in the middle of the city. The fame gained by assisting during the attack allows them to gain the notice of a representative of Davked Splintershield. The group is asked to rescue Zenith Splintershield from a Kuo-Toan temple in the Underdark. But to find it, they have to visit Crazy Jared to locate an entrance to it. Upon journeying to Crazy Jared's, they fight Hookface's offspring. After more travelling, they are able to descend into the Underdark. Once they find the Kuo-Toan temple, they must fight through many hard challenges, only to realize that Zenith is not a prisoner, but instead is a prophet. Zenith does not go willingly, and so must be captured. Pgs. 28-61

Zhentish soldiers, Maerimydran drow, and Sharran cultists have forged a dark alliance to subjugate the peaceful land of Shadowdale. Elminster's tower lies in ruins, Lord Amcathra governs at the sufferance of the dale's conquerors, and the very Weave of magic in this embattled land seems to fray with each passing day. The Zhentish yoke lies heavy over Shadowdale—but the Dalesfolk are ready to fight for their freedom, if only they can find true heroes to lead the way!

Nightmares that kill, a mysterious thief that only steals knick-knacks, tales of a huge beast terrorising fisherfolk, an inn with disappearing guests, discoveries of hidden magic portals and rumours of an assassin at large: None of these things are enough to stop the ever-flowing tide of traders and travellers crossing the Bridge of Fallen Men, but its protectors - Cormyr's Purple Dragons - are short on time, and courage... ...will adventurers answer the call?

Called by the Elder Elemental Eye to serve, four corrupt prophets have risen from the depths of anonymity to claim mighty weapons with direct links to the power of the elemental princes. Each of these prophets has assembled a cadre of cultists and creatures to serve them in the construction of four elemental temples of lethal design. It is up to adventurers from heroic factions such as the Emerald Enclave and the Order of the Gauntlet to discover where the true power of each prophet lay, and dismantle it before it comes boiling up to obliterate the Realms.

A recent earthquake has brought forth ancient evil from beneath the waves, to terrorize a sleepy coastal town. People are disappearing. The heroes will sail to an ancient, steam-powered temple in the ocean. They'll encounter mad fishmen, deadly traps, and ancient horrors that slumbered until now.

An escaped duergar slave stumbles into the village of Elventree. With her she brings a malady that grips the small settlement in a bout of madness that seems unshakable. Can you find the source of the madness and save yourself and the village’s inhabitants? A four-hour adventure for 5th-10th level characters.

Ranked in 2004 as the single greatest adventure of all time by Dungeon magazine, this is a compilation of three series of modules: the G series "G1-2-3 Against the Giants" (G1 Steading of the Hill Giant Chief, G2 Glacial Rift of the Frost Giant Jarl, G3 Hall of the Fire Giant King), the D series (D1 Descent into the Depths of the Earth, D2 Shrine of the Kuo-Toa, D3 Vault of the Drow), and Q1 Queen of the Demonweb Pits. The characters begin by attempting to stop giant raids that have become prolific. They find out that the giant alliance is caused by the drow. They then descend into the Underdark in order to find the drow and stop their sinister plan. TSR 9179

As adventurers, you may think you have seen everything: certainly your skills have brought you through unimaginable dangers. But now you suddenly find yourself in a place unlike any through which you have traveled: astounding, dangerous, and even amusing things confront you as you journey, both indoors and outdoors, through unique and wondrous realm of Dungeonland. This adventure was first conceived by E. Gary Gygax as part of the Greyhawk Castle dungeon complex and has been the source of challenge and fun for many skilled players of the Advanced Dungeons & Dragons game. It is finally available to all players and can be added to your existing campaign with ease. "Dungeonland" is also designed so that it may be used along with its companion scenario, EX2: "The Land Beyond the Magic Mirror." Still, "Dungeonland" may easily be played on its own, and should offer hours of excitement in its strange landscape! TSR #9072

Restore an Abandoned Temple Enter the catacombs near the desecrated Temple of Muir, Goddess of Paladins, and search for the lost tomb of Abysthor. Will your party be able to cleanse the evil that now inhabits these once-sacred halls, and recover the Stone of Tircople? Can your characters survive the traps of an undead sorcerer? Will your players discover the chamber of Living Rock and the secret power it holds? Adventure awaits! Gold and Glory! A fantasy adventure published for the D20 system, The Tomb of Abysthor is the first module in Necromancer Games Dungeon series and can be played as a stand-alone story or in conjunction with The Crucible of Freya and the forthcoming city supplement Bards Gate. What secrets lie hidden in the tomb of Abysthor?

This book goes over the various rules around the faction of the Order of the Gauntlet in Phandalin and the Forgotten Realms, making it easy for any new or veteran DMs to integrate it more into the core stories being told, and making the faction feel more useful for the players that choose to join. In the adventure, the characters are tasked with exploring the depths of the Old Owl Well.

The Fate of Faerûn Lies in Shadowy Darkness! Daggerdale is reeling from a sudden series of murderous drow raids. As a grave threat to the entire surface world develops in the war-torn dark elf city of Maerimydra, intrepid heroes must discover its source and destroy it, if they can.

When the water source of the city-state of Guerino is poisoned and its citizens enchanted, a group of adventurers must follow the treacherous path deep into Mistfall Mountain and restore balance to the kingdom. Pgs. 91-97

The recent discovery of an entrance to the Underdark has set local leaders on edge. In a display of initiative, the First Lord of Hillsfar has ordered the construction of defensive structures surrounding what locals have begun to call "The Waydown." You have been charged with escorting an emissary back to his home in the Underdark without alerting the Red Plumes.

Into Wonderland is a book detailing an adventure in the Feywild, a setting for Dungeons and Dragons 5th Edition. This book provides player options, encounters, variant rules, and a campaign of expeditions into the unknown centred around the city of Endercoast that has been spirited away from the Material Plane. To survive, you'll need to balance the needs of the displaced city with the mercurial whims of four powerful archfey. What's Included? - Endercoast, a city plucked from its roots and replanted in the Feywild - Quirks of the Feywild, including four powerful archfey, a guide for creating new archfey, rules for travel using emotional truth instead of maps, chaotic seasonal and magical effects, pranks, consequences for getting lost, and 14 weird stops along the way - New races - New subclasses - New backgrounds - New feats - New spells - Fantastical questlines taking a party through the courts of the archfey and on magical journeys inspired by the fairy tales of the Brothers Grimm - A whole heap of chaotic encounters with strange fey creatures - Dozens of new monsters, including 8 ancient beasts, 3 dangerous plants, 4 extremely powerful archfey, a bunch of NPCs based on the new subclasses of the book, creepy new fey like the darkwood stalker and the time vulture, a powerful hag, and more

"Something Fishy" - a Celtic-world campaign. "Iasc" is set in a small Celtic kingdom that can be fit into any medieval/fantasy campaign. The PCs need not be Celts. The likelihood of combat is very high, and the party is recommended to host several warriors.

As a member of a bold party of adventurers, you and your associates have trekked far into what seems to be a whole underworld of subterranean tunnels -- arteries connecting endless caves and caverns which honeycomb the foundations of the lands beneath the sun. Your expedition has dogged the heels of the Dark Elves who caused great woe and then fled underground. This module can be played alone, as the conclusion to module D1 & D2: "Descent into the Depths of the Earth," or as the third module in a series that forms a special extended adventure (G1-G3: "Against the Giants"; D1-D2: "Descent into the Depths"; and Q1: "Queen of the Demonweb Pits"). TSR 9021

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