A venom maw hydra lair suitable for four or five 10th-level characters. The Red Craw Marsh, so called because of the delicious and plentiful red crayfish that live in the area, is a boon to the nearby village. More than a few intrepid souls brave the swamp each season to collect the crayfish. They either sell the crayfish to local establishments or ship them to nearby cities, where they earn a good price as the crayfish is a delicacy among the wealthy. The villagers have established a tentative peace with a clan of trollkin that inhabit the swamp. The crayfish collectors pay a small fee to the trollkin, who allow them to ply their trade in the marsh without (much) interference. It is a tense but profitable relationship for all involved. A powerful creature has moved into the marsh, however, threatening the delicate balance. When a venom maw hydra decided to move to the area of the marsh between the human and trollkin villages, it brought along a number of creatures that worship and serve it. This hydra and its allies have killed some of the crayfish hunters and some of the trollkin. Each side, unfortunately, believes that the other has broken the truce, thus stirring up animosity and putting both groups on the verge of war.

The natural world is dying and Thymia Scarletscale has had enough. It's time to destroy civilization and pluck the humanoid parasites from the face of this world. And honestly, is she wrong? Will the players succeed in infiltrating Thymia's lair The Verdant Phronstistery and bring an end to her schemes? Or will Thymia & her team of yuan-ti research assistants create an army of monstrous insects to wipe humanoids from the face of the world? Greenhouse of Nightmares is the first installment in Pretty Little Liches: a trilogy of adventures centered around three unique liches and their lairs designed for high-level play. These three lairs and the surrounding regions can be run independently as individual adventures or tied together into a mini-campaign that centers on the destruction of the Green Hand, an organization of dangerous liches. A 3-5 hour Dungeons & Dragons 5th Edition adventure for Tier 4 (level 17-20) characters. This adventure includes: 6 Random Encounters for a Deadly Swamp, Battle Tactics for a 3-Stage Boss Fight, a CR 26 Medusa Lich with New Legendary Actions, 7 New Monsters, & 2 New Magic Items!

The little fishing town of Saltmarsh is threatened! Why are lizard men gathering force nearby and why have they been buying large quantities of weapons? A party of bold adventurers must answer these questions or the people of salt marsh will never live in peace! Danger at Dunwater is the second part in a series of three modules designed and developed in the United Kingdom for beginning adventures with the AD&D rules. Its plot follows direct from that of the first part (Module U1 - The Sinister Secret of Saltmarsh.) TSR 9064

A prescription for evil. The king's question is, "Do you make house calls?" To Cure a Kingdom is an adventure for ADnD, set in and around a small city state that is suffering from a deadly disease of magical origin. The party must set out into the swamps in search of a cure. Features monsters with psychic powers as well as extra-dimensional travel. Adventure may be connected to further Underdark adventures with relative ease. Pgs. 8-25

Many centuries ago, the dwarven kingdom of Sarphil stretched out across the Galena Mountains east of the Moonsea. They dug for the precious metals hidden beneath the rocky terrain, and they established numerous cities and settlements to aid in their excavation and manufacturing efforts. This was during the early days of Myth Drannor, the elven kingdom in the forest of Cormanthor, and the dwarves and elves initially clashed as each sought resources and expanded their territories. Myth Drannor and Sarphil eventually settled their differences, and many dwarves moved into the elven city to offer their services and expand their knowledge. In the Galena Mountains, Sarphil continued to flourish. Unfortunately, these days of prosperity did not last long. The last great king of Sarphil was lost in the dwarven city of Mount Throndor, beneath the mountain peak of the same name, and Sarphil withered under bitter clan disputes since no single family could claim legitimate lineage over the fragmented kingdom. What happened under Mount Throndor has been a mystery for thousands of years. Many attempts have been made to reclaim the lost riches and legacy of the last Sarphilan king, but powerful wards have prevented intrusion under the mountain, wards erected by the dwarves of Sarphil. Were the wards built to keep outsiders from intruding – or to keep something inside from escaping? An enterprising dwarven leader wants to find out, but she is going to need some help from a band of heroes. Horrors of Mount Throndor is a Dungeons & Dragons adventure of exploration, darkness, and terror featuring a lost dwarven city overrun by forces from the Far Realm and the journey to cleanse it once and for all. The adventure is designed for a group of 11th-level characters, and successful completion of the adventure should put the characters at 16th level. Here There Be Monsters Mount Throndor has become infested with madness from the Far Realm. During their journey to penetrate the ward and through the city itself, the characters are going to face gibbering horrors, unpredictable slaadi, fanatic stone giant cultists, degenerate star spawn horrors, mutant derro, undead dwarves, and countless golems. The ancient breweries of Mount Throndor have produced alementals who slither in the darkness, and a great dwarven war juggernaut named Big Hans stomps through the city. Legendary Villains and Epic Moments Though it has been sealed, Mount Throndor is not empty. The characters have opportunities to meet, interact with, and (likely at least) combat against powerful foes within the legendary dwarf city. A dwarf lich, a Far Realm spider goddess, an iron-encased demilich, and a melted flesh derro warlock monstrosity all await, along with a mind-bending force - Great Cthulhu! The characters have a chance to face an avatar of Great Cthulhu in the dwarven depths in the final confrontation of the adventure to free Mount Throndor and rid Faerun of a Far Realm invasion! An Adventure of Exploration Mount Throndor is a big, sprawling complex, a dwarven city with two major strongholds, a bridge system spanning a massive underground lake, and a deep mining complex. The scale is difficult to grasp and convey. Previous examples of adventures featuring these elements have included maps - usually lots of them, great spawling maps connected at ends to make huge subterranean dungeons. It is the classic image of a D&D dungeon crawl, and the map is a key component to its visualization. However, in this adventure, the maps are handled differently. There are certain areas, ususally outside the dwarven city itself, that include maps that are suitable for use at the game table, either in theater of the mind style or grid-and-miniatures. Mount Throndor itself is presented with an abstract map, and exploring it utilizes the exploration procedure outlined in Appendix A. Characters traverse the huge subterranean system using this abstract system, and during their travels they are going to run into random encounters and sites with more interesting and complex encounters.

In the center of Lake Encarthan looms the dreaded Isle of Terror, accursed land of mystery and treachery. Hidden within the island's negative energy storms, the secret treasure city of the wizard-king Tar-Baphon has lain sealed for centuries. Now masked cultists have opened the golden city of Xin-Grafar to claim the wealth of the legendary city for the Living God Razmir. Can the PCs track the cultists through the poisoned swamps and blasted wastelands of the Isle of Terror to the City of Golden Death itself? And what forgotten dangers will oppose them as they struggle to prevent a dark faith from spreading across the world? Part 3 of the Price of Immortality trilogy.

This adventure includes large-scale battles, war-planning and the potential challenge of PCs claiming and holding dominion over territory. A King's Commission leads to danger! All communication with the barony of Twolakes Vale has ceased. King Ericall, worried about the security of his border and angered at the loss of tax revenues, has commissioned you, a delegation of powerful adventurers, to investigate. This is not a petty problem to by solved by the armies of local nobility. Indeed, the king's forces are desperately needed elsewhere. Twolakes Vale is, after all, only a small barony on the far frontier of Ericall's domain. And yet? The cloud is there, its nature and cause unknown. None have returned for the barony for weeks. Furthermore, the cloud is spreading, and vague reports of unrest and mysterious disappearances are starting to trickle in from nearby baronies. Can you discover the secret of Two Lakes Vale? TSR 9118

Your group of adventurers has come together from a successful adventure in the old ruins seeking more fame and glory. As they travel they come upon the small community of Kamortha. Recently a problem occurred when the Witch of Margrove Swamp cursed the community as she left. Now the people have developed some strange facial malady and they want a cure. Can your party of adventurers discover the secret of the plague and resolve it for the fine people of Kamortha?

The party starts this one-shot falling from the sky aboard an airship. It lands atop a dense cluster of trees, unable to fly, but not destroyed. Now it is up to them to traverse the nearby wilds in search for the parts that fell loose so they can get back to the skies and continue their journey. Unfortunately, they will have to face ogres, apes, bears, blights, and more to retrieve these missing mechanisms.

Some weeks ago, a tiny sliver of shadow crept into Yarralanya Swamp. It fed on the worms, then on the fish and snakes, growing larger over time until it threatened the lives of the swamp folk, who took up their weapons and fought back, to no avail. In order to buy time for a second attempt, the swamp folk began to steal livestock from the nearby village to satiate the beast’s hunger. After all, who but those villagers could be responsible for unleashing this threat? Soon after, a band of adventurers visiting Rishel’s Hollow find themselves tasked with a simple mission: end the theft of cattle by whatever means necessary. This adventure should run for 3-5 hours, either as a standalone one-shot or as part of an existing campaign, especially one featuring creatures from the Shadowfell or the experiments of a mage. Encounters assume a party of 4-6 level 4 characters.

"Can you solve the Labyrinth within 13 hours and get back what was stolen from you?" A 4-Hour Adventure for Tier 1 characters optimized for APL 3 taking place in the Feywild Domain of Delight, Labyrinth, where everything seems possible and nothing is what it seems. This adventure takes place when the characters have been abruptly teleported into the Feywild Domain of Delight, Labyrinth. The Kobold King has given the characters thirteen hours to solve the labyrinth, or they will lose what he stole from them forever. "It's only forever, not long at all..." Pillars of Play: Skill challenges and exploration. Minimal/optional combat. Content warning: Non-consensual theft Adventure Inspiration: Jim Henson's Labyrinth (1986)

The wizard Allustan requests the party's company on a trip to Blackwall Keep, a militia outpost on the border of a treacherous swamp. But what of the green worms and unkillable zombies plaguing the region, and what fell secret is locked in the keep's forlorn basement? "Encounter at Blackwall Keep" is the third installment of the Age of Worms Adventure Path, a complete campaign consisting of 12 adventures, several "Backdrop" articles to help Dungeon masters run the series, and a handful of poster maps of key locations. For additional aid in running this campaign, check out Dragon's monthly "Worm Food" articles, a series that provides additional materials to help players survive this campaign. Check out issue #335 of Dragon for three sample cohorts that they might want to take on. Pgs. 16-40

This short adventure can be used to give a 5th level PC an experience point boost, if they have fallen behind. As the name suggests, it takes place in a swamp, where a group of Lizardmen are terrorizing the local farms. Unbeknownst to the farmers, a far larger threat exists in the swamp…

A search for the ghostly dragon of the Deadwaters. The sage's deal is simple: The more you learn about the dragon, the richer you get. In this adventure, the bard Rondelle offers players rewards for learning all they can about a mysterious dragon that has been sighted in the area. Pgs. 22-38

Sleepyhead. The only man who can stop the amphibian horde needs a wake-up call. The party must find a missing druid an bring his captures to justice. Pgs. 8-21

Are you in need of a breeding factory that spews out torrents of mutated weretoads into your campaign world? Do your adventurers enjoy exploring slimy, wet ruins inhabited by depraved, vile creatures? The Towers of the Weretoads is a mini-dungeon you can plop down in the edges of any of the lakes/fresh water bodies in your campaign world. It's filled with treasure, danger and slime. The Towers of the Weretoads is presented in an innovative mapping style that eliminates the needs for flipping between pages as you run it. Everything you need to know about a dungeon level is right there in front of you on the same single page! This allows you, the DM, to focus on creating a dynamic, interesting and challenging dungeon experience for your players. This PDF includes a 3 level dungeon and 2 original and disgusting enemies for adventurers to fight. The randomness and non-linearity of the encounters means this adventure could be an appropriate challenge for a wide level range of adventurers. Published by Gorgzu Games

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 characters attempted to cross back through the swamp to their base of operations. Along the way, they may have got stuck in mud and probably were attacked by a variety of flying insects. They arrive just a bit too late to stop a massacre that occurred back at Crivdall -- the fort is ruined and it appears that almost everyone is dead or missing. Aleretheral, an insane half-orc druid who has mastery of vermin and insects, attacked Crivdall with his insects. He has often infiltrated Crivdall by posing as a harmless elf hermit who lives in the wood. In reality, he wants the settlers destroyed and out of his swamp.

A malicious and virulent force possesses the Vermyr Woods. The local wild-life has fled; known paths have mysteriously vanished or shifted; and locals have been found hanging dead from trees yet their eyes watch... they always watch. The hopes of the people are dwindling quickly. Believing that evil harpies have afflicted the woods, brave Captain Harkin set forth to serve them righteous justice! Even the mighty druid Algalor is nowhere to be found. Time passes and their worries compound. Why have the harpies attacked? What is the fate of Algalor and Captain Harkin? What is this mysterious evil that plagues the Vermyr woods? Who is Cartman's dad? The heroes will stumble into this mystery as they travel to Homid. They will discover the truth of the harpies as well as the fate of the heroes who safeguarded this region by delving deep into a forest labyrinth that feels alive! Will it consume them or will they be strong enough to defeat the evil at its core!

This introductory level scenario brings a new group of players into an area formerly controlled by the Tunnmaa Dynasty. This group of rulers was rich in gold and gems before collapsing. It is well known that their kings, known as Ga Mantse, were buried in underground barrows that are well hidden and protected by traps. A few days ago a group much like your own found one of these hidden tombs and attempted to investigate. Sadly for them they were not up to the task. Can your party succeed where they failed?

"The Spectre of Sanguine Isle" is an adventure included in the product "Calpurnia's Guide to Practical Traps". It's an adventure that features traps from the document. The isolated town of Cupidinum has been shaken by a senseless murder. The culprit has fled to Sanguine Isle, and it's up to the heroes to find him and bring him to justice. But the fugitive doesn't want to be caught, and he knows a thing or two about guerilla warfare. Can the heroes catch their elusive prey? And was his crime quite as straight-forward as it was made out to be?