Everyone who went to opening night of the Monveau Theater's newest show has gone completely insane. Can the characters uncover the shocking secrets inside the theater and find a way to end the plague of madness without losing their own minds? The Horror Within is a cosmic horror adventure for 8th-level characters. It's a one-shot that takes about 3-5 hours to complete and includes: -A maddening mystery where the characters' sanity is at risk -A thrilling battle against an Old One in the lost depths of the city -Combat cards for each monster, PC, and special treasure -High-quality digital maps for use with virtual table tops

A group of dwarves in the Hulburg region are in need of help. Strange lights have been seen at night and a deadly terror has struck their mining camp. Venture into the ancient ruins and discover the source of this terror before it's too late.

Far out in the void, an ancient city of vampires endures. Welcome to Araveshti, a city of a thousand towers floating safely in the shadow of the world, glittering with starlight, thrumming with ancient magics, and crawling with vicious immortals. Will you seek to destroy these bloodthirsty aristocrats? Or will you help them pursue their bizarre alchemical experiments in immortality? Or will you simply seek a way to escape their twisted and crumbling paradise? Within these ancient towers, adventurers will find vampire lords and servants, zealots and goliaths, as well as werewolves, mycotic zombies, victims of strange experimentation, fanatical holy knights, tragic vampire hunters in black, shipwrecked dreamers, castaway aliens, metal angels, eldritch horrors, star dragons, and (of course) the vampires' giant dragon-killing mecha suit... This is a dark sandbox. Players will explore a vast city of undead people and monsters in outer space, full of homages to classic horror and science fiction films and literature. ADVENTURE TYPE: Mid Level / Combat / Exploration / Dark Fantasy / Fantasy City / Gothic Horror DESIGN NOTES This adventure is intended for mid-level characters around Level 5-10 Players explore a large vampire city in space, encounter numerous NPCs and monsters, and engage with diverse factions to destroy, conquer, or escape from the city 40+ unique encounter locations, plus countless randomly generated locations 100+ original magic items 40+ original monsters One city map Estimated play time: 1-8 sessions (4-32 hours)

The gnome village of Clefton is built on the sides of a deep gorge, their homes built safely into the gorge walls. But for the past two nights Clefton has suffered the attacks of sightless creatures that crawl down the walls and steal away the gnomes’ loved ones. It’s up to the PCs to follow the creatures’ trail back to The Draigesgyrn Caves and put an end to their threat. As the PCs explore the unusual cave complex, they may discover the caves are the empty husk of a colossal dragon, buried many years ago beneath a landslide. In the depths of these caves they encounter the dread spirit of the dragon rider and an entrance to the Underdark. Will they seal the entrance or will they begin a new adventure deep underground? The Draigesgyrn Caves is a D&D 5th Edition adventure suitable for four to five PCs of 5th level and estimated to take 4-6 hours. The adventure could be set in any mountainous area. In the Forgotten Realms, it might be set in the Fairheight Range on the Moonshae Isles. The end of the adventure introduces an option to begin an Underdark adventure or campaign. Includes: A map of the dragon husk caves by EB Moreno Two new monsters for 5th edition – the ghoulish ooze and a grimlock shaman Four new magic items

It was supposed to be a simple job... A strange merchant offers you a simple job – pick up and deliver cargo. You have three days to get it a mere fourteen miles through the city. How hard could it be? A Simple Job is a journey through the city of Anduria, a cascading series of events that takes the heroes to explore strange locales and bargain with even stranger creatures. What secrets does the city hold, buried away for countless centuries?

The heroes get to kick some bhut. Beware of cheerful--and long-fanged--employers! While traveling along a lesser road, the PC's encounter a small merchant caravan traveling in the same direction. The merchant leader wants begs the PC's to travel with them, if only for companionship. The creatures, called Bhuts, are found in Creature Catalogue (AC9) published in 1986 by TSR. Pgs. 30-36

For the past 9 years the small town of Haren’s Watch has been plagued by a wicked fey spirit known only as Mr. Grin. Every year the creature and its fiendish little minions torment the town over the course of three nights, culminating in the kidnap and transmutation of one of the village children into a lifeless statue made entirely of coal. It is the tenth year of Haren’s Watch suffering this calamity and this year, amidst a raging blizzard, a weary party of adventurers seeks refuge in the small village... The adventure favours characters and players who enjoy roleplaying and exploration but contains additional optional encounters for players who enjoy more combat focused play.

A Heart in Mourning is a dungeon crawl and survival adventure that takes the party through the mists into the strange and dangerous Mournland, where they encounter threats both environmental and living. The party has been given a map with the task of retrieving the Steelheart from Ash Tower, where the Provost’s research has led them under direction by Guild Handler Lhara. Their destination lies in the middle of a manifest zone of Shavarath. Once there, the party will have to survive a tower climb filled with fiends, demons, and more in order to retrieve the Steelheart, a powerful artifact guarded by a powerful guardian.

The Nexus spore is an intriguing Underdark adventure that can be sewn into any subterranean setting. This one-shot production was designed with long campaigns in mind, for when you want to break up the narrative to keep things fresh and interesting. This short adventure is ideal for players of level 5-7, although, much like the length of the adventure, it is easy to adjust. The adventure fits well into a single long session, or 2-3 short sessions. It comes complete with maps, stat blocks, boxed descriptions and a rare magic item.

Tall tales of hidden riches are common in the pirate-infested taverns of the Shackles, but when Captain Varossa Lanteri claims to know the location of the secret treasure hoard of legendary Captain Jemma Redclaw, it seems she may be telling the truth. Captain Lanteri hires the PCs on as crew to help her assemble the magic key that will open the door to Redclaw’s treasure... and the ancient cyclops stronghold in which it’s hidden! Can the PCs survive long enough to claim their share of the lost loot, or will their enemies—or their allies—send them to a watery grave?

Arnyn, a merfolk mercenary, has been hired to clean out the sewers below a thriving port city. Unfortunately, she jumped at the payday before truly understanding what she was being asked to do. Now she's looking for someone to take over her contract.

While lightning may strike anywhere, there is but a single Temple of Pure Lightning. This temple could be located just about anywhere – out in the middle of an expansive dungeon or even hidden beneath the streets of a bustling city. Regardless, this temple is not for the faint of heart. Within these walls are floors charged with lightning, ancient powerful weaponry, a vast series of winding powered minecarts, and rooms that are filled with eternal storm clouds. Just as dangerous are the aetherspawn that have been drawn to this place of great power and now see it as a home that will not be taken from them by the likes of a few mere adventurers.

This setting was used in the F series and was used as an area for multiple adventure opportunities as a separate crossing of the Border Mountains. This mountain area has several travel sections to get from the civilized area to the frontier. With a multitude of side adventures this area helps mid-level adventurers increase their experience point base. In the Filbar campaign it was commonly used to get from Havendale to Arcanum College and Cordicstown.

Adventure awaits both AD&D & 5E D&D players looking to take on the challenges of a Steampunk style setting! Using Gary Gygax's notes from the original AD&D DMG under 'Sixguns & Sorcery' and incorperating them into the setting, this introductory gazetteer and adventure will give players the opportunity to use the Nameless Realms (Roslof Keep & Taux) as the backdrop in a later age, The Gun Kingdoms. Secure a ship, find a crew, and take on the xenophobic and apocalypic setting as you try to deliver a spy back to the government she stole from. Will your players become part of the 'greater good' of the new world government, or will they become its opposition, striving to help the dying race of the Enlightened? Only time will tell. This adventure is formatted to both 1E & 5E gaming rules.

Long hidden away in remote vaults and guarded by powerful wards, the ancient Seven Swords of Sin have been stolen and brought together again for a terrible cause. Seven Swords of Sin is a lethal adventure that pits players against a vile enchantress, Tirana, in a trap-laden and monster-guarded dungeon. Only the brave (and perhaps foolish) can survive Tirana's lair and rescue the fabled Seven Swords of Sin from her heinous plot to unlock their deadly powers.

Dead from Above is intended for use with four to six player characters of levels 6 to 8. It will likely take two game sessions to complete. The adventure is set in (and above) a hilly region at the outskirts of civilization, presumably one near the base of a mountain chain. With a little work, the GM can place Dead from Above wherever he or she desires in the campaign world.

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

You are hired by a merchant to protect a rare item, a crystal crown, for one night against the attempts of the city's thieves guild. The arrogant guildmaster has informed the merchant that he will steal the crown and he cannot be stopped. Continues in Part 2 in Polyhedron #23 Pgs. 13-20

After undead start appearing near the local town of Angstadt, the Burgomaster and Father become worried. What could be causing these foul creatures to rise? After conducting research, the clergy discover that the throne room of a celestial avatar is located only a few days away from the town. Perhaps this holy site could hold a relic capable of turning the undead?

Just off the northern coast of Chult churns the waters of the Cauldron, a single volcano with a terrible history. Legends from the jungle lands say that it vomits forth lava, stone, and monsters if the peninsula is threatened - and yet the recent events did not set if off. So why is it threatening to explode now? Part Three of the Broken Chains Series.