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 Conspiracy of Doors is a Dungeons & Dragons adventure for five player characters of 11th level. It can serve as an introduction to Sigil, the City of Doors, as well as a group of adventurers' first taste of action at the paragon tier.

The adventurers have delved into the Abyss to strike at the Demon Lord of Undeath, Orcus. On the layer of Thanatos, the Blood Lord has many outposts from which he spreads his corruption. One of his primary lieutenants is Doresain, the Ghoul King. If the PCs kill Doresain in his lair, they will strike a real blow against the foul demon lord. Pgs. 174-179

All of the Treasure, None of the Traps is an adventure that includes a single gauntlet of traps that contains twelve traps; meaning that it has either one or twelve encounters. The adventure consists of a long, twisting corridor with all of the traps set off, but these traps are reset by the PCs when they reach the center of the area. Pgs. 32-34

Something strange is afoot within the Quivering Forest. So much so that even the elves of Greenhall have left their homes to seek out help from their newfound neighbors. But, their tales of a strange beast are not earning them any favors; especially among the Vistani, whom the elves suspect are to blame for their ills. Return once more to the Quivering Forest and learn the terrifying truth! Part Two of Misty Fortunes and Absent Hearts.

Operating as secret agents for the Lords of Waterdeep, a promising lead takes you deep into the world of the Xanathar, but what will it take for you to return?

The Approaching Swarm is a short adventure for four 9th-level characters. The party can consist of any mix of classes, but it should include at least one character that is good in wilderness settings, such as a druid, ranger, or barbarian, and at least one cleric. This scenario should prove a reasonable challenge for characters from 8th to 10th level. The adventure takes place in a swampland that is near a small settlement. The adventurers have located the secret lair of Aleretheral, an insane half-orc druid with mastery over vermin. He has been breeding and training monstrous vermin to defend his territory. With the adventurers invading his home, he will do anything he can to protect it.

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.

A war criminal is broken out of prison by well-armed kobolds working for a mysterious mastermind who threatens the gnomish city of Hupperdook.

The citizens of Phent, which is a large town in Thesk, are a proud, yet warm and accepting folk. For the past nine years, they have been host to over six hundred orcs, which is certainly an anomaly in the average Faerûnian community. In 1360 DR, Zhentil Keep sent one thousand orcs to aid in the fight against the westward-sweeping Tuigan hordes. The orcs fought well—well enough that the citizens of Thesk welcomed them as citizens when Zhentil Keep abandoned them in this land in 1363 DR. Still, a current of unsettling concern lingers. Some believe that the orcs are still part of Zhentil Keep’s strike force, but that they went on standby to wait for the moment when their masters give the signal. Once allowed, these orcs may launch a crippling attack from within. However, in nine years, no signal has been given—at least none that any of the paranoid folk have noticed. The orcs are enthusiastic citizens and, apart from some rowdiness during breaks from the mines or fields, they have hurt no one. And then, a prophet comes, with a message of war . . . In A Call to Arms, the player characters (PCs) have a chance to prevent orcs from rising up against some humans. This adventure is designed for four 9th-level D&D® characters. The encounters can be adjusted up or down to suit your group’s needs, however.

Kingdom of the Blind is a short adventure for four 8th-level characters. The adventure is set in a minor duchy that is fairly removed from the ruler of the land. As a result, trouble can brew in the land and the king would not know immediately. The PCs had just entered the citadel in the last episode. Are they now dealing with hauling statues or fighting angry staircases in their efforts to get to the second floor?

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?

You will take up the mantle of heroism in a grim world where simple survival cannot be taken for granted. These heroes will shape the world of Athas while they grow in power and prestige - or die trying. Your character has been asked to aid a secretive faction of the Veiled Alliance in the Free City of Tyr against an unknown assailant. Ashes of Athas is a 4e D&D campaign set in the world of the Dark Sun campaign setting.

"Every year, the Awakening Festival draws folk from across the rich expanse known as Godsbreath, uniting celebrants as they tell their history in song and set the course for the upcoming year. But the mood turns grim when a group of farmers suddenly turns violent, manipulated by an unknown magical malady. In the aftermath, well-known trader Aunt Dellie fears for her goddaughter Kianna-a worker at the farm the attackers came from, deep within the outlying farmlands known as the Rattle. When characters investigate, they are pitted against a lurking evil that uses a young woman's grief and loneliness to lure new victims." Roll20VTT

Kravenghast Necropolis is hidden in a valley that was formerly part of a now dead city. It consists of a small cemetery that sits atop an abandoned necromancer's laboratory. The necropolis has been refitted as a temple to Vecna, the undead God of secrets. The mausoleum in the cemetery contains a secret spiral staircase that leads to the underground laboratory. The temple is populated by a twisted cult of Vecna, led by the lich-priest Mauthereign. Pgs. 96-103

In this Adventure, the heroes explore the lair of an adult green dragon who has become a dracolich. She is served by living and undead minions and slaves. Pages 302-307

Adventurers explore a frozen, buried dungeon of long-dead giants that turns out to be the birthplace of Runemagic itself, and may still hold the secrets of that forgotten art. However, even if they do survive the extreme cold and unfriendly denizens, they will still have to face the massive Runeforged Guardian before they can escape. This adventure includes lots of interesting multi-part traps and alternate encounters that can be added or swapped out in several places.

Stop evil cultists of the Crushing Wave. The party rescues a member of the Brotherhood of the Cloak in Mulmaster (local mage guild); Drayson Fivestar. Drayson asks them to investigate the murder of his colleague. After some urban investigation, the investigation leads to a former guard tower of the Zhentarim, now occupied by elemental cultists. The tower was submerged in mud, but recently uncovered. The party faces of with the cultists. (Large page count, but feasible as a one shot after some editing, will probably take two sessions at most)

"The end times approach. To everything there is a season. Every campaign has to come to an end sometime, so why not go out with a bang? The Apocalypse Stone is an epic adventure to challenge high-level characters, but beware, it will destroy your world. This adventure has it all: gods and devils, plague and pestilence, rains of fire, and world-shattering conflicts. Here is an opportunity for PCs to display undreamt-of heroism. . . or fall to ultimate defeat. The Apocalypse Stone is a tool for Dungeon Masters to present extremely challenging encounters for high-level parties, to wrap up a long-running campaign. . .or both. This adventure is a literal universe-ender. Past a certain point in the campaign, there is nothing the players can do. The world *will* end.

Dread tales told in the dead of night! When the shadows grow long in Waterdeep and the fireplace in the taproom of the Yawning Portal dims to a deep crimson glow, adventurers from across the Forgotten Realms, and even from other D&D worlds, spin tales of dark dungeons and spread rumors lost treasures. Within this tome are seven of the deadliest dungeons from the history of Dungeons & Dragons. Some are classics that have hosted an untold number of adventurers, while others are newer creations, boldly staking a claim to their place in the pantheon of notable adventures. The seeds of these stories now rest in your hands. D&D’s deadliest dungeons are now part of your arsenal of adventures. Enjoy, and remember to keep a few spare character sheets handy. Includes seven adventures: Against the Giants Dead in Thay Forge of Fury Hidden Shrine of Tamoachan Sunless Citadel Tomb of Horrors White Plume Mountain