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!

Sometimes you can just be in the wrong place at the wrong time... Sheltering from a savage storm, a group of fledgling adventurers find themselves trapped by circumstances and powerful forces from a bygone age. Escaping from dark and dismal caverns, the heroes must brave a nightmarish trek through haunted and hostile terrain, pursued by an mysterious assailant to the very walls of Anduria – home of the greatest civilisation in the world. On the edge between madness and salvation, they must broker a deal with shadowy cults and political powers to determine not only their own fate, but potentially that of the Eternal City itself.

Despite what some may think, those in Zhentil Keep haven't forgotten about their orc troops in Phent. In public discussion in Zhentil Keep, the leaders of the Zhentilar, the military branch of Zhentil Keep, have confidently asserted that the orcs in Thesk are completely loyal to Zhentil Keep. They maintain that the orcs are just biding their time and building up trust among the citizens, until the appointed time when the word is given. In private, these same leaders are gravely concerned. The leaders didn't get to positions of command by being idiots, and they know that the orcs are treated well and accepted in Thesk, which is a rarity for them with the humans and humanoids of Faerûn in general. The leaders know that many of the orcs would be reluctant to destroy the source of this acceptance. But what if the orcs' chief god, Gruumsh, told them to? The Zhentilar turned to the Black Network and presented the problem. The Zhents knew what to do. The Zhents have dispatched a powerful cleric, a master of persuasion and deception, to pose as an orc prophet of Gruumsh and whip the orcs into a destructive frenzy. In addition, the Zhentilar have staged raids against human caravans by what look like orc warriors so that they can start antiorc sentiment among the population of Thesk. Twin Oaks is a tiny, sleepy little thorp located just within the sheltering eaves of a great forest. Home to an extended family clan of farmers and woodcutters, the community was founded within living memory and since its creation the inhabitants have known only peace and prosperity. But just as the gentle breezes of late summer can transform rapidly into the deadly storms of autumn, dark times have come suddenly to Twin Oaks, in the person of Deskryn, a vampire who finds himself on the run from deadly enemies. Just two nights ago, as the good folk of Twin Oaks prepared for the annual harvest, Deskryn’s castle home was invaded by an intrepid band of adventurers led by a noble paladin. Although the party did not achieve its goal of slaying the vampire himself, they managed to drive him from his lair and force him to flee into the night with only the barest fraction of his former resources in tow. Unfortunately for the good folk of Twin Oaks, theirs was the community onto which the 2 vampire stumbled first, and it is here that the fiends have taken refuge. The little settlement offers the displaced vampire all that he needs: shelter from the hateful light of the sun, a selection of new servants, and a supply of fresh mortal blood. Even in his current condition, Deskryn alone is more than a match for the nhabitants of the thorp; but his best hope of survival lies not in conquest, but in secrecy. He plans to hide in Twin Oaks until he believes it safe to leave; then, he can begin plotting his revenge on the hateful paladin and her compatriots who brought him to this lowly state. As for the citizens of the thorp, they are all but helpless in the face of this powerful enemy. The vampire has already slaked his unholy thirst on one of their number, and his minions have taken hostages to ensure that the inhabitants do as they are told. All the folk of Twin Oaks hope that Deskryn will take what he wants and then leave them in peace, but few of them believe that such hopes are realistic. Until Deskryn has satisfied himself that the coast is clear, Twin Oaks—and its people—belong to him.

The mine has been known as Tessount’s Folly for years, due to it producing nothing of value. Now Valmour, the youngest son of the mine’s late owner, has inherited the mine...and found something he should have left buried. Pgs. 56-81

"Mysterious Ways" is a D&D adventure set in the Holy Land (Israel and Jordan) during the time of the Crusades (1114 A.D.) in an alternate-Earth setting. This is a world where the portals to otherworldly realms, particularly the Lower Planes, are closed--sealed shut by the power of the True Cross, a holy relic sought by evil thieves who would see the gates to the Lower Planes flung open. Magic exists in this alternate world, but it is less prevalent than in other D&D campaign settings. This paucity of magic serves the core of the adventure's storyline and should be preserved, if possible. This adventure is designed for a party of four 7th-level player characters (PCs). It is recommended that the party include at least one lawful cleric or paladin. Consult the "Adapting the Adventure" sidebar for ways to incorporate the adventure into generic D&D campaigns and modify it for higher or lower levels of play.

Sacred relics of the monastery, the eyes of the dragon, have been stolen from their rightful place in the eyes of the Ascendant Dragon statue. The elders have chosen one from among their ranks to go and retrieve these two fist-sized emeralds and bring them home.

For better or for worse. It's up to you to make sure this is the happiest day of their lives - not the most embarrassing! A wedding and a jealous lover what could go wrong. A small and light hearted adventure perfect for kicking off a campaign in a city. Pgs. 50-57

*THIS IS A D&D NEXT/5E PLAYTEST ADVENTURE* Imani, a Turmishan wizard and former adventurer, seeks the aid of heroes to infiltrate Dretchroyaster’s lair and recover the Diamond Staff of Chomylla—the key to powerful magic and wisdom locked away for thousands of years. In addition to his own sagely interest in the lore of lost Uvaeren, Imani recognizes the dangers of such powerful magic falling into evil hands. The dracolich has secured the staff in his lair’s cen- tral chamber, using ancient wards of protection that can be bypassed only by four artifact-idols once belong- ing to a cult of Bhaal. Each group of adventurers enters the dungeon through a different section of the dun- geon—a forgotten temple of Bhaal, a vast underground lake, a troglodyte village, or Dretchroyaster’s vaults. Dretchroyaster’s lair is no simple set of caverns and ancient ruins. It sits atop a source of great power and energy, which the dracolich and his Cult of the Dragon allies hope to use to unlock the secrets of the staff. Only by undertaking a unified assault against Dretchroyas- ter’s lair can the adventurers hope to recover the Diamond Staff and survive the dracolich’s fury. The adventurers must make their way through the lair and recover the Bhaalite idols that will help unlock the Diamond Staff, all the while dealing with the lair’s creatures and avoiding the dracolich as he pur- sues intruders. Entering the Chamber of the Diamond Staff, the heroes must overcome its magical wards and claim the staff before being slain by the dracolich and his servants.

"Wherein the local clergy makes the terrible mistake of not hiring enough assassins for the job." Synopsis: The heroes have just returned from the abyss (Occipitus) and reestablish themselves in Cauldron, when they are assaulted by a group of professional assassins. After they repel the attack, they trace back the lead to the temple of Wee Jas, where they find plenty of opposition from the second in command, Ike Iverson. After dispatching of the cleric and securing of a (spare) soul cage, the group finds evidence of a place important to the cagewrights' cause - an ancient underground complex named Karran Kurral. Mounting an expedition to that place, they find more evidence towards the horrific destiny on schedule for Cauldron. However, they gain access to the Soul Pillars after defeating a dracolich, that they can use to gather plenty of intelligence on the cagewrights' plans. Pgs. 12-51

A cleric has tirelessly tended to the medical needs of his fellow villagers for decades. There have been occasional cases of madness among his charges over the years, enough to cause rumors, but now there is an outbreak, including people known for years to be quite sane. Can you discover the source of these terrible troubles and return the village to normal life?

The Assassin's Knot is a sequel to The Secret of Bone Hill, picking up on themes from that module and shifts them to a new locale. The player characters must solve the mystery of who killed the Baron of Restenford, with evidence pointing to somebody from the town of Garrotten. The scenario describes the town and its castle. The Assassin's Knot module is different from most of its contemporaries in that it contained no dungeon or dungeon-like area. The longer the players take to find the murderer, the more unfortunate events occur in the village. The village, Garrotten, is reputed to be the place to go to have someone killed. The entire village shuts down when the Baron of Restenford is found dead, mutilated beyond the possibility of magical restoration. Three small clues are all the player characters have to unravel the mystery. TSR 9057

His name is Conan, and no man can stand before him in battle." "Conan the Conqueror" by Robert E. Howard In an age long ago, there existed a hero - Conan. With fiery will, he slashed his name across the ancient lands of Hyboria. It was a time when bravery, trickery, and magic decided men's fates, and a steel sword could make the difference between life and death. For the daring, strong, and clever, there were fortunes to find and lands to rule. Travel back to this with Conan and his companions, Juma, Valeria, and Nestor. Travel back to defeat the dark horrors of his land! TSR 9123

A plague has struck Waen Fawr, leaving hundreds dead, the city lawless and in crisis. The plague seems to drive those affected to violent, manic behaviour and the city militia have their hands full. Smoke shrouds the city as buildings burn, bandits and looters roam the streets amid the chaos. This adventure comes with tiles to create a city map as the players explore. Tables of rumours and random encounters are provided, as well as detailed location-based encounters. Pgs. 28-48

Men always seek the blood of monsters. Some spill it to avenge their massacred families. Others swim through an ocean of gore to find treasures worth the envy of kings. A few know blood can be a priceless treasure in and of itself. Alchemy has long used the lifeblood of monstrosities as arcane fuel, and of all the legendary beasts, the blood of the gorgon holds the most secrets. Few know the blood's darkest lore, its ability to draw out the monster within every soul. Those who drink gorgon's blood are forever changed, and the darkest horrors of their mind unleashed. The heroes hunt a deadly murderer who stalks the streets of the Free City of Zobeck after nightfall, and cross blades with a guild of monsters who rule the city from below. Lucky heroes might risk no more than their lives. Unlucky heroes must wager their souls in a game where monsters and men dance close enough to share their blood and their fate.

A Planescape adventure for 4-7 PCs of levels 9-12 (about 60 total levels). While the module begins in the planar city of Sigil, most of the action takes place in Vudra, a layer of the Abyss. The PCs start in Sigil, tasked to find a vanished brother, and the trail leads to Vudra where the layers demonic ruler gathers magical blades for a terrible vengeance plot. Pgs. 32-58

"...the Ultimate Campaign Adventure..." A sinister force, long thought destroyed, stirs from the black hole that spawned it. Like an ebony darkness it prowls the land and safety is but an illusion, for it watches from every shadow and ponders possibilities. What began years ago with the introduction of the players to the quiet village of Hommlet and the amazing lands of Greyhawk, at last is complete. Here is the long awaited campaign adventure featuring the ruins of the Temple of Elemental Evil! Evil broods and grows beneath those blasted stones. This is your chance to drive it back and scatter its forces again. This product includes the village of Hommlet, the filthy shire of Nulb, and reveals the ruins of the Temple of Elemental Evil and the labyrinths that lie beneath, a warren of darkness. And beyond these ruins, even more is revealed. For the first time this product provides a complete campaign adventure which will take beginning characters from 1st all the way to 8th level and possibly beyond! Hours of adventure await you! TSR 9147

A 1st-level dungeon crawl heavy on exploration, factions, and sorcerous wonder for Shadowdark RPG! Go below the dripping ruins of Bittermold Keep to hunt for legendary treasures and face off against three competing factions that want to claim the Hideous Halls: the degenerate Bittermold family, the wild halfling Howlers, and the disgruntled mutant catfish. The characters might even encounter the abominable god-ooze, Mugdulblub! Winner of "The Best" rating from tenfootpole.org! View the adventure walkthrough video here: https://www.youtube.com/watch?v=mVJ-t7qMjPo This adventure is part of Cursed Scroll Zine 1: Diablerie! Inside the zine, you'll find cursed knights channeling demonic power, mist-addled forests where witches and warlocks stalk the trees, and crumbling castles housing ancient, eldritch creatures. Shadowdark RPG is what classic, old-school fantasy gaming would look like after being redesigned with 50 years of innovation. It's the world's greatest roleplaying game in a whole new light! Learn more and download the free rules here: https://www.thearcanelibrary.com/pages/shadowdark

The Thieves Guild Ebonclad has learned of a construct that would make an ideal guardian or soldier. Unfortunately the constructs creator is looking to sell this to The Crown. It is in Ebonclad's best interest to intercept this construct before its abilities can be demonstrated. The party plays the role of a group of saboteurs, required to sabotage or destroy a construct named Marx before it can be demonstrated to The Crown in less than a day’s time. The mission’s primary objective is to locate the construct Marx and destroy or sabotage it. If Marx is destroyed outright, the party will need a patsy to pin the crime on. If possible, the party should steal Eva Dalphane’s schematics for Marx, as well as investigate how the artificer brought the construct into the city undetected.

The outpost of Fort Dolor has experienced an unprecedented stretch of peace in recent times. Then nearly the entire garrison disappears on a supposed routine patrol, and the town— still on the frontier— is left nearly defenseless. Can the adventurers dig to the bottom of the mystery at Fort Dolor before they, too, disappear? Pgs. 82-103

The esteemed Blakros family—famous for their museum in Absalom—receives a large shipment of artifacts from Numeria but fears that the ever-vigilant Technic League will attack to reclaim its "stolen" property. When they request the help of Pathfinders to help guard the collection, the PCs discover that the Technic League is the least of their worries. Content in “The Silver Mount Collection” contains faction missions for the Dark Archive.