Hunt for the Thessalhydra is a short adventure published by Wizards of the Coast as a tie in to the "Stranger Things" franchise and part of the Stranger Things Dungeons & Dragons Starter Set. The adventure features characters, locations, and monsters inspired by that series. The adventure is suitable for characters of level 3-5.

The town of Byr is in need of heroes. Residents of the town of Byr have been kidnapped. Some think it was marauding Hobgoblins, but a grizzled and crippled veteran who helped to drive the Chagmat (monstrous spider-people) back many years ago believes that the Chagmat are back. Their forgotten temple is believed to be up on Little Boy Mountain. He argues that the mountain is where answers, and the missing townsfolk, can be found. Pgs. 33-48

Giants have been raiding the lands of men in large bands, with giants of different sorts in these marauding groups. Death and destruction have been laid heavily upon every place these monsters have visited. This has caused great anger in high places, for life and property loss means failure of the vows of noble rulers to protect the life and goods of each and every subject -- and possible lean times for the rulers as well as the ruled. Therefore, a party of the bravest and most powerful adventurers has been assembled and given the charge to punish the miscreant giants. This module contains background information, referee's notes, two 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 first of a three-part expedition adventure which also employs DUNGEON MODULE G2 (GLACIAL RIFT OF THE FROST GIANT JARL) and DUNGEON MODULE G3 (HALL OF THE FIRE GIANT KING). TSR 9016

The ruined siege castles outside Absalom have long beckoned adventurers looking to make a name for themselves. Now an earthquake has cracked open one of these fabled ruins, and its lost mysteries and fantastic treasures lie exposed for the first time in centuries. But the tower's empty halls once more echo with living footfalls, and a new master has claimed the Fallen Fortress as his own.

The sewers beneath Mulmaster have always been dangerous, with countless stories of brigands, murderers, and worse that lurk beneath the streets of the City of Danger. But those stories pale in comparison to a new threat under Mulmaster, one brought to light by a strange and disturbing corpse recently found. It is up to you to learn the terrifying truth of what lurks below.

The Necropolis of Nuromen is a modular quest designed to let the referee introduce a group of 1st level characters to the thrills of Underworld exploration as they attempt to unravel they secrets of the evil necromancer’s lair and deal with some bandits, too. The Necropolis of Nuromen is set in a fantasy realm, beginning near the small town of Camlann Castle and leading adventurers to explore the sinister Necropolis of Nuromen. The narrative unfolds around Nuromen the Necromancer, who fell to ruin by dabbling in forbidden magic, leading to the downfall of his tower and the town known as Law's End. The adventure includes exploration of a haunted forest, encounters with various creatures, and a quest for lost treasures and magical artifacts hidden within the depths of the necropolis. To play this adventure you also require the BLUEHOLME™ Prentice Rules or the BLUEHOLME™ Journeymanne Rules. This is an updated Version of "Maze of Nuromen" from 2013.

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

Two hundred years ago, the great dwarf smith Durgeddin the Black built Khundrukar, a hidden stronghold for his war of vengeance against all orckind. For years Durgeddin labored, until the orcs discovered Khundrukar and stormed the citadel, slaying all within. Legends say that Durgeddin's masterful blades and glittering treasures were never found.

You wake up in a pitch-dark cavern... The stench of bodies fills your nostrils. The crack of bone and the sound of teeth rending flesh are the only sound you hear. Something is feeding nearby...something you can't see. We Eat in the Dark is a deadly adventure for 3rd or 4th level characters. Navigate the caves of the Darkshard Abattoir, where light sources are muted and creatures hid invisibly in the dark. Fight for your life against troglodytes empowered by a mysterious artifact and other cavern hazards. Includes an appendix for limited starting gear for a more lethal challenge. A perfect murder-happy one-shot for your players to question your friendship.

The final confrontation with the giant, King Snurre, and the entry of mighty adventurers into the caverns under his stronghold (DUNGEON MODULE G3, HALL OF THE FIRE GIANT KING) discovered the Dark Elves, the Drow, had instigated the giant alliance and its warfare upon mankind and its allied races. 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 cavern area, encounter and map matrix keys, and an additional section pertaining to a unique new creature 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 first part of a series of three modules (with SHRINE OF THE KUO-TOA, D2, and VAULT OF THE DROW, D3), or as the fourth part of a continuing series of modules which form a special progressive campaign scenario (DUNGEON MODULES G1, G2, G3, D1, D2, D3, and Q1, (QUEEN OF THE DEMONWEB PITS). TSR 9019

a baron recruits the party to find a set of magical swords as well as explore a mine shaft that connects to the under dark

The valley of Haven was a peaceful land. Its crops were abundant, its citizens prosperous. Elves, Dwarves, Halflings, and Humans lived together in harmony. Hidden away in the heart of the Thunder Mountains, Haven was a safe place to live. The rivers were sweet and pure; the weather was pleasant and warm. Something terrible has come to pass in Haven - terrified refugees speak of a fabulous ruby uncovered in the mountains and a catastrophe that befell the palace. Whatever the cause, Haven now lies in chaos. Raiding bands of orcs, goblins, and hobgoblins terrorize the countryside. The disaster happened so suddenly that the citizens are confused and helpless. Without their leaders, who are trapped in the palace, they have no courage to fight back. The situation has become desperate. TSR 9044

The town of Sandpoint, Varisia, Inner Sea Region has put out a bounty on the nearby tribe of Licktoad Goblins in retribution for the goblins raiding traders and travelers near the quiet town. The party takes up the bounty and ventures into the swamp; eventually finding the goblin village in ruins and it's inhabitants scared in it's burned huts. The party finds out; either through investigation of the ruins or the goblins themselves; that a group of skeletons with eastern arms and armor had ransacked the village and took a stash of fireworks that the goblins stole from an old shipwreck. The party then makes it to this cave and finds it empty except for a half dozen skeletons. Further in past the skeletons is their leader, a skeletal samurai who fights the party in an attempt to defend his treasure. The treasure turns out to be a letter that reveals that secrets of the Kaijitsu family; the same family their good friend Ameiko who runs the Rusty Dragon inn belongs to; that lies in wait in the abandoned town of Brinewall to the northern boarder of Varisia. Ameiko along with several other important NPCs with a caravan north. It's recommended that GMs create encounters for the caravan trip north as it's essentially 3 weeks of travel with nothing in it. It's also recommended that GMs completely ignore caravan rules; they're not flushed out and they're not fun to run. The party and the caravan reaches the abandoned town of Brinewall where their friend Ameiko becomes possessed and is thrown into a coma; where the other NPCs agree to take care of her while the party explores the town and castle. The castle is a three floor behemoth of a dungeon populated by Dire Corbies, Troglodytes, and various other monsters all under the leadership of Kikonu, an Yamabushi Tengu Oni. The goal of exploring Brinewall Castle is to find the two keys to the vault; one of which is on the Yamabushi Tengu while the other is on a Half-Fiend Decapus that lives in the basement of Brinewall. Once the PCs enter the vault they find the Amatatsu Seal; one of the seals that cement authority to one of the ruling houses in Minkai of Tian Xia; as well as several visions that show that Ameiko Kaijitsu is the rightful heir to be ruler of Minkai and that they'll need to travel north to do so. Such ends the first book of six.

The Fate of Faerûn Lies in Shadowy Darkness! Daggerdale is reeling from a sudden series of murderous drow raids. As a grave threat to the entire surface world develops in the war-torn dark elf city of Maerimydra, intrepid heroes must discover its source and destroy it, if they can.

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

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

Most adventurers like to think that when their number is finally up, their colleagues will bring them home, either to be raised or at least returned to their families for a proper burial. But how far will the PCs go in order to do right by a fallen adventurer? And will they draw the line at hauling his coffin out of the Underdark? Pgs. 20-40

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

This material was originally published as three separate adventures: G1 (STEADING OF THE HILL GIANT CHIEF), G2 (THE GLACIAL RIFT OF THE FROST GIANT JARL), and G3 (HALL OF THE FIRE GIANT KING). Contained herein are referee notes, background information, maps, and exploration keys for three complete adventures using the ADVANCED DUNGEONS & DRAGONS rules. This module can be used alone or as the first in a series of adventures that includes Dungeon Modules D1-2 (DESCENT INTO THE DEPTHS OF THE EARTH), D3 (VAULT OF THE DROW), and Q1 (QUEEN OF THE DEMONWEB PITS). TSR 9058

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!