The Underdark is a subterranean wonderland, a vast and twisted labyrinth where fear reigns. It is the home of horrific monsters that have never seen the light of day. It is here that the dark elf Gromph Baenre, Archmage of Menzoberranzan, casts a foul spell meant to ignite a magical energy that suffuses the Underdark and tears open portals to the demonic Abyss. What steps through surprises even him, and from that moment on, the insanity that pervades the Underdark escalates and threatens to shake the Forgotten Realms to its foundations. Stop the madness before it consumes you! Note for DMs: This adventure is not for the faint of hearted, to run or to play. The module starts with 10 NPCs traveling with the party through the grueling Underdark. This number can grow. The encounters within the book are often incredibly deadly for the characters that would be going through it. This is because the module expects them to run or talk their way through the events, or, in some cases, the module expects them to lose. If your players aren't the kind of party to run, talk, or surrender, do not get this adventure. The module almost requires that you use milestone leveling because the experience provided does not commonly get players to the levels they should be once they get to certain milestones in the story (7th when they leave the underdark, 15th when they face the demon lords.) Good luck and happy questing.

Stepping through a door can mean a grand adventure - or a horrifying death. The shortest distance between two points is not always a straight line. A number of magic towers connected by failing teleportation magic. Abandoned in ages past, other creatures now make the towers their homes and provide challenges to parties of varying levels. Pgs. 34-42

Hidden in the remote southern range of the World’s Edge Mountains lies a mysterious necropolis known in legend as the Tomb of the Iron Medusa. When the last heir of the dungeon’s long-dead noble builders hires the PCs to explore the forlorn and deadly site in search of evidence that may clear his family name, the intrepid heroes soon find themselves in over their heads. For the Tomb of the Iron Medusa does not give up its secrets lightly, and the dangerous truths that lie within its ancient, trap-laden crypts may have been hidden for very good reasons indeed.

SIGIL'S BEEN AT PEACE FOR OVER 600 YEARS. ALL GOOD THINGS COME TO AN END. Six centuries ago, events surrounding the Great Upheaval imposed an uneasy peace in the City of Doors. Since that time, the 15 factions have quietly conducted their philosophical battle for the hearts and minds of all Cagers - and always stopped short of all-out war. But now tensions are flaring, tempers are rising, and the Cage is about to explode into conflict! Faction War is a 128-page adventure that tracks the war from its nefarious origins through its bitter battles to its ultimate resolution and beyond - and puts the future of Sigil in the hands of the player characters. This book reveals secrets, unravels musteries, brings long-simmering plots to ahead, and marks the beginning of a new era for the City of Doors. It also features the following: - New details on Sigil's wards, personalities, and politics - Adventures that draw the player characters into the heart of the struggle and toward the secrets surrounding the war's beginning and ultimate end - Extensive notes on the aftermath of the conflict - A detailed Timeline of the war, including additional events that the DM may use expand to the adventure Faction War builds on story elements first explored in the PLANESCAPE accessories In the Cage, Factol's Manifesto, and Uncaged: Faces of Sigil. Familiarity with those products is recommended but not required. TSR 2629

The yuan-ti anathema, Hessatali, calls out to his yuan-ti faithful from his prison in the Abyss. His network of vipers has uncovered the ruins of ancient Ss’tatha’lass and the Fane of Hessatali, a fountain of pure venom that will return the demi-god to life. Above the buried ruins of Ss’tatha’lass, yuan-ti agents have moved to control the politics of Scornubel. The characters fall into a complex yuan-ti plot that spans the breadth of the realm, pits the heroes against the forces of the Abyss, and explores the culture of the yuan-ti.

“Den of the Destroyer” is the sequel to “The Lost Mines of Karak,” continuing the unfolding story of the Scales of War adventure path. In this adventure, the PCs are called back to Brindol by a surprising summons. There they learn that a platinum sword they had collected back in "Rescue at Rivenroar" is no mundane item - the blade is sentient! The blade charges the PCs to undertake a dangerous mission to an abandoned githzerai fortress in order to perform a ritual to awaken the blade's true form. Along the way, they must deal with bounty hunters hired by an old enemy (from "Shadow Rifts of Umbraforge"), and confront a vile gang of gnolls terrorizing Elsir Vale. Pgs. 14-54

What is the Lost Lands? The Lost Lands is the home campaign world of Necromancer Game's and Frog God Game's own Bill Webb. This campaign has been continuously running since 1977. Many of the adventures published by Necromancer Games and Frog God Games are directly inspired by this campaign. They have evolved over the decades, and more material continues to flow from it as the dice keep rolling. Sages and wizards of legend speak of the Lost Lands—many of the players who have lived and died in Bill's campaign over the years now have a place in history (in the books). Frac Cher the dwarf, Flail the Great, Bannor the Paladin, Speigle the Mage, and Helman the Halfling are well known to the fans of Bill's work. This is the game world, and these are the adventures in which the players of these famous characters lived and died. Hundreds of players over the past 35 years have experienced the thrills and terrors of this world. The Sword of Air is the centerpiece of the Lost Lands. Currently, this epic tome consists of several parts: 1. The Hel’s Temple Dungeon—kind of like Tomb of Horrors on crack. This six-level, trap-and-puzzle infested dungeon formed the basis of Bill's game through his high school and college years. Clark Peterson’s very own Bannor the Paladin spent several real life months in the place, and, sadly, finished the objective. This is where the fragments of the fabled Sword of Air can be found…perhaps. 2. The Wilderness of the Lost Lands extending to the humanoid-infested Deepfells Mountains and providing detail about the nearby Wizard’s Wall. This so-called “wall” was raised by the archmages Margon and Alycthron harnessing the Spirit of the Stoneheart Mountains to raise the land itself, creating a massive escarpment to block invaders from the Haunted Steppes. These archmages are actual player characters from the early 1980s who live on in the legends of the Lost Lands. Over 70 unique encounter areas are detailed, and each one is a mini-adventure in itself. New wilderness areas may be added based on bonus goals described below! 3. The Ruined City of Tsen. Legend has it the city was destroyed by a falling meteor. This place forms an aboveground dungeon area the size of a city, with over 100 detailed encounter areas. It’s a very dark place…even at noon. 4. The Wizard’s Feud—This campaign-style adventure pits the players in a long-running series of intrigues and battles between two archmages. Which side will they take? Their actions all play into the overall quest, and could well determine which side wins. Law and Chaos are not always what they seem, and if the wrong decisions are made, the entire ordeal could fail. Remember, one of the wizards WANTS Tsathogga to win. 5. New monsters, new demons, new spells, and new rules for various aspects of play. 6. The Tower of Bells. This dungeon is the result of the workshop Bill ran at PaizoCon 2013, where the participants assisted him in building an old-school dungeon. Visit the tower and discover the secrets of the “artist” within. Beware: those entering may never come out!

The Amulet of a Demon Prince In a few days, the rising blood moon will reveal the resting-place of the soul amulet of a forgotten demon prince. A dark lord seeks the amulet, and if he finds it ultimate power is within his grasp. Someone must stop him and his diabolical scheme before evil is unleashed! But for the heroes to beat the dark lord to his prize, they must travel through time and conquer demonic foes! A Battle Throughout Time Chaos Rising is a classic dungeon exploration adventure by Jim Collura, it details an ancient and abandoned dwarven citadel where the demon's amulet is hidden and provides unique encounters allowing the players to travel back in time to shape the very future itself! Chaos Rising supports monsters found in the Tome of Horrors. Also available for S&W and 5e.

The Tale of The Haunted Ravine is a Hex Crawl Adventure of Exploration that can be used for any game system but was designed for use with D&D 5e. A Hex crawl map and random roll tables are used to create surprising encounters and mysteries for your players to interact with. Wild necrotic magic, magical mutations, undead, lost souls, and demons all cloaked in a fog fog-choked landscape; forsaken by the gods and scarred by the battle fought here long ago. Will your adventurers survive and escape the Haunted Ravine? Or will they join the legions of cursed souls imprisoned in this corrupted land?

Stirrings of an ageless war between Law and Chaos are drawing you into an epic adventure! A Struggle More Savage than Good vs. Evil Imagine a time before the words Good and Evil had meaning, a day when the world was young. Discover an ancient conflict that predates the stars. It was in these days that Law and Chaos forged worlds out of nothingness; their war began while the cosmos was yet unfinished. The Rod of Seven Parts defines epic role-playing. The reappearance of the Rod has awakened the powers of Chaos, and their queen seeks to turn the whole world into a battleground. Bold heroes must undertake the enormous task of seeking out and assembling the pieces of the Rod, but even its power cannot stand alone. Ages ago, primal forces of Law stood fast against Chaos; now their champions must once more confront the Queen of Chaos and her foul spyder-fiends, lest the flame of civilization be extinguished. Follow the quest for the capricious Rod as it leads characters on a journey of high fantasy. The Rod of Seven Parts is designed for four to six heroes and heroines of levels 10 to 12. This boxed set includes: Initiation to Power, a 96-page book of grand adventure playable in any AD&D world, including original campaigns; The War Against Chaos, a 64-page book of world-crossing adventures pitting PCs toe to toe against the minions of Chaos; Might and Menace, a 32-page book detailing the mysterious powers of the Rod of Seven Parts: how it affects both its enemies and its friends; Monsters, a 16-page book of new villains, new monsters, and even a new race! 6 two-sided reference cards; 6 full-color poster maps portraying the key locations heroes can visit. Read about this ancient artifact in the epic novel The Rod of Seven Parts by best-selling author Douglas Niles! TSR 1145

The adventures in Dalentown continue in The Darkness Beneath Dalentown. Workers in the town’s sewers have stumbled upon the long abandoned halls of the dwarves that once settled beneath this region. What they’ve found is a haunted library. What they’ve woken is something far more sinister! The Darkness Beneath Dalentown features hordes of oozes, undead, and demons festering for years in an ancient dwarven mining stronghold. Now, they are slowly working their way to the surface, and the folk of Dalentown are in dire peril!

In the village of Elventree, near the oppressive city of Hillsfar, a recent string of strange occurrences has the locals on edge. The factions have gathered here on the borders of the forest of Cormanthor to determine what’s happening. Are these the machinations of Hillsfar, or something more?

The ancient world of Harth is dying, but you’re going to die even sooner if you can’t escape from Frostwyck. You’re lost in a frozen forest of deadly predators and mysterious recluses. Your only refuge is the tiny village of Frostwyck, where metal is rare and kindness is rarer. And there are worse things in the shadows than mere bloodthirsty beasts. Witches haunt the groves of the north. Most keep to themselves, content to guard their secrets and powers. But one torments them all. Dama Zhadna has cursed the village so that none can escape. And now you’re trapped here. You’re going to die here... ...unless you can escape from the Witches of Frostwyck. Just a few things players can do: - Escape from a prison barge - Free demon souls from a giant spider-house - Find a charming witch-lord hiding with his pet dragon - Evade a merciless warrior zealot who is hunting them - Discover the ancient secrets of the Elder Fey - Collect the "cunning tools" created by the hedge witches - Collect the eldritch weapons crafted by the ancient elves - Save a little girl made of snow Intense Factions! Will you help the Temple of Virune to eradicate the last of the witches? Will you help the witch-lords retake power over the north? Will you help the Gray Sisters protect the village from the dangers of the forest? Or will you venture underground and help the Elder Fey to escape their prison and take their revenge? Four New Mentors! While in Frostwyck, players can meet many skilled NPCs who might be willing to train a worthy adventurer. If you can complete 3 days of training, you can learn one of 16 skills from either a Hunter, a Fighter, a Priest, or a Witch. New PC Background: The Vulgoth Hedge Witch! In addition to some unusual medicinal gear, select one of 6 creatures of the northern forest as your familiars, as well as one of 6 "cunning" items that you enchanted (and might explode in your face!).

Iggwilv. Orcus. Maleanthet. Obox-Ob. Charon. These names are among the most notorious in the multiverse, appellations belonging to some of the most dangerous and powerful creatures on the lower planes. Heroes from countless worlds have raised their arms against these immortal foes and, in most cases, these heroes have perished to their soul-blasting, life-ending might. Their lairs are notorious as they are: the River Styx, beautiful but deadly Shendilavri, the Gray Wastes of Hades, frozen Thanatos, and mind-numbing Zionyn. Simply entering one of these scions of evil is akin to suicide. Yet now, as the Prince of Demons begins the final rituals to bring the savage tide to the Material Plane, heroes must approach these immortal villains not as enemies, but as allies. "Enemies of My Enemy" is the eleventh chapter in the Savage Tide 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 on the campaign. Issue #358 of Dragon magazine features a map of the River Styx and advice for those who would use this notorious river as a route in exploring the lower planes. The time draws near for the final assault on Gaping Maw, but first the PCs must recruit allies from the depths of the Abyss to the eladrin Court of Stars. yet will this unlikely alliance of demons and eladrins be enough to stop the Prince of Demons? Pgs. 40-85

Centuries past, Lady Ilse ascended to scion of House Liis by trading the archdevil Mammon what he wanted most: her immortal soul – and a diabolical betrothal. The triumph proved hollow, for every year on the eve of her fell covenant, she was beset by visions of Mammon and her foul promise. Seeking to save herself, she was buried alive, swaddled in the holy symbols of a dozen divergent faiths. This desperate ploy held Mammon at bay for centuries…but a devil can afford to wait a very long time. After hundreds of years, the last of the holy wards has fallen. The devil has come to collect his due. Tonight a storm crashes against the ancient manor house and forgotten spirits rise from the muck and mire. The fallen belfry tolls once more, announcing the hellish fete. As the adventurers arrive to explore the Black Manse, Mammon calls for his winsome bride. He will leave with a soul at the end of the night. The only question is: Whose?

Ruling uncontested in his Abyssal layer of the Gaping Maw for eons, Demogorgon's reign as first among demon lords may be coming to an end. The storm clouds gather as his inviolate sanctum is about to be breached by an unlikely alliance from across the planes. Despite its combined strength, this invasion offers no guarantees of success. For the alliance faces no house of straw, but rather the entrenched hordes and reinforced ramparts of the home of the Prince of Demons. "Prince of Demons" is the final chapter in the Savage Tide 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. The time has come to challenge the Prince of Demons! An army of demons and eladrins stands ready to mount an assault on his Abyssal realm of Gaping Maw, which should give your players the distraction they need to prevent Demogorgon from activating the savage tide and driving a world insane. Pgs. 60-99

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.

When a series of grisly murders and raids on farms and fishing boats come to light, accompanied by a strange fog, the people of Elmwood need heroes to investigate and stop the attacks. There is hardly anyone in the Moonsea who’s life hasn’t been touched by one of the tragedies over the past years, and these attacks may have deeper causes than anyone knows. Part of the Elmwood Adventures Series

In the aftermath of AD&D Second Edition's "Return to the Tomb of Horrors," the demilich Acererak was thought destroyed. In truth, his spirit lingered and now after eons he schemes once more to achieve divinity. The characters must travel to three extraplanar dungeons, in addition to the remains of the original Tomb, in order to stop this from coming to pass.

East of Beregost, nestled in the outskirts of the Wood of Sharp Teeth, Durlag’s Tower has intrigued and yet stymied adventurers for decades. Stuffed full of mechanical traps and arcane wards, and rumored to be inhabited by fiends, very few have managed to extract any REAL treasure from the former home of Durlag Trollkiller. However, a powerful item in the ancient fight against the giants is said to be housed there, and the cloud giant Baron Rajiram has committed significant resources toward recovering it. After a pleasant tea in her garden, SEER calls upon you to beat him there and put a stop to his efforts! Continued in Durlag's Tomb.