This material was originally published as two separate adventures, D1: "Descent into the Depths of the Earth" and D2: "Shrine of the Kuo-Toa." Contained herein are referee notes, background information, maps, and exploration keys intended for use with the Advanced Dungeons & Dragons rules. The adventure can be used alone or as part of an extended adventure that begins with G1-3: "Against the Giants" and continues with D3: "The Vault of the Drow" and Q1: "Queen of the Demonweb Pits." TSR 9059

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!

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.

Mr. P has a job for you. You must investigate three robberies that took place in Waterdeep in the past few days, and connect them to whoever is responsible. All clues lead you to a certain mansion, but it is certain that the raid will not be easy, as they are always watching, always one step ahead... Who's watching you ask? What do you mean? No one is watching.

Elanil Elassidil, an elf bard of no small legacy, has put out a call for trustworthy agents. It is time, it seems, for a quietly hidden piece of elven history to become known to the world. Meira Faerenduil, lost knight of Myth Drannor, has been dis-covered, and must be brought back to civilization. A four-hour adventure for 5th-10th level characters. **NOTE** As of August 30th this adventure no longer grants an Oathbow in Adventurers League play. It has been changed to award a +2 Longbow per the Adventurers League Content Catalog.

The adventure takes players from a town devastated by an unexpected flood, through a drowned land where nature is turned upside down and desperate families cling to the roofs of their ruined homes, hiding from the monstrous products of a disordered world, through the strange tomb of an ancient race, to a profundal zone, hidden for millennia and now exposed, and finally to the Observatory itself, an eerie abandoned treasure palace, where they will encounter a pale and unexpected terror which will seek to claim their lives. The adventure is suitable for a lucky mid-range party, a stupid high-level party or an exceedingly clever low level party. It is difficult, with a meaningful possibility of character death. Should you find them, and defeat their guardians, the treasures of an ancient culture will be yours. At the final point of the Observatory is a glimpse of another world. Published by False Machine Publishing

Written by the setting’s creator, incomparable RPG author Monte Cook, Ptolus: Queen of Lies is an action-packed fantasy adventure painstakingly re-designed for Ptolus: Monte Cook’s City by the Spire. Involving numerous challenging scenarios for characters of 11th level, Queen of Lies is filled with dozens of dark elf personalities, cunningly showcasing their alien culture—a world of merciless betrayal and sinister lusts. Deep below the surface, in the sunless lands of the Netherdeep, creatures of darkness build weapons and amass armies, dreaming of invasion. An attack on a peaceful elven shrine in Emerald Hill sends the heroes on a quest to retrieve stolen artifacts and kidnapped friends. All signs point to the actions of the dark elves of Ul-Drakkan, far below the city of Ptolus. However, even within that ancient fortress, there exists a deeper darkness.... Underground enemies lurk beyond every twisting passage, and strange creatures abound. The foul culture of the dark elves is both decadent and cruel, and the heroes may discover that they’ve stumbled into a web of deceit and treachery spun by the self-styled queen of the dark elves. Can the player characters complete their mission without being discovered, or will they find out, perhaps too late, that their actions been orchestrated all along by the wicked Queen of Lies? Published by Fiery Dragon Productions

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

Just as the trail led from the STEADING OF THE HILL GIANT CHIEF to the frozen wastes where was found the GLACIAL RIFT OF THE FROST GIANT JARL, so the adventure in the latter place has let (or transported) the intrepid party to what they hope will be their last challenge. They are about to venture into the hot and smoking barrens which are in effect Muspelheim, the home of fire giants. This module contains background information, referee's notes, three 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 last of a three-part expedition adventure which also employs DUNGEON MODULE G1 (STEADING OF THE HILL GIANT CHIEF and DUNGEON MODULE G2 (GLACIAL RIFT OF THE FROST GIANT JARL). TSR 9018

From the magazine: "The monster you're sent out after is so dangerous that even mind flayers fear it. And the illithids want your help!" Earthquakes hit the area around Needlespire mountain, affecting both dwarven and deep gnome villages, and the local mining industry. Deep gnome expeditions discover an illithid outpost! This adventure includes roleplaying encounters with both deep gnomes and illithid in their quest for the true cause of the earthquakes. The creature causing the earthquakes is a draknor which has sent its huge tentacles into the earth seeking magma to fuel its growth. Pgs. 38-60

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?

Into the void. It all started with two wizards feuding now a sphere of annihilation and a daemon princess threatens the whole town. It is up to the party to stop things before the city is destroyed. Pgs. 24-47

Death Is in the Cards The remnants of the Ebon Fold are cutting a deadly path through the Falkovian countryside, draining travelers of their life force and leaving withered corpses in their wake. Hot on their trail you come across the sole survivor of one of these deadly attacks, a young vistani man with an extraordinary skill for fortune-telling. His tarokka deck helps close the gap between you and the assassins. Together you follow the trail through Darkon, the dark domain of the lich lord Azalin, to the city of Nartok. With an Unholy Alliance... Something very strange is happening in Nortok. The killers enter the Temple of the Eternal Order and don't come out. It seems that the state of religion of Darkon is giving succor to these assassins. To make matters more confusing, the Kargat, the domain's secret police, has put aside its feud with the Eternal Order and has a large contingent staying at the temple as well. These three organizations working together bodes ill for the residents of Nartok. ... And Schemes Within Infernal Schemes Great amounts of life energy are being collected for some foul purpose, although no one seems to know what exactly it is. The tarokka cards provide only mysterious glimpses of the future - a future in which a powerful evil sweeps the land and Death walks the world. Can you discover the truth of what is happening in the temple in time to avert the disaster predicted by the cards? Death Ascendant is a full-length adventure that can be run as a stand-alone scenario or as the second part in the Grim Harvest series. It contains a 64-page adventure booklet plus a full-color poster map detailing the Temple of the Eternal Order. TSR 9526

In Prisoners of the Drow, a band of adventurers storm a drow outpost, confront the drow mage in charge of it, and rescue prisoners held within. The heroes must bypass traps and devious defenses to reach their goal and accomplish their mission. The adventure is designed for a party of five adventurers between levels nine and twelve. 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. 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. This adventure is designed as the first in a two-part series. The second adventure Into the City of Spiders takes the adventurers into a drow compound far from the surface. https://www.drivethrurpg.com/product/247674/Into-the-City-of-Spiders

Terrible Trouble at Tragidore is a 16 page tournament module for 5th to 8th level characters. Notorious for being one of the worst modules of all time, with implausible background and encounters and a railroad of a plot.

While the PCs continue the quest for the missing pages of the Codex of Gamber Dauch they find the lands of Count Elam. The ruler has recently been informed of an agricultural problem with a herd of Anhkheg tearing up the lush farmland. Further investigation will uncover darker secrets in the area, and those involving Drow and Derro!

They sure don't make lawful allies like they used to. A question of morality versus ethics - made lethal. Pgs. 17-34

When a series of grisly murders and raids on farms and fishing boats come to light, accompanied by a strange fog, the people of Elmwood need heroes to investigate and stop the attacks. There is hardly anyone in the Moonsea who’s life hasn’t been touched by one of the tragedies over the past years, and these attacks may have deeper causes than anyone knows. Part of the Elmwood Adventures Series

If absolute power corrupts absolutely, Matron Maelora best beware; her plans for total domination of the Underworld are already close to satisfactory completion, while attacks on the Upperworld have become increasingly successful. The other power-hungry drow families of Holoth may despise her but they know a true leader when they see one, and House Gullion has been revealed as the family to lead them all on the path to glory. With the entire Underworld in chaos and the Spider Goddess regularly communing with her chosen Matron, far greater dreams than mere regional conquest are within the grasp of the drow, as Maelora prepares her grand dark elf army for victory! With other mystical allies standing firm with the Matron, other Underworld races beneath her heel or cowering behind fortified walls, and every drow ready to play their part when she gives the word, what could possibly stop her from achieving her final triumph and fulfilling her destiny? But even the greatest of plans has a flaw if you look hard enough, and a party of stout heart and strong resolve can make a difference. At first, such a party may well believe it is on a smaller adventure, perhaps to win a few baubles or some small acclaim by rescuing a few kidnapped villagers. Soon, however, those adventurers will realise that much more is at stake, and that they are the ones who will need to make moves against the evil Matron Maelora and her increasing dominance if both the entire Underworld and Upperworld are to be saved. But how will they go about it? Can they ensure their own success when an entire city is standing against them? Only they have the chance to halt the Rise of the Drow! Published by AAW Games.

Deep in the jungles of Xen'drik, a relic of great power has lain hidden for thousands of years. Now, determined adventurers race against time and the nefarious agents of the Order of the Emerald Claw to locate the relic, overcome unimagined obstacles, and unlock its ancient secret. The Order's hunt for the parts of an ancient creation pattern nears its conclusion, but other groups also seek this powerful item. Once all of the pieces come within close proximity of each other, the ancient intelligence awakens. Suddenly all parties have a new and powerful enemy to contend with...