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!

There is no particular overarching story here, just a prospect gate keep dungeon you can drop into your own sandbox and run as you see fit. This adventure is formatted to both 1E & 5E gaming rules.

The waters of a sunless sea meet a pebble-strewn shore, beyond which opens a wide Underdark vista shimmering with pale cave-light. Titanic columns as big as castles march miles into the misted distance. The wide, steeply sloping base of the nearest colossal column is carved with streets, walls, and elaborate structures, many with gaping, empty windows. A few glimmer with faint illumination. Are you brave enough to explore the spire-city and face the terrors that lurk within? Part 2 of the Barrow of the Forgotten King series. Followed by Fortress of the Yuan-ti.

A storm of unparalleled fury has been ravaging the peaks of the Earthspur Mountains for a tenday, and the Monastery of the Yellow Rose sits in its eye for now. Some monks have fled the monastery to the safety of Mulmaster and beseech you to convince their more obstinate brothers to retreat to the city before the eye of the storm shifts, and the monestary is in terrible danger. Can you brave the elements and convince the monks to escape?

It all begins with a simple request (doesn’t it always?) from an old farmer. The request – protect his cattle herd from vicious wolves. Simple enough for the brave adventurers, right? But it doesn’t stay that way. Not at all. Soon, the adventuring party will find themselves in the thick of it as they solve puzzles, avoid traps, fight for their lives, and endure witty taunting. And in the end, they discover an artifact that may, or may not, be useful to them. This adventure includes a cursed shield, a new undead creature, and a new artifact. Total party experience earned is approximately 14,500.

Many Cannith creation forges were lost on the Day of Mourning, but a rogue artificer has uncovered one of those that pursued some of the most experimental and dangerous research during the Last War. But while seeking the forbidden knowledge in the forge, this explorer awakened a dark power that was more than she could handle, and that now threatens the region. Pgs. 4-34

A trap that perhaps works too well. No matter how much loot you take, you never took anything at all. Confused? Wait until you try this dungeon. The players are hired to investigate and clear a tomb of a time wizard. This tomb is heavily guarded both by creatures and traps, and some sages are concerned that the defenses are lasting longer than they were supposed to. Unknown to the sages, the wizard, Sur-in Am, bound a time elemental to guard the treasures of the tomb. This guardian's duty is to frustrate robbers by returning stolen items to their original place and also reset traps in the tomb. Pgs. 26-36

The Haunt Unlock the secrets and drive back the evil from Montarthas Manor In ages past, an ancient town was lost and destroyed to a seige of orcs. Only one building survived and to this day, the manor is the only still standing building to be seen for miles around. Some say it is haunted, a few whisper of great treasures within, whilst others whisper that it is the manor itself that lives! No one knows for sure, only that a great evil haunts its halls. Do you dare enter Montarthas Manor? Published by P.B. Publishing

A series of small earthquakes have brought a sense of disquiet to the town of Daern Kelton and Roslof Keep. Against these strange earthly portents, the members of the Ivory Scimitar have claimed their place as a true Mithel Company, but even greater danger now awaits them in the second level of the Dungeon of the Black Fey Mithelvarn. What lost secrets will be revealed as they journey below? What new threats and adventures can be had in Daern Kelton? The town opens its doors to the brave new heroes of the Company of the Ivory Scimitar. Here continues the Roslof Keep Campaign in the pages of ROS2, The Tremors in the Machine. This adventure is formatted to both 1E & 5E gaming rules. Also available in PDF.

The fate of a city lies within a dungeon whose doors are sealed with - cards It's up to you to bring it tumbling down. “House of Cards” combined dungeon exploration with the Deck of Many Things to create an adventure experience unlike anything seen before. The deck is both a treasure and a trap, guarding a tomb complex that’s being used by the Night Masks thieves’ guild as a lair. If the PCs want the deck for themselves, they must first gather all the cards, which is easier said than done. - Christopher Perkins Pgs. 38-64

Riddled with veins of precious ore and gem, the Earthspur Mountains to the west have long been a valuable resource for anyone able to mine them. One such mine has gone silent and the only thing more concerning than its long overdue shipment is the fate of the members of the Soldiery sent to discover what has happened to the mine’s workers. Though the mine lay in a region of the Mountains once claimed by a clan of reclusive dwarves, the Ludwakazar clan wouldn’t be so bold as to violate their long-standing peace with Mulmaster. Or would they?

A hundred miles off the Chelish coast lies the remote island of Deepmar, where the House of Thrune sends prisoners to work in crystal mines, wresting valuable spell components from the depths of the earth. A month ago, all contact with the penal colony ceased, and now someone must discover what mysterious fate has befallen the prisoners and guards of this isolated mining operation.

Two feuding kobold tribes have been left alone in their dragon queen's lair. Without supervision, surrounded by the wealth of nations and piles of magical artifacts. How long before things devolve into utter chaos? Set inside an enormous dragon's lair, the adventure allows players to take control of the best and brightest among the kobold tribe known as the Redscales. Their entire lives they have been the Dragon Queen's minions and her lair's caretakers. But the Dragon Queen has been gone for some time now and an ancient feud with another kobold tribe (the Bluescales) is about to be a rekindled. And the trap- and treasure-filled lair is to become their battleground. The gameplay is a mix of roleplaying, involving some tough moral choices (well, tough for kobolds), solving puzzles and wacky combat with kobolds wielding powerful ancient artifacts. There is an abundance of magic items, specially chosen for their potential to lead to hilarious situations.

Once a powerful proponent of Law, the Archmage Tazimack the Red was eventually driven mad by a fear of mortality. As he slipped into insanity his retirement home began to reflect the chaotic bent of his mind. Long after Tazimack’s unnaturally animated body has disintegrated, his manor house remains as a shadow cast by a twisted intellect. Can the characters bring order to this chaos?

The land lies under a curse. Fruit drops to the ground, its pulp black and rotten. Leaves curl and wither on the branches. Animals flee the parched vale, or starve. Long ago, the Downs prospered under the care of Druids, but the priests of nature have retreated deep into the woods and rarely show themselves. One old man claims that the Druids have the power to save the valley, if only someone could find their Oracle to seek help. Will you reach the Forest Oracle of the Druids in time? And if you do, can they really lift the curse? Or does the answer lie elsewhere? Only the most daring and cunning adventurers will save the Downs. N2: "The Forest Oracle" (1984), by Carl Smith, is the second AD&D adventure in the novice (N-) series. Unlike its predecessor, it is not intended for 1st-level adventurers, but instead for 2nd level and up. This conversion guide allows DMs to run the original module with 5th Edition rules and provides a reference sheet for encounters. Also contains suggestions for placement in the Forgotten Realms. To use this conversion guide you will need a copy of The Forest Oracle, originally available in hard-copy and now for sale in Digital format on the DMs Guild. Visit Classicmodulestoday.com to find out how you can create your own classic module conversions and sell them on the DMs Guild.

Designed for a party of five characters of at least 9th level, this adventure will challenge players seeking a powerful magic item of the GM’s choosing. A sphere of annihilation has been provided and is woven into several elements of the adventure, but any appropriately powerful item can be substituted if something else suits your campaign better. Though the adventure is designed to test every type of character class, a rogue who can deal with traps is essential, as is a wizard or sorcerer of at least 9th level. Larger groups will have an easier time; parties of four or fewer characters will be in for a very bad time unless you mitigate some of the tower’s more lethal traps and encounters. This adventure culminates in an encounter with devils and a sphere of annihilation. The sphere of annihilation is hidden deep within the tower-and-dungeon complex of Crane the Sorcerer. Originally set atop a high mountain in a secluded and wild part of the world, the tower and dungeon can be relocated to meet the situation in your campign. Crane, an introvert, stayed as far away from civilization as possible, as is detailed below. The tower above the dungeon doesn’t present many difficulties for a group of powerful characters or alert players. It might lull PCs into a false sense of security before they enter the areas where they’ll really be put to the test.

Slain in disgrace, reborn in fury, armed to the teeth: Flame returns! Flame is back - and is he mad! The sequel to "Into the Fire" from Dungeon 1. Pgs. 42-63

An omnious encounter with a fortuneteller sends a party of adventurers on a 200-mile journey across the Lands of Intrigue. While traveling throught the towns and terrain (detailed here for the first time) that lie in their path, they hear rumors and obtain clues about their mission. Their ultimate destination is Castle Spulzeer, a once proud stronghold that has become a den of terror. When the heroes enter the haunted keep, they meet a terrifying trio of residents: a madman armed with stolen magical power, a liche whose secret laboratory houses untold horrors and treasure, and a furious ghost bent on revenge. These three ensnare the party in their fight over an ancient weapon. Each will stop at nothing to keep it from the other two. The heroes must choose with whom they will ally - and the wrong choice could lead to their doom. Castle Spulzeer is an adventure complete in itself. However, as a crossover story, it offers every Dungeon Master a choice between two endings. The first leaves the party in the Realms. The second transports the characters to the Demiplane of Dread, where the plot continues in the Ravenloft adventure The Forgotten Terror. For 4 to 6 Characters of Levels 8-12 This conversion guide allows DMs to run the original module with 5th Edition rules. To use this conversion guide you will need a copy of Castle Spulzeer, originally available in hard-copy and now for sale in digital format on the DMs Guild. Visit Classicmodulestoday.com for instructions on creating your own classic module conversions and selling them on the DMs Guild. Castle Spulzeer was originally scheduled for publication by TSR in June 1997. Then, near-bankruptcy caused a total failure of TSR's schedule, resulting in no books being published from February through the very end of July. Some books would be delayed for over a year, and others would disappear altogether, but Castle Spulzeer was relatively lucky: it was just delayed four months, until October 1997. The reason may well have been its theming, and its crossover with the Ravenloft line, which made Castle Spulzeer a great Halloween release. Castle Spulzeer has an even more far-reaching connection: its ending can lead players to the demiplane of Ravenloft and The Forgotten Terror adventure. This was probably intended as a bit of advertising for Domains of Dread (1997), the third edition of Ravenloft which was released in August 1997. In other words: in their last days, TSR was working very hard to cross-market their products, but they didn't live long enough to see the success of the Spulzeer-Intrigue-Dread connection.

The PCs are looking to gain entry to the Glantri School of Magic, after the initial admission tests they are drawn into a commotion where one of the other students is being attacked by an evil sorceress. He tries to flee but but is killed, and the PCs are framed for the murder. The authorities are called and bribed to just kill the PCs, they flee and are chased and taunted by the evil sorceress. Eventually, during one of her attacks, she opens a weak spot in the ground and the heroes are dropped into the warrens under the school. They must navigate the warrens, which are shrouded in magical darkness, defend against further attacks, and find escape where they can prove their innocence.

For the past 5 years this elven village has been plagued by undead creatures of the nearby swampland. The undead are consisted of unlucky elf villagers or travelers who were foolish enough to walk through the swampland. It is unknown how the undead appeared in the swampland in the first place, but it is rumored that a demonic entity has found shelter in a cave inside the dark forest next to the swampland and it is being worshipped by necromancer cultists. This adventure is for parties no larger than 5 characters and no higher than level 5.