In the Anauroch desert, darkness is growing. The followers of the Vile Spore Goddess Zuggtmoy have stolen the dreams of the Bedine Seeress Deja, trapping them in an eldritch artifact. Unless her dreams are returned, the Seeress will descend into madness, and her people along with her.

More than a hundred years ago, Delbera Axebringer—a mighty warrior and dwarven leader—slew the necromancer Audalot Karexin, but spared his young apprentice Zohir. In the ensuing decades, the bitter survivor brooded and plotted her revenge. Now, descendants of the Axebringer clan are vanishing, dragged screaming into the darkness by the animated bodies of their fallen kin. The Axebringers and their hometown of Davarn need heroes to break this family curse. What mysteries lie sealed within Delbera Axebringer’s ancient abandoned fortress? And what challenges lurk along the Blighted Path winding through the Darklands beneath Golarion’s surface? Down the Blighted Path is a deluxe adventure for 5th-level characters, and includes 64 action-packed pages of exciting battles, supernatural mysteries, and monstrous foes, plus a gorgeous double-sided poster map featuring an overview of the dwarven trading post of Davarn and a miniatures-scale battlemap! The author of this adventure, Monica Marlowe, was the winner of the 2015 RPG Superstar contest, in which hundreds of unpublished authors competed or the chance to write a Pathfinder Module. In addition to her adventure, this book contains a host of new monsters and magic items designed by the contest’s runners-up. Players can expect to reach 7th level upon completion of this adventure—if they can survive its deadly haunts, Darklands horrors, and furious villains both living and undead!

After a drow girl goes missing, characters must delve into the depths of the Underdark to bring her back. As they journey through the dark, characters discover not all monsters are monstrous and webs are capable of restraining all manner of creatures; in fact, they can capture magic itself.

To travel further into the Underdark the party must cross a bridge spanning a deep chasm. But to cross, they must pay the toll, or risk another route.

The greatness of a dwarven citadel is measured by its greatness of wealth. The dwarves steadily work mines and forges to fuel the wealth needed to make their presence known throughout the realms. Unfortunately, this also makes them known to those that would seek the opportunity to steal their glory and riches. This story occurs in a place that has experienced this struggle for millennia. New threats emerge as old threats become rivals through the tides of time. This story... your story... is another chapter of this ancient struggle.

The time has come for the brave and the bold to put an end to the machinations of Maerimydra’s demonic occupiers and their fiendish fire giant ruler. This will be no mean feat; the city is a cesspit of corruption and madness. You will have help, however, as an unlikely group of allies have gathered to your side in the Underdark beneath Faerûn. Danger, glory, and redemption await those brave enough to seize it. With allies gained from denizens of the Underdark, the former drown enclave of Szith Morcane is on the precipice of being retaken. During the battle for Szith Morcane, secrets of the drow community are revealed. What will you do with this knowledge, and how will it affect the outcome of the conflict?

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?

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 Ghost Tribe of Orcs were driven from their home under Wyvern Tor by some terrible evil. They marched to Phandalin and attacked, only to be defeated. Now the heroes will go beneath Wyvern Tor to discover the terror that chased out the orcs and perhaps find the source of the orc’ssardonyx. Journey to Beneath Wyvern Tor is the third of four parts in the After Lost Mine series. It will play out the journey to the orc’s former cave settlement and then into the darkness beneath. Part IV will have the party deal with the terror from the Underdark that drove out the orcs.

Zhentish soldiers, Maerimydran drow, and Sharran cultists have forged a dark alliance to subjugate the peaceful land of Shadowdale. Elminster's tower lies in ruins, Lord Amcathra governs at the sufferance of the dale's conquerors, and the very Weave of magic in this embattled land seems to fray with each passing day. The Zhentish yoke lies heavy over Shadowdale—but the Dalesfolk are ready to fight for their freedom, if only they can find true heroes to lead the way!

The Adventurers arrive at a drow outpost in the Underdark. They must either dispose of the drow or ally with them against the invading legions of Orcus!

The final confrontation with the giant, King Snurre, and the entry of mighty adventurers into the caverns under his stronghold (DUNGEON MODULE G3, HALL OF THE FIRE GIANT KING) discovered the Dark Elves, the Drow, had instigated the giant alliance and its warfare upon mankind and its allied races. This module contains background information, a large-scale referee's map with a matching partial map for players, referee's notes, special exploration and encounter pieces, a large map detailing a cavern area, encounter and map matrix keys, and an additional section pertaining to a unique new creature for use with this module and the game as a whole. A complete setting for play of ADVANCED DUNGEONS & DRAGONS is contained herein. This module can be played alone, as the first part of a series of three modules (with SHRINE OF THE KUO-TOA, D2, and VAULT OF THE DROW, D3), or as the fourth part of a continuing series of modules which form a special progressive campaign scenario (DUNGEON MODULES G1, G2, G3, D1, D2, D3, and Q1, (QUEEN OF THE DEMONWEB PITS). TSR 9019

"The module takes place in a large cavern that is part of an extensive underground cave network. It can be used as a side-trek encounter in the Undermountain or Night Below campaign." -- from the adventure. Includes a small keyed map of the cavern.

Part 3 of the Shackled City Adventure Path "Wherein a tribe of the Sea Mother's children suffer for sparing the life of a mad prisoner they probably should have eaten." Synopsis: The adventure begins with an Umber Hulk attack in the middle of the city. The fame gained by assisting during the attack allows them to gain the notice of a representative of Davked Splintershield. The group is asked to rescue Zenith Splintershield from a Kuo-Toan temple in the Underdark. But to find it, they have to visit Crazy Jared to locate an entrance to it. Upon journeying to Crazy Jared's, they fight Hookface's offspring. After more travelling, they are able to descend into the Underdark. Once they find the Kuo-Toan temple, they must fight through many hard challenges, only to realize that Zenith is not a prisoner, but instead is a prophet. Zenith does not go willingly, and so must be captured. Pgs. 28-61

Are your player's going fishing in the Underdark? Booked a ride with the Kua Toa Travel Agency? Taking a cruise on the Darklake? Well then Journey Through the Center of the Underdark 2 - The Darklake Strikes Back is just what the Leemooggoogon ordered! Like the first Journey, The Darklake Strikes Back contains several encounters designed with Out of the Abyss traveling days in mind, but easily inserted into any 5th Edition Dungeons & Dragons Underdark setting. Unlike the first Journey, The Darklake Strikes Back has a mid sized three level dynamically defended dungeon, complete with a dragon at the bottom! This complex is right at home on the Darklake but could also readily be inserted into your Tyranny of Dragons campaign as well. Written for a party of characters levels 4-6 with notes included for adjusting encounter difficulties for lower or higher level groups Journey Through the Center of the Underdark 2 - The Darklake Strikes Back should provide 6-10 hours of gameplay excitement!

Rumors of faceless demonic creatures have been steadily rising in the Hillsfar region, and it is said that far below the surface of Faerun, nestled in the bowels of the Underdark, ancient terrors are stirring. The imperiled drow of Szith Morcane have extended an intriguing offer, but can the drow be trusted, and for how long? An eight-hour adventure for 11th-16th level characters.

Of all the inhospitable domains in the RAVENLOFT@ campaign world, Bluetspur is the cruelest and most gruesome. Nothing grows in the endless night, and lightning periodically falls like rain. The only place to escape those storms is inside the mind flayers' complex under Mt. Makab, but that is the last place where any sane person would want to go. The High Master Illithid has been hatching black plots by hatching vampiric mind flayers in his laboratories! His prodigies are horribly insane, but if he can complete his plans, he will achieve a new level of dark immortality. A pair of heroes has stolen the key to his success, but they have paid a heavy price for their bravery and are in desperate need of aid unlooked for. Meanwhile, the Lord of the Realm watches over the proceedings and plays havoc with the wits of both sides, sapping strength and will with all-powerful thoughts of darkness. A party of adventurers will need all of their skills to escape this black domain without the loss of life, power, or sanity! Enter now the perpetual twilight realm of Bluetspur, home to mind flayers, a land of relentless nightmares. There's no rest for the wicked or the good in this domain. Once caught within the borders of this desolate land, the characters must complete their mission without delay or lose their minds and become slaves of the Lord of Bluetspur. TSR 9264, from 1992

As a member of a bold party of adventurers, you and your associates have trekked far into what seems to be a whole underworld of subterranean tunnels -- arteries connecting endless caves and caverns which honeycomb the foundations of the lands beneath the sun. Your expedition has dogged the heels of the Dark Elves who caused great woe and then fled underground. This module can be played alone, as the conclusion to module D1 & D2: "Descent into the Depths of the Earth," or as the third module in a series that forms a special extended adventure (G1-G3: "Against the Giants"; D1-D2: "Descent into the Depths"; and Q1: "Queen of the Demonweb Pits"). TSR 9021

Detailed encounter, easily convertible into an adventure. Starts from investigating ambushes on the mountain pass and quickly escalated into a more twisted story about duergars, alhoons, and treasure vaults. Setting-agnostic (classic fantasy - best)

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.”