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Cover of The Sinister Spire
The Sinister Spire
3.5 Edition
Level 5
63 pages
0

The waters of a sunless sea meet a pebble-strewn shore, beyond which opens a wide Underdark vista shimmering with pale cave-light. Titanic columns as big as castles march miles into the misted distance. The wide, steeply sloping base of the nearest colossal column is carved with streets, walls, and elaborate structures, many with gaping, empty windows. A few glimmer with faint illumination. Are you brave enough to explore the spire-city and face the terrors that lurk within? Part 2 of the Barrow of the Forgotten King series. Followed by Fortress of the Yuan-ti.

Cover of DDEX03-16 Assault on Maerimydra
DDEX03-16 Assault on Maerimydra
5th Edition
Levels 11–16
83 pages
0

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?

Cover of DDEX03-03 The Occupation of Szith Morcane
DDEX03-03 The Occupation of Szith Morcane
5th Edition
Levels 5–10
35 pages
0

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?

Cover of Dark Heart of Mithrendain
Dark Heart of Mithrendain
4th Edition
Level 12
25 pages
0

When the PCs stumble into the Feywild, they find themselves in the middle of Mithrendain— a glorious eladrin city of grace and beauty. But as the heroes find themselves the target of mysterious attacks, they begin to discover that something rotten lurks in the city’s heart. Sunlight bathes the soaring towers of the eladrin city of Mithrendain. Gentle breezes swirl through wooded parks and along well-kept streets, and in the ancient settlement whos golden hues have seen it named the Autumn City, thousands live in peace and prosperity. For centuries, the fomorian chasms deep beneath the city have stood silent below the great magical seals that closed them in the wanting days of the eladrin empire. Over long years, the folk of Mithrendain have forgotten the dark threats of old, becoming complacent in their tranquility. And so none suspect that corruption lurks at the heart of the city, spreading out from the shadows to taint all it touches. Pgs. 104-128

Cover of Mines of Memory
Mines of Memory
5th Edition
Levels 1–3
8 pages
0

A strange journey through a living cavern. A request for help to rescue a mining crew leads a group of adventurers into a cave that has seemingly come to life, gripped by a melancholy wave of sadness and memory. In dark caverns where mushrooms walk, vines dance, walls watch, and stones speak, will your band of adventurers become heroes? Or will they be lost within the Mines of Memory? Mines of Memory is a short, 2-3 hour adventure for characters of levels 1-3. It is a delve into a cavern system that has become a Psychic Resonance environment, awakening the caves themselves. PCs will enter to rescue the miners, find the source of the mine’s awakening, and bring peace to a noble creature trapped in its own nightmare.

Cover of Sekarvu's Lair
Sekarvu's Lair
3.5 Edition
5 pages
0

Sekarvu is a typical beholder. It spent much of its youth exploring underground realms and killing everything it found. One day, it came upon a large cavern filled with violet fungi. At the edge of the cavern, it found a small band of adventurers who had all but succumbed to the toxins of the fungi's tendrils. They offered little resistance to Sekarvu as it approached and began to feed on their still-writhing bodies. With its first bite, the beholder's life changed forever. Pgs. 52-55

Cover of Legends of the Hero Kings
Legends of the Hero Kings
AD&D
Any Level
160 pages
0

Far in the future, bards sing tales of kings and conquerors from ages past - but from your present. The Hero-Kings of legend are your player characters from your campaign, who even now shape the course of Cerilian history. More than simply an adventure collection, this 160-page book enables you, the Dungeon Master, to turn ordinary domain actions into oppurtunites for heroic exploits. Each of the eleven "legends" set forth here is based on a different random event from the BIRTHRIGHT Rulebook. Don't allow a mere die roll to decide the outcome of a blood challenge, rebellion, intrigue, or magical event - make the PCs forge their own destinies by confronting a madman who is "Blood Hungry," wresting the "Fang of Kriesha" from its evil wielder's grasp, thwarting a rival regent's "Double Dealing," and saving all of Cerilia from "The Gift of Azrai." These adventures are suitable for PCs of all levels and classes - wheter regents, scions, or commoners - and can take place wherever you campaign is set. This book also includes an appendix that offers advice for running different types of BIRTHRIGHT campaigns and creating your own adventures fit for a king. TSR 3125

Cover of Operation Unfathomable
Operation Unfathomable
OSR
Level 1
108 pages
0

Part megadungeon, part underground expedition, Operation Unfathomable serves as both a one-shot adventure and a campaign framework. PCs are (optionally) drafted at swordpoint to recover the Nul Rod, a priceless artifact that was recently lost in a local prince's foolhardy attempt to destroy the Chaos Gods of the Underworld. The PCs have been drafted as an expendable set of pawns to venture into the vast and bewildering Underworld and retrieve the Nul Rod. With the Underworld's innumerable beasties being on high alert after the prince's expedition, the PCs must sneak through the incredibly dangerous Underworld. Fighting is not as important as stealth, fast-talking, and running away rapidly. This is the expansion from Sholtis's original Operation Unfathomable, released in Knockspell #5 (2011).

Cover of Journey Through the Center of the Underdark 2 - The Darklake Strikes Back
Journey Through the Center of the Underdark 2 - The Darklake Strikes Back
5th Edition
Levels 4–6
27 pages
0

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!

Cover of The Vault of Larin Karr
The Vault of Larin Karr
3.5 Edition
Levels 4–9
113 pages
1

Hunt for a Legendary Treasure! Deep beneath a peaceful valley lies the vault of the legendary drow adventurer Larin Karr. Rumor has it Larin Karr has gone, but his vast treasure acquired from years of plundering hordes in the Underdark still remains. Can you find and loot the impenetrable vault? The Vault of Larin Karr details Quail Valley, its residents and monsters, and the twisting tunnels of the Underdark that stretch beneath it. The Vault of Larin Karr takes PCs from 4th to 9th level, during which time they fight dragons, find a missing statue for a band of renegade elves, save the village of Pembrose from scheming hobgoblins, and explore the Underdark and its many dungeons - including the legendary Vault itself! Contains new monsters and magic items! 2003 ENnie Award Silver Winner: Best Adventure

Cover of The Lightless Depths
The Lightless Depths
3.5 Edition
Levels 11–13
39 pages
0

Deep beneath the Isle of Dread, in a place forgotten by the world of light, an ancient, unfathomable evil festers. Within the desiccated ruin known as Golsimorga, the debased kopru servants of Demogorgon work foul rites, steeping immature shadow pearls in pits of liquid insanity. None from the world above have yet fathomed what terrors lurk beneath the Isle of Dread, nor what mad scheme roils to profane life deep within the city's gangrenous corpse. "The Lightless Depths" is the sixth chapter of the Savage Tides Adventure Path, a complete campaign consisting of 12 adventures appearing in Dungeon magazine. For additional aid in running this campaign, check out Dragon magazine's monthly "Savage Tidings" articles, a series that helps players and DMs prepare for and expand upon the campaign. Issue #353 of Dragon features ways to improve the PCs' vessel, the Sea Wyvern, as they take their adventures back to the seas. When the PCs journey deep under the Isle of Dread to find the source of the shadow pearls, they discover horrors beyond imagining in a haunted underground city perched on sanity's razored edge. Pgs. 28-66

Cover of DC-POA-JL01 Horror Beneath the Frost
DC-POA-JL01 Horror Beneath the Frost
5th Edition
Levels 5–10
25 pages
0

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)

Cover of The Draigesgyrn Caves
The Draigesgyrn Caves
5th Edition
Level 5
12 pages
0

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

Cover of CCC-GAD02-01 The Monster Within
CCC-GAD02-01 The Monster Within
5th Edition
Levels 1–4
39 pages
0

A mind flayer has called for a massive conference of monsters in the Underdark beneath Hillsfar. Trolls, umber hulks, demons, and more have answered the illithid's call. To infiltrate this gruesome menagerie, you must embrace the monster within yourself.

Cover of Caves of Menace
Caves of Menace
4th Edition
Level 15
6 pages
0

A band of evil fey, led by a corrupt bralani, has raided an eladrin city and kidnapped several respected elders. The fomorian king claims the rogues don’t act on his behalf, but the eladrin city threatens the fomorians all the same. To prevent war, the PCs travel through the Underdark of the Feywild—a wondrous place filled with the beautiful and the horrifying—in search of the evil fey and their captives. Pgs. 96-101

Cover of Whims of the Heart
Whims of the Heart
5th Edition
Levels 5–10
18 pages
0

A Beholder Love Story A dwarven mineshaft has become the new home of the heartbroken beholder Sindryl. Discover who could be wicked enough to separate Sindryl from his love Prix'am, put a stop to their plot, and restore Prix'am's missing heart. A 3-6 hour Dungeons & Dragons 5th Edition adventure for Tier 2 characters. This adventure includes: 2 New Monsters (including 1 New Beholder!), 3 New Magic Items, New NPCs, a Minecart Skill Challenge, Romantic Random Encounters for the Underdark!

Cover of City of the Spider Queen
City of the Spider Queen
3rd Edition
Level 10
186 pages
0

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.

Cover of Doom of the Dragon Grafter
Doom of the Dragon Grafter
Draw Steel
Levels 9–10
26 pages
0

Explore political intrigue, gene splicing, and a thrilling battle for survival in the Timescape's World Below in DOOM of the DRAGON GRAFTER, a 9th to 10th-level adventure for Draw Steel! You and everyone you know has a story of the dragon who ruined your life. You've lost so much and wondered why it had to be this way. Recently you learned that all these dragons that wreaked havoc on Orden were intentionally created to do so, all as an experiment run by a voiceless talker known as Lord Pulposa. You don't know why he did this, or how you're going to break into his lab. What you do know that you're going down into the World Below after him to make sure his schemes will never hurt anyone again. You are the Doom of the Dragon Grafter. Features: - Over 25 pages of an adventure written by the author of The Workshop Watches and The Fall of Blackbottom (that's me!) - 23 Victories worth of encounters - Lord Pulposa, a level 9 Solo Monster designed by Scott Bullock, guaranteed to terrorize your friends and enemies - Battle Maps & Positioning Maps for most combat encounters - Some Draconian fiction thrown in there for good measure - Shared under a CC-BY Sharealike so you can do whatever you want with it - A Goblin named Spanky

Cover of DDEX03-04 It's All in the Blood
DDEX03-04 It's All in the Blood
5th Edition
Levels 11–16
56 pages
0

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.

Cover of Imperial Ghoul Outpost
Imperial Ghoul Outpost
5th Edition
Level 10
4 pages
0

"Imperial Ghoul Outpost" is an iron ghoul lair suitable for four or five 10th-level characters. This adventure can be completed in a single session. When a clan of duergar prospectors unearthed caverns not on the their maps, they were particularly excited about a strange new iron orc they found there. not long after mining began, undead horrors emerged to attack the dwarves. Only one duergar escaped, his mind shattered by the experience. The Ghoul Imperium continues to explore the area, and it has its own plans for the newly discovered one.