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.

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 monastery is in terrible danger. Can you brave the elements and convince the monks to escape? An eight-hour adventure for 5th-10th level characters.

Into the Forsaken Temple's Crypt is a short adventure for four 10th-level characters. The adventure takes place in a buried temple crypt, which has been sealed for centuries. Dungeon Masters can adjust it for higher-level characters by expanding the dead magic areas and increasing the number and power of constructs and undead that inhabit the complex. Some things are best left untouched, and some secrets are best left untold. One such secret is the location of the resting place of the traitor Ellowyn Blacktree. Her body has lain undisturbed for centuries, undead but immobile, in the prison the elves created for her. The elven histories tell that Ellowyn was a powerful wizard back in a time beyond human reckoning. While others worked diligently to learn magic, Ellowyn's arcane powers came to her quickly. In her youth, she called this a blessing from Corellon Larethian, and she worked diligently to serve him for the good of all elvenkind. In time, she became one of seven female elves entrusted with the care of a mythal, or elven place of power, devoted to preserving the balance of magic and nature. But Ellowyn, it is said, kept a terrible secret of her own: She had fallen in love with a drow whom history knows as Orith To'rellen. One dark winter night she betrayed her sisters, Corellon, and all of elvenkind by allowing Orith and the followers of Lolth to overrun and defile the mythal. Ellowyn herself was then betrayed by the drow, who abandoned her on the surface near a vampire's lair as they returned to their home in the Underdark, leaving her to face certain death and elven justice alone. In the depths of their grief and anger, the elves sentenced Ellowyn, perhaps unwisely, to dwell forever in the darkness that she had chosen, thus ensuring that she never followed the normal path of life and death that most elves take. Many elves died at her hands before they could restrain her. With terrible spells rarely seen even in that ancient time, they bound her in an underground crypt far away from any living thing. There, the legends say, she waits, nursing a terrible hatred against elves, drow, Corellon, Lolth, and especially Orith To'rellen.

New to Loudwater, the heroes learn of a tower locked in ice in the nearby wilderness. Traveling there, they discover that the tower’s master left many surprises behind for the unwary. Also available with e 5e solo conversion: https://www.dmsguild.com/product/247505/DD-Solo-Adventure-Menace-of-the-Icy-Spire-5e-Solo-Conversion Pgs. 4-22

The Red Plumes have increased patrols in the region surrounding Hillsfar, and a string of disappearances has followed in their wake. Naturally, this has roused the suspicion of the factions. Join your factions and find out the truth behind the missing farmers. A four-hour adventure for 1st-4th level characters.

The white dragon Hinterbite has kept the barony of Icenvale ruler-less and poor for centuries. But now his power and that of his secret supporters is threatened by the popularity of an heir who hopes to make a change for the betterment of the people. Can the PCs take on the dragon and his minions and restore power to the barony's rightful ruling line? Download this new adventure by Owen K.C. Stephens and let your PCs face the dangers of the dragon lair! Fait Accompli is suitable for 12th-level characters. At its most basic level of use, Fate Accompli is a straightforward quest to clear a dungeon and slay some dragons in an arctic climate. However, it also includes political elements that you may either may play down or use to expand the scenario into a mini-campaign, as you wish. Fait Accompli is a short adventure for four 12th-level characters. It is set in the wilderness north of a minor border barony that has at best an arms-length relationship with any larger nation. Though the adventure requires all these elements to work, it can be set on the outer edge of any kingdom near an arctic region. As always, feel free to adapt the material presented here as you see fit to make it work with your campaign.

Your people once dominated everything south of the mountains; you had the greatest, most advanced underground stronghold ever known to orc-kind. Then the cataclysm happened. Centuries have passed, and only a few tribes have survived and assembled under the banner of one cause. Reclaim what was once yours! This adventure is designed for four to six orc characters

A succubus with an unquenchable lust for power is turning the Cage into a ripping madhouse. And the Lady of Pain ain't pleased. . . . Something's foul in Sigil, berk. A mad slasher prowls the streets, leaving a trail of bloody clues in his wake. Leatherheads boldly court the Lady of Pain, longing for the sharp touch of her shadow. Even the silent dabus're acting barmy, a sure sign that the Lady herself is uneasy. Are these strange events tied to a madhouse full of spell-touched sods ready to slip the bonds of mortality? A curious body'd better step carefully. After all, the dead-book's full of fools who wished for power?or got in the way of another berk's wish. Harbinger House is a Planescape adventure for four to six characters of 4th to 7th levels. From Sigil to the Outlands and back again, the heroes must piece together a puzzle that could shake the Cage to its foundations. A dark secret of the multiverse wails to be discovered in the lunatic asylum called Harbinger House, and only the player characters can shape its power-for good or ill. TSR 2614

The Temple of Draxion is an adventure with 2-3 encounters that uses clever tactics, trickery, and good defensive positions to make low-level monsters challenging. The defenders in the encounter try to deceive the PCs; groups willing to accept anything the DM says at face value will horribly misjudge the actual level of danger they are in. The adventure is set in a partially-collapsed dungeon that was once a temple to Erythnul, but is now the headquarters of a pair of aspiring bandits, and their kobold employees. Pgs. 12-15

Evil Reigns in the Elven Ruins Where elves once built the shining city of Myth Drannor, demons and devils now prowl in search of prey. Ancient evil slumbers beneath mossy stones, waiting for those foolish enough to venture within its grasp. Bold swordsmen, stealthy rogues, and skillful wizards have all met their end within the walls of Myth Drannor. But the lure of the city's magical treasures still draws heroes and villains alike to tempt death—or worse. Drawn by the dream of limitless magical power, the Cult of the Dragon has carved out a secret stronghold in the heart of the ruins. Using the power of a corrupted pool of radiance, the Cultists stand poised to attain their goal of subjugating all of Faerûn... unless a group of brave heroes can stop them first.

Barovia has long suffered under the rule of Count Strahd von Zarovich, but the evil that plagues this land extends well beyond the walls of Castle Ravenloft. See what keeps the good citizens of Barovia awake at night.

To stop a devastating rampage of giants across the land, the party must venture into the lair of the stone giant thane Arnak to uncover the truth about why he has broken his peace with the neighboring dwarves. In the process, they will have the opportunity to retrieve important symbols of the fight against the giants and uncover a dangerous excavation. The adventure is part of the "Against the Giants" series originally by Gary Gygax, hence the writing credit.

Dark Water Trap is a mini-adventure that has a single encounter that involves Duergar using darkness and anti-darkvision to get the player to fall into a Pit trap full of water, so that the party will drown. The encounter either works as a standalone (Ie. the Duergar have been causing trouble), or as a part of a larger adventure or dungeon, Duegar or otherwise. Pgs. 26-27

An unknown force is inciting the people and creatures of the idyllic Greenwood to commit horrific acts of murder and carnage. Can the adventurers quell the towering rage of the rampaging Horseman? Part Thirteen of Misty Fortunes and Empty Hearts.

A dwarven expedition has stopped in Mulmaster for much-needed supplies. Furgis Boltsmelter, their founder and leader, is looking for some “no questions asked” protection for the duration of his stay in the city. Whatever he is trying to protect may not stay hidden for long. Can you keep his secret treasure out of the wrong hands? A four-hour adventure for 1st-4th level characters.

At Restwell Keep, you've heard that fortune and glory await those bold enough to brave the dangers of the Chaos Scar, a valley carved ages ago by a fallen star. The same tales warn that this Chaos Scar draws wickedness to it. Perhaps you can help stem this tide... and gain treasure along the way. While the location is a different keep, this adventure is an homage to B2 Keep on the Borderlands(https://adventurelookup.com/adventures/b2-keep-on-the-borderlands)

The End of the World Is at Hand! A hideous death cult has seized control of an ancient artifact-monument known as Tovag Baragu. The power behind the cult is the Old One himself, Iuz the Evil, demonic master of an empire. He's on an all-or-nothing quest for supremacy over the world—and the heavens beyond. To stop him, heroes must face horrors never dreamed of, journeying to a shadowed city where Death rules and the living cower. Here, Iuz will achieve his mad dream by destroying the imprisoned master of that alien citadel: Vecna, the mightiest lich, an immortal demigod. Two items exist with the power to stop Iuz—the Eye and the Hand of Vecna—but using them carries fantastic risks. Not even the gods know what will be unleashed when these items are fully activated. Die Vecna Die! takes the heroes from the Greyhawk campaign to the demiplane of Ravenloft and then to the Planescape city of Sigil. However, none of the material from those settings is required for play. TSR 11662

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.

Who knows why adventurers are drawn together? The lust for gold, a common foe, or the whimsy of fate? Pull up a stool, stoke the hearth, and let YOUR story begin! A Four-Hour Adventure for Tier 1 Characters. Optimized for APL 1.

The mists have led you deep into Glumpen Swamp to a den of great evil. Within, the unliving son of an unliving god awaits the peace of death that eternally eludes him. Will you grant him his rest, or realize the part he is to play in things to come? Part Seven of Misty Fortunes and Absent Hearts.