A bubbling stream cascades into a hole in the earth, leading to a series of underground watercourses and scintillating grottoes. Adventurers who delve within may discover odd mosses and fungi, a ruined temple complex, and the lair of a crystal-eating dream dragon.

It's all over (and literally so) after midnight. A mission with an unforgiving deadline. The characters must remove the magically-infused remains of a dead wizard and his medallion from a crypt. Pgs. 10-23

Stupid dwarves. You visit their delve, and they announce that they are all off to belt the living daylights out of some troublesome goblins. And can you go along? No chance, it's some sort of 'crusade' and they don't want outsiders along. So, all they are prepared to offer you is the honour of defending all the old dwarves and the kiddies and the others who haven't gone off on the goblin-bash. So, it looks like you'll just have to sit around and drink all the beer and be bored until they - Wait - what's this? A raid on a neighbouring delve; that's a stroke of luck. Now you can chase the raiders, beat them up, and then the dwarves will be grateful and you can drink some more of their beer. What could be simpler?

A level 2–3 sewer adventure by Glynn Seal. PCs plumb fetid sewers and recently-revealed secret halls, in search of a lost worker. In these forsaken chambers, they may find answers and treasures, but may also come face-to-face with a bloated monstrosity and its depraved followers. For Old-School Essentials (OSE) Included as one of four adventures in "Old-School Essentials Adventure Anthology 1"

Five exciting short adventures to make your Basic campaign come alive! The Clearing of Castle Caldwell - A local merchant has recently purchased a small castle... but when he tried to move in, he discovered that the castle was already inhabited! Dungeons of Terror - A strange trapdoor in the floor of Castle Caldwell leads to a terrifying challenge! The Abduction of Princess Sylvia - On the eve of her wedding, the beautiful princess has been kidnapped! Can you save her in time? The Great Escape - Imprisoned in an enemy fortress, without armor or weapons, your situation seems hopeless. Yet there may be a way to freedom... The Sanctuary of Elwyn the Ardent - A mystical chime of great power has been stolen - but by whom? In the wrong hands, the chime can cause untold harm! But can you find and defeat this mysterious and powerful creature? TSR 9143

For the past several days, dozens of strong earthquakes have rocked the coastal area surrounding the underground Temple of Poseidon. Since the first quake, there have been a growing number of reports of strange events and macabre occurrences throughout the area. Several families near the temple have abandoned their farms and refused to return. They claim to have been terrorized by inhuman specters who prowled about their farms late at night. One of the farmers says he found a farm animal crucified and eviscerated in a ritualistic fashion on his front porch. Following the first tremors, all communications with the Temple of Poseidon, seemingly the center of the troubled area, were cut off. Messengers dispatched to the temple to request guidance from the Holy Oracle located there have not returned. Now the darkness has spread to this town. Unnatural births have occurred. Strange cries can be heard in the night, and there is a cowl around the moon. Magical divining has proven useless in naming the dark forces that invade. Many of the townspeople have already abandoned their homes and those who remain have but one recourse left: They have sent out a cry for hardened adventurers, experienced in dispatching evil. They must travel to the temple to discover the fate of the men there, and, if possible, elicit their help in destroying the growing heinous power. Pgs. 31-46

"Terror by night! The village of Orlane is dying. Once a small and thriving community, Orlane has become a maze of locked doors and frightened faces. Strangers are shunned, trade has withered. Rumors flourish, growing wilder with each retelling. Terrified peasants flee their homes, abandoning their farms with no explanation. Others simply disappear. . . No one seems to know the cause of the decay -- why are there no clues? Who skulks through the twisted shadows of the night? Who or what is behind the doom that has overtaken the village? It will take a brave and skillful band of adventurers to solve the dark riddle of Orlane!" TSR 9063

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

Buried in fire, but hardly dead. Only the Keep survived the destruction of Koralgesh, but few adventurers will survive the terrors that now stalk the lost Keep's halls. Players hear rumours of the Keep at Koralgesh and then traverse it to acquire the treasure within. Pgs. 45-64

Deep in the forest, an ancient pyramid was constructed many millennia ago for an unknown purpose as part of a forgotten modron war. Within it is a labyrinth of strange traps, taxing puzzles, and some unwelcome troglodytes. This adventure for 1st-3rd level characters can be played as the first part of the Legacy of Zandrax campaign or as a standalone one-shot.

His name has inspired fear in legions of heroes, and his cult has lurked in the dismal reaches of the world for countless ages. His minions are savage and feral, his worshipers vile and wretched. He is Demogorgon, and his temples are nightmare realms haunted by primeval menaces and hateful legacies from a time when the world was savage. And now, a vengeful death knight has discovered one of these lost temples—will the PCs aid him in his dark quest for revenge, or will they fall before the awakened host of the Prince of Demons? Pgs. 64-83

A Ravaged Land... Villains that really are larger than life... A time for heroes... A decade ago, the land of Geoff was overrun by a horde of giants, ogres, and evil humanoids, its people either slain, enslaved, or driven into exile. Now at last the tide has turned. The time to free the people of Geoff from their servitude to the giantish tyrants has come! But don't forget to watch your step when you confront the true masters behind the giant Clans! Contains the full text of three classic adventures by Gary Gygax: G1, Steading of the Hill Giant Chief; G2, The Glacial Rift of the Frost Giant Jarl; and G3, Hall of the Fire GIant King. Details Eighteen new encounter sites in the war-torn land of Geoff, linked together to form a grand campaign. Provides dozens of hours of gameplay as the heroes struggle to free an entire country from the grasp of giant overlords. TSR 11413

One of the original D&D classics, "The Isle of Dread" is a hex crawl wilderness adventure. It focuses on surviving primitive beasts, dinosaurs, and pirates while uncovering the mystery of the island's inland city, where a great treasure awaits. From the cover: "This module contains maps and background material for the Isle, fifteen new monsters, and suggestions for further adventures. In addition, The Isle of Dread contains a map and background information for a large continent, and eleven smaller maps for encounters on the island itself. In this module, players will push their way through dark jungles and treacherous swamps to discover the lost plateau, and the final secrets of - the Isle of Dread!" TSR 9043

A shrewd, spell-using green dragon has taken over the deepest chamber of a limestone cave as his lair. The dragon has persuaded a tribe of troglodytes to live in the outer chambers as a sort of "protective buffer" in return for gifts of magical treasure. The troglodytes cherish the useless bits of magic without realizing their modest worth. The outer chambers of the cave are protected by the troglodytes, the beetles and centipedes the troglodytes raise as cattle, and wild creatures. The green dragon uses traps, illusions and magical devices to protect his inner chamber. Wyrmhaven is the second dragon's lair to conquer. Part of TSR 1073 The Dragon's Den

The Pit of The Oracle is a game module designed for use with the rules of Advanced Dungeons & Dragons. It can be used by itself as a self-contained campaign (or as a springboard to a larger campaign), or it can be easily incorporated into an existing campaign. Comment: Level range is my best guess. Adventure includes a lot of unique short-hand

Important: The adventure is 1e but it has monster conversion notes for D&D 4th edition The town of Highport, once a human community overlooking Wooly Bay from its perch on the northern coast of the Pomarj, fell prey to hordes of humanoids swarming out of the jungle-covered hills surrounding the settlement. Though the orcs, goblins, kobolds, ogres, and gnolls razed much of the place in their ferocious rampages, the smoldering ruins they left behind soon became a new kind of community, a place of trade between the humanoid “locals” and the unsavory human traders who have no compunction about doing business with them. Slaves are a commodity in ready supply in Highport’s market, since many pirates raid up and down the coast of the bay, putting fishing villages to the torch and filling their holds with captured refugees. Slavery has become a thriving business in the town, and rumors abound of a cartel of Slave Lords who run things from behind the scenes, filling their coffers in secret from the buying and selling of human chattel. The trade has become so prolific that the good folk to the north have grown tired of these depredations and decided to fight back. Forces of righteousness and honor have recently descended upon Highport, some openly and others in secret, in various attempts to destroy the machinations of the Slave Lords and abolish the abominable enterprise that has taken far too many loved ones from home and hearth. One such doughty servant of goodness is Mikaro Valasteen, a cleric of Trithereon. Mikaro slipped unnoticed past the crumbling walls of Highport with a single mission: to rescue and transport as many slaves to their freedom as possible. Mikaro and a handful of faithful assistants located a number of escaped slaves—as well as rescued a few more not sufficiently restrained and guarded—and shepherded them through the gates and beyond the reach of their humanoid tormentors, returning them to their lands and homes. This covert freedom brigade enjoyed remarkable success early on, since the servants of the Slave Lords were often lax in their vigilance and sloppy in their efforts to prevent loss of the “merchandise.” After one too many shipments never made its destination, the humanoids stepped up their security and the normal channels of escape from Highport closed to Mikaro and his team. He cannot risk exposure by smuggling the freed slaves through the gates as merchandise any longer, since shipments of goods are now regularly stopped and checked. No longer able to free the slaves in that manner, Mikaro began hiding his charges in an abandoned villa in a particularly rundown part of the town. Although they are safe for the moment, their numbers have grown unmanageable, and the priest fears it is only a matter of time before someone slips up and brings slavers to their doorstep. Ever more desperate to find a new means of escape from Highport, Mikaro has started work on a plan that is both daring and dangerous. He intends to use a series of old sewers coupled with natural caverns running beneath the town as an escape route to the sea beyond the walls. But he needs someone to clear out the creatures and pitfalls he knows lie within. Pgs. 2-27

On the border between Anuire and the land of the Khinasi, the Three Brother Mages fight an ancient and immortal awnshegh, the Chimera. The game of cat and mouse has recently begun to draw regents from the entire region. Rumors say that the blade of the last Anuirean emperor, the Sword of Roele, has been tracked to the Chimera's domain, the Chimaeron. The fact that the Gorgon's armies are mustering in Kiergard seems to support the rumor. But choosing sides between the Chimera and the Three Brothers is not easy matter. If the chimera drives the Brothers out, the trade routes through the Chimaeron may be sealed, leaving the seas free for the Khinasi to monopolize trade. If the Brothers drive the Chimera from the magical sources that give her strength, they may establish a beachhead for the Khinasi traders, who are slowly gobbling up the lands of Anuire just as their own lands were once annexed by the empire long ago. Who will you and your comrades ally yourselves with? Who is the true enemy? Can you recover the Sword of Roele before anyone else does, and lay claim to the Iron Throne? This Birthright adventure is suitable for use with any party of three to six characters of levels 5-8, including at least one regent. You must have a copy of the AD&D game rules, the Birthright campaign setting, and the Cities of the Sun campaign expansion to play. TSR 3118

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!

Deep beneath the Isle of Dread, in a place forgotten by the world of light, an ancient, unfathomable evil festers. Within the desiccated ruin known as Golsimorga, the debased kopru servants of Demogorgon work foul rites, steeping immature shadow pearls in pits of liquid insanity. None from the world above have yet fathomed what terrors lurk beneath the Isle of Dread, nor what mad scheme roils to profane life deep within the city's gangrenous corpse. "The Lightless Depths" is the sixth chapter of the Savage Tides Adventure Path, a complete campaign consisting of 12 adventures appearing in Dungeon magazine. For additional aid in running this campaign, check out Dragon magazine's monthly "Savage Tidings" articles, a series that helps players and DMs prepare for and expand upon the campaign. Issue #353 of Dragon features ways to improve the PCs' vessel, the Sea Wyvern, as they take their adventures back to the seas. When the PCs journey deep under the Isle of Dread to find the source of the shadow pearls, they discover horrors beyond imagining in a haunted underground city perched on sanity's razored edge. Pgs. 28-66

Arcanamirium transmuter Maren Fuln found a magically sealed amulet in the school's library and kept it as a shiny bauble. Little did he know the amulet contained an entity far worse than he imagined, and by unsealing it, he loosed a revenge-obsessed horror into the sewers beneath the school. Can the Pathfinder Society halt the beast’s plan in time, or will he build his army of revenge and sow chaos in Absalom?