Eternally does the Lord of Nessus scheme, and his designs are for all eternity; In the pit of Hell do the devils teem round his throne, and his reign is unchallenged; By the eight Dark Ones is he held supreme, and his name (speak it not!) is Asmodeus. - From "The Canticle of Thumis," 142:15 To some, justice is more important than glory, duty is more important than desire, and goodness is more important than life. The great paladin Klysandral was such a man. But even the sleep of death, at the end of a long lifetime spent battling evil, did not bring peace to Klysandral. During his funeral, the entire Temple of Neheod was dragged by terrible magic into the Nine Hells, along with the soul of Klysandral and scores of living mourners! What unearthly motive could be behind this tragedy? Only the bravest, strongest, and most resolute heroes will have the mettle to find the answer. Along the way, they will meet the enigmatic wizard Emirikil the Chaotic, sail aboard the fiendish ship Demonwing, and finally face the horrific minions and overwhelming terrors of Hell itself. Only the path of light can lead the bravest of the brave into perdition and safely out again. Step wisely, and walk in justice.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. Mind Flayers are working to escape justice in Sigil, and so the Mercykillers have asked the characters to step in and kill them.

When Volothamp Geddarm hires you to recover a missing key, you find yourself wrapped up in a series of murders in Lower Skullport. Can you find the killer before they find you? Part One of the Skullport Shakedown trilogy. A Two- to Four-Hour Adventure for Tier 2 Characters. Optimized For: APL 8

Sarkt is an illithid sorcerer. It was cast out of its community for its heretical studies (Sarkt was in fact, lucky to escape alive). It didn't take the cunning creature long to pick up a few thralls and find a new place to live, safe from the murderous intentions of its companions. Sarkt dwells in the subterranean ruins of an ancient shrine to Blibdoolpoolp, the crustacean-headed deity of the kuo-toas. This shrine lies on the fringe of a region controlled by kuo-toas, but since Sarkt's arrival, the fishmen avoid the area. A few unfortunate kuo-toas now serve Sarkt as thralls and maintain the illusion that the shrine serves Blibdoolpoolp. Pgs. 82-88

The players get more than they bargain for when answering a night-time call for assistance from a mutual friend. Can they escape the githyanki prison known as the Crucible and find their way home from the Astral Plane? Designed for characters of 5th to 9th level, the Crucible can be played as a standalone one shot adventure, or as the first in a four part series of connected one shots that see the party fight their way to hell and back.

The Fortress of the Yuan-Ti describes a fortress build into a cliff side and the slave village outside. The Adventure is the third of three but can easily be played by its self. The adventure revolves around the players discovering the dark plot to revive the demon Sertrous and then stopping it. The adventure describes the outside, inside, and hanging towers of the fortress. The adventure concludes in a forth extra-planer tower were you fight the boss. It also includes 4 sidetracks from portals that explain how they get the materials for the ritual. Final part of the Barrow of the Forgotten King series.

Avalanches are hardly news in Icewind Dale. The frequency to which it is occurring, however, defies logic. What is the cause of this strange phenomenon? What horrors could have unleashed such force of nature with such reckless abandon? Horror Beneath the Frost is a slasher horror adventure set in Icewind Dale, deep within the Reghed Glacier. It features yetis, mind flayers and a boneclaw! The adventure is designed to be easily dropped into: • Any homebrew campaign where avalanches occur. • Icewind Dale: Rime of the Frostmaiden campaign. • Plague of Ancients Seasonal Campaign for the Adventurers League (AL) organized play program. Inside you will find: • A slasher horror adventure optimized for five characters with an average party level (APL) of 8. • Scaling advice for three to seven 5th to 10th level characters. • A printer-friendly version of the adventure. • 4 digital maps importable to Roll20, Foundry VTT and your VTT of choice. Includes gridded, grid-less and printer friendly versions of the maps. • D&D Adventurers League compatible adventure (Dungeon Seed: This Seems Familiar | DC-POA-JL01)

This material was originally published as two separate adventures, D1: "Descent into the Depths of the Earth" and D2: "Shrine of the Kuo-Toa." Contained herein are referee notes, background information, maps, and exploration keys intended for use with the Advanced Dungeons & Dragons rules. The adventure can be used alone or as part of an extended adventure that begins with G1-3: "Against the Giants" and continues with D3: "The Vault of the Drow" and Q1: "Queen of the Demonweb Pits." TSR 9059

This adventure is written with the intent that it takes place in the subterranean world called the Underdark in the world of Forgotten Realms, although it may be placed in other settings. Within the Underdark, Cyrog's lair can be placed anywhere though it is stated to be thousands of miles east of Gravenhollow. If you are running Out of the Abyss, you may want to have your players see the vision Cyrog Lives! Hail Orcus! (OOTA, 158). Additionally, it is recommended that this adventure be used for a party of 4 to 6 players, level 9 to 12. While merely hinted at through visions in Out of the Abyss, Orcus is roaming the Underdark unchallenged with an army of mind flayers at his disposal. Cyrog, the elder brain of a mind flayer colony in the Underdark has died. The demon lord Orcus has reanimated and taken control of it. The hive of mind flayers is now bent to Orcus's will through Cyrog as he strives to make all life in the multiverse into a vast undead horde under his control. The adventurers are contacted by a patron who gives them a special item (such as brain worms) to suppress their brain waves and make it possible to infiltrate the Cyrog's Lair without immediate detection. The adventurers must defeat or otherwise subdue mind flayers and a few guards, override the elder brain's mechanical defense system, and slay Cyrog.

Recent earthquakes have unearthed a small section of a lost dwarven fortress. The dwarves are long gone, but rumors suggest they might have left treasure or weapons behind. After a journey into the Underdark, the characters find a barred iron door bearing the names of several ancient dwarven clans. Pgs. 90-95

A missing mage... A ruthless band of kidnappers... A sinister conspiracy... Night Below, the first epic campaign adventure for the AD&D game, is designed to take the player characters from 1st level to 10th level and beyond. The PCs start as beginning adventures on a routine courier mission who soon become drawn into combating a sinister plot that menaces the pleasant land of Haranshire.

A terrible and unnatural fear has come over the people of Waterdeep. In a matter of weeks, dozens of people are missing, and more disappear each night. Rumors tell of curses, phantasms, demons, and possession. In truth, these are the victims of tiny parasitic brain maggots unleashed by the illithid dragon called Brainstealer. The fate of its victims fall on your shoulders, as you discover his lair and prepare to raid it.

Side-Trek adventure When your PCs gain access to the teleport spell, their whole world changes. That simple spell opens up instantaneous, long-distance travel. No more long overland journeys or dangerous retreats through hostile territory. All it takes is clasped hands and a word from the wizard, and poof! The PCs are where they want to go. Except that it isn’t that simple, because teleport isn’t foolproof. The off-target teleports are a matter of scattering your PCs someplace else on the map and forcing them to get their bearings and make the long overland journey anyway. But this Side Trek focuses on the really intriguing column on the teleport chart: “similar area.”

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.

Encounters in the Savage Underdark is a 150-page supplement containing mini-adventures, NPCs, locations, and magic items,from eighteen of the DMsGuild's best authors.This incredible 150 page supplement features 24 amazing new Underdark adventures. Visit Annarei's Garden Encounter an insane aboleth Interact with traveling merchants Attend the Fire Fest Perform an Underdark heist and so much more....

The characters will investigate a grim mystery in the elven village of Alkai Tor, hunt for answers in a lethal swamp, and finally confront a desperate killer in the Temple of Shattered Minds itself.

Agents of the fire giants of Maerimydra, a city in the Underdark, have overtaken the drow outpost of Szith Morcane. The factions seek out adventurers to free the outpost’s leaders for questioning on the giants’ activities. Can you extricate them before it’s too late?

The Free City: a shining gem in the crown of cultured civilization. Beneath the surface of this bustling metropolis is a rot, festering in the darkness, manipulating the lives of those unaware of its presence. Now a small adventuring band from out of town may be in over their heads. Their actions in Diamond Lake have attracted the wrath of one of the city’s hidden masters. A gang of infiltrators and an enigmatic mastermind plot their destruction, and only tracing the rot to the root can stop the onslaught. "The Hall of Harsh Reflections" is the fourth 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 #336 of Dragon for five attractions to tempt your PCs to spend some of their hard-earned loot. This issue of Dragon also features an Ecology of the Spawn of Kyuss, one of the central creatures featured in this campaign. Pgs. 34-60

Great Danger Wrought in Secrecy Legendary forgemasters now serve an evil warlord and his dark purpose. Their hammers ring upon anvils dedicated to remaking a terrible weapon that was destroyed in ages long past. As the very fate of the world is being shaped, only the strongest heroes can shatter the diabolical plan. "Lord of the Iron Fortress" is a stand-alone adventure for the Dungeons & Dragons game, the seventh adventure in a series of eight designed to take players from the beginner to advanced levels of play (although no other adventures need be played to play this one). This adventure contains an additional 16 pages of content for the same price as earlier adventures. Designed to challenge 15th-level D&D heroes, it opens the perilous gateway to planar travel.

On a nameless, featureless demi-plane the Tarrasque rages across an all-encompassing nothingness. Last seen on Faerun a century ago during the cataclysm of Odobaz, the battle mage order of the Eldritch Storm sacrificed itself to banish the mighty titan to its demi-plane prison. Now a foul power emerges in the High Ice and nightmare visions of the Tarrasque trampling cities wrack the minds of the living—can your adventurers defeat the Horror Under the Mountain?