In the Yatil Mountains south of Perrenland there is rumored to be a magical hoard of unsurpassed value, a treasure of such fame that scores of adventurers have perished in search of it. Find the perilous Lost Caverns of Tsojanth and you may gain the hidden wealth of the long-dead arch-mage-- if you live. Module S4, this contains a brief wilderness journey to the caverns, but the bulk is underground. The caverns are noted as a previous lair of the Arch-mage Iggwilv- though she is long gone, her Demonomicon remains. This module marks the first appearance of several monsters and items that would later appear in the Monster Manual 2 and Unearthed Arcana. A labyrinth features in the caves. TSR 9061

A deadly encounter for a party of level 7-10s. Brave the crypt in an attempt to save Lord Eldark's son. This challenging dungeon is adaptable and easy to run in any existing campaign. It has some very tough encounters and is available for free on DM guild!

Up the river "Just sit right back, and you'll hear a tale, a tale of a fateful trip..." Pgs. 58-67

The Hell's Vengeance Adventure Path begins with "The Hellfire Compact," an exciting new adventure in which the players take the roles of evil characters in the diabolical empire of Cheliax! A paladin of Iomedae and knight-errant of the Glorious Reclamation comes to the town of Longacre, inspiring the citizens to join the uprising against the Thrice-Damned House of Thrune. First as amoral mercenaries, then as retainers of the wicked archbaron of Longacre, the evil adventurers must move quickly to put down the insurgency and keep the town from falling to the knight's rebellion.

Things are darkest before they go totally black. He wears black, hires orcs, and looks depraved - but don't be fooled. He's far more dangerous than he seems. Thaddigren Dentiata recently arrived in the village of Sisak, and within 3 months had constructed a great tower on the outskirts. The villagers have become more wary of him, since he employs the help of orc henchment (albeit polite ones), and also is suspected of using dark magic. Since then, livestock has begun disappearing from the surrounding pastures, and two drunk men fell upon a terrible fate when they went to investigate the tower secretly. One was killed and the other remains missing. The villagers have confronted Dentiata, but he and his henchmen politely turned aside their questioning. The players arrive just after one of the town elders was taken by orcs from the village after trying in vain to rally the rest of the townspeople. The players will spend some time in the village gathering information and then attack the tower itself, ending in a final battle with the evil wizard. The module provides details on all buildings in the town as well as all NPCs and stores. Pgs. 6-24

Somewhere under a lost and lonely hill of grim and foreboding aspect lies a labyrinthine crypt. It is filled with terrible traps and not a few strange and ferocious monsters to slay the unwary. It is filled with rich treasures both precious and magical, but in addition to the aforementioned guardians, there is said to be a demilich who still wards his final haunt (Be warned that tales told have it that this being possesses powers which make him nearly undefeatable). Accounts relate that it is quite unlikely that any adventurers will ever find the chamber where the demilich Acererak lingers, for the passages and rooms of the Tomb are fraught with terrible traps, poison gases, and magical protections. Furthermore, the demi-lich has so well hidden his lair, that even those who avoid the pitfalls will not be likely to locale their true goal. In the far reaches of the world, under a lost and lonely hill, lies the sinister TOMB OF HORRORS. This Labyrinthine crypt is filled with terrible traps, strange and ferocious monsters, rich and magical treasures, and somewhere within rests the evil Demi-Lich. TSR 9022

"The magic in his flying island sputters and fades. Brave adventurers will enter the wizard’s floating workshop, solve the puzzles and unravel its mysteries before catastrophic failure sends the island crashing down to earth." The sequel to Hideous Daylight (but can be run independently). This adventure focuses heavily on puzzle-solving and exploration 19 keyed locations Written for the Old-School Essentials (OSE) rule system

Pirates and powderkegs. An undersea menace has the merchants of Scalabar up in arms. A strange sea monster is plaguing the trade ships near Scalabar, a coastal city. You have arrived in Scalabar at the behest of Sora Calhaigne. The lady of House Calhaigne needs brave heroes to investigate the loss of her galleon, the Morning Star. She has reason to believe that the sea monster is not what it seems. Includes a list of random city encounters, a keyed map of the port city, Scalabar, as well as a simple overland map of the Scalabar coast, a map of a typical two-story warehouse, a keyed map of the pirate caves, and a keyed map of the ship Thresher. Pgs. 10-27

The Underdark is a subterranean wonderland, a vast and twisted labyrinth where fear reigns. It is the home of horrific monsters that have never seen the light of day. It is here that the dark elf Gromph Baenre, Archmage of Menzoberranzan, casts a foul spell meant to ignite a magical energy that suffuses the Underdark and tears open portals to the demonic Abyss. What steps through surprises even him, and from that moment on, the insanity that pervades the Underdark escalates and threatens to shake the Forgotten Realms to its foundations. Stop the madness before it consumes you! Note for DMs: This adventure is not for the faint of hearted, to run or to play. The module starts with 10 NPCs traveling with the party through the grueling Underdark. This number can grow. The encounters within the book are often incredibly deadly for the characters that would be going through it. This is because the module expects them to run or talk their way through the events, or, in some cases, the module expects them to lose. If your players aren't the kind of party to run, talk, or surrender, do not get this adventure. The module almost requires that you use milestone leveling because the experience provided does not commonly get players to the levels they should be once they get to certain milestones in the story (7th when they leave the underdark, 15th when they face the demon lords.) Good luck and happy questing.

A Kiss to Build a Dream On is a 5e-compatible dream-delve for four level 7 characters. It plays for 3-4 hours. Queen Aisling, newly free of insomnia (see The Trouble with Dreams), has become an avid dreamer. A little too avid in the eyes of some. Under ducal questioning, her Majesty confessed there was something more going on; She’s fallen in love with a man she has seen in her dreams. The adventurers have been assembled to mount an expedition into the Realms of Slumber. With the aid of an uneasy Somnomancer, a magic spell, and an ice pick, a rift to the Realms of Slumber is opened! Warning: die in the Realms of Slumber and you’ll be damned to sleepwalk the rest of your life - a fate worse than death! The heroes are entrusted with an Interdimensional Valise. It functions as a Bag of Holding, except that it can also carry Dream Creatures into the real world. To appease the Queen, the adventurers must get the Man of Her Dreams into the Valise and then return with him to the Waking World. The adventurers will be rewarded with a Knighthood and an Estate in the Vinelands (10,000gp value) if they succeed.

The rubble-strewn passageway twists and turns, winding ever deeper into the mountain, lower and lower into the bowels of the ancient, forbidding halls of long-dead dwarves. The torchlight flickers, threatening to succumb to the oppressive darkness. Creeping along one striated granite wall, Arikus the warrior moves cautiously toward the great cavern ahead, its sides and walls disappearing into the gloomy distance. Cocking his head to one side to listen, he holds his hand up for a moment, demanding unconditional quiet from from his companions. Then , his arm relaxing in relief, he waves everyone forward and moves into the open. Before him, scattered to the far walls of the enormous cavern, are piles upon piles of glittering treasure - coins from countless kingdoms, sparkling gems, exquisite jewelry, and items of wondrous power - enough for twenty kings' ransoms. Arikus laughs gleefully, thrusting both hands into the nearest cache of coins to let them runs through his fingers. At that moment, a monstrous shadow looms threateningly over him. Looking up, Arikus blanches and stumbles back in horror before the terrible visage of a Great Red Wyrm. The fearsome dragon opens its razor-filled maw and spews forth a gout of white-hot flame, engulfing the hapless warrior.... The ultimate Dungeon Master Fantasy! This is the most deluxe dungeon. Designed to appeal to discriminating and demanding role-players. Adventurers, beware. This is more than just a dragon hunt. Within the lair of the beast lie cruel and deadly traps, befuddling conundrums and puzzles, and cunning minions that will be the end of overconfident or careless adventurers. Comprised of three 64-page books, for two adventures that link to one super-campaign 12 full-color reference cards 16 special player handouts Eight Monstrous Compendium sheets A Sheet of cardstock standups with 24 plastic bases. Six full-color poster maps, two of which link together to make a giant tactical playing surface for use with miniatures or the included cardstock figures. TSR 1089

An offer of exploration and adventure leads to a chilling underground dungeon. A mystical object is being asked to be retrieved by the local Wizard. This is the second adventure in a miniseries with the following adventures being: A Chance Encounter An Urgent Rescue A Dark Veil Falls

When the Pathfinder-obsessed daughter of one Qadira's most powerful trade princes goes missing trying to impress the Society, her father angrily demands the Pathfinders track her down or face expulsion from Katheer. Tracking the missing princess leads you to an underground complex filled with traps, tricks, and a creature so powerful, she's lived for a thousand years. Can you save the princess and uncover the power of the Eternal Obelisk?

Amidst the misty, mournful waste stands a house unaffected by time. The secrets hidden inside could change the world or remain buried in obscurity. The mission of your party is to head there and retrieve all valuable papers and artifacts. But what could await on the way through the lands of distorted magic? Nobody knows for certain. This adventure is designed for a team of four 3rd-level characters. Estimated time: 2–3 sessions, 4–6 hours each. This adventure is focuses on exploration of the Mournland, all that is left from the kingdom of Cyre.

Sinister, twisting images...Horrific nightmares lurking at the corners of the mind...These are descriptions used to tell the tales of the Labyrinth of Madness. But these tales of the labyrinth are only legends, really, nothing more than stories used to frighten children at night - until a mysterious scepter is found, bearing within its crystal head a visage of insanity and terror, and also delivering a message: "Disturb not the Labyrinth of Madness again, and live a while longer." Now a powerful temple suffers from a tragic curse that is somehow linked to the labyrinth. Does there exist a group of heroes who can penetrate this dark and terrible place to life the curse...and survive? Labyrinth of Madness is a multiple-level, three- dimensional dungeon adventure, a puzzle within a puzzle, that commemorates 20 years of gaming with TSR. TSR 9503

The Cagewrights are defeated. The Tree of Shackled Sould is no more. Lord Vhalantru has been exposed and put down for the menace he truly was. The town of Cauldron has been saved from volcanic apocalypse. The heroes of Cauldron have earned their place in history, and more than deserve a time of rest, yet fate is not so kind. For the true menace behind the curtain still lives. As long as Adimarchus, the demon prince of madness, continues to dream his haunted dreams and writhe away the years in torment in the fiendish asylum of Skullrot, Cauldron can never be truly safe. "Asylum" concludes the Shackled City Adventure Path that began with "Life's Bazaar" (Dungeon #97) and continued with "Flood Season" (Dungeon #98), "Zenith Trajectory" (Dungeon #102), "The Demonskar Legacy" (Dungeon #104), "Test of the Smoking Eye" (Dungeon #107), "Secrets of the Soul Pillar" (Dungeon #109), "Lords of Oblivion" (Dungeon #111), "Foundation of Flame" (Dungeon #113), "Thirteen Cages" (Dungeon #114), and "Strike on Shatterhorn" (Dungeon #115). Pgs. 40-65

When local farmer Jonas Cappa goes missing while hunting mushrooms and then reappears, hours later, naked and without any of his belongings, his wife goes to the party to investigate. Jonas claims to have fallen into a hole in the ground, but none can be found. What really happened to him and can it be stopped before things get worse? (Spoiler: they are probably going to get worse). A one-shot adventure for characters of levels 1-4 designed to be dropped into any campaign, inspired by the X-Files (but firmly D&D).

As a new Ice Age spreads across the Forgotten Realms, cities fall to the unstoppable Glacier of the Frostfallen – all but Stormhaven, holding on against the forces of the Frost King. Neverspring Frost is a 17th-20th level campaign for seasoned players featuring the existential threat of an eternal winter blighting the world of Toril. The city of Stormhaven has managed to survive the Glacier, a wall of magical winter that has enveloped the land. From Stormhaven, a party of adventurers arises as legendary heroes who will strike back against the legions of Frostfallen and reclaim the world.

You are Erystelle of Dorneryll, famed elfin champion and magic-user. After years of adventuring, you have come home to the Emerlas - the hauntingly beautiful elfin woodland at the tip of Canolbarth forest. A place of legends and of peace. The journey has been long, but soon the winding forest track will bring you to Dorneryll, the majestic oak tree home of your childhood. Ahead, you glimpse a plume of smoke curling lazily into the sky. Dorneyll is close, and your mind floods with thoughts of home. Suddenly, your reverie is shattered! The thin plume of smoke is gone, an in its place a column of red flame leaps high among the trees. Dorneryll is under attack! Gripping your lance, you urge your mount into a gallop. Starbow surges forward; your war dogs close on her heels... Blade of Vengeance is an adventure for one player and one dungeon master, featuring a lone elf against the forces of evil. Can you save the Emerlas from destruction? The answer waits inside. TSR 9108

A vanished tome, a faded legend, and the end of the world. Out of the eons, the deadliest artifact. At least one magic-user is required, and fighters and thieves would be very helpful. Magic-users may have a special interest in this quest due to the nature of the item for which they search. Traps and puzzles are a dominant theme, and problem solving is necessary. Pgs. 41-64