Four doors of mystery appear in the Cage. They lead to four adventures, if a basher has the dark of them. "These aren't doors in the traditional sense, cutter, but they're portals just the same. They appear for a short time every 500 years, popping up in different parts of Sigil. Each hides a mystery that's waiting to be solved, and together they just might hold the key to a secret of the multiverse. All a body's got to do is tumble to the right keys, open the doors, and face down the Unknown." - Estavan, merchant lord Doors to the Unknown is a collection of four Planescape adventures that can be played separately or as a mini-campaign. When four doors appear in the Cage, the barmies crawl out of the shadows, and the heroes get drawn into events that could have consequences for the entire multiverse. Each door leads to a different plane and a different deadly challenge for the player characters. Together they offer a way to stop an ancient menace before it strikes again.

As the floating cities of Netheril hover peacefully in the air, the winds of intrigue boil all around them. The phaerimm continue to plot the downfall of the Netherese even as Karsus prepares for the casting of his greatest spell. Undead walk the land, driving orcs and humans before them. And somewhere below the greatest nation of Faerûn, the Tarrasque awakens from a long slumber. How the Mighty Are Fallen, is an adventure designed for use with the Netheril: Empire of magic boxed campaign setting (which is required to play this adventure). Within these pages, the final heroes of Netheril can : Gather the spell components, that Karsus requires for casting his "most wondrous" spell, the only 12th level spell ever known. He just needs a few body parts from two creatures - A gold dragon and the Tarrasque. Reuinte lost lovers after they have been separated by death. Nopheu's wife was killed in a magical explosions, and now he's finally saved enough money for her to be resurrected. Certainly a dead body couldn't pose a threat to a band of stalwart heroes?! Follow the winds of fate to wherever Tyche delivers them. Numerous side adventures allow players to take their characters to a variety of different locations. Some heroes might want to follow the trail of the missing nether scrolls, while others might want to join the resistance and fight Karsus and the other archwizards. But only the bravest hearts can take the first step... TSR 9540

Something is very wrong in Stormport: Corruption runs rampant among city officials, more and more people turn up missing every day, dark prophesies of Change convert new believers, and rumors persist of a demonic beast with a taste for human flesh that stalks the alleyways. Worse yet, spring is overdue; winter refuses to relinquish its icy grip. Only one vile force could cause such chaos: The illithids have risen up once again, ready to enslave the surface races. Now, as never before, the world needs great heroes, mighty adventurers who will challenge the illithids; dark agenda. A Darkness Gathering is the first of an adventure trilogy (continuing with Masters of Eternal Night and concluding in Dawn of the Overmind) that pits brave adventurers against the brain eating mind flayers. Dungeon Masters can run each individual adventure of the trilogy separately, or they can be linked together to form a seamless, epic-length adventure.

Once, the Tribe of Altair roamed the sands, free as the great eagle on the wind. Now, caged by an evil mage, these desert riders yearn for their lost freedom. But fate takes a hand as a noble djinn seeks to fulfill an ancient wish... In this unusual three-part scenario, players first take the roles of the men of the tribe, who stage a revolt after being enslaved in the Pit of the Laughing Efreeti and then try to battle their way to freedom. In the second part, the PCs are the women of the tribe, who must escape the evil flame mage's harem and use all their wits to win free of a strange city. Finally, the children of the tribe have to slip away from an evil temple before they can be sacrificed, which calls for them to embark on a magic carpet ride that promises to be the adventure of their lifetimes. TSR 9584

The doctor is out … of patients! An infection of mold is spreading in the city, and its haveing a mnsterous affect on the population. Its up to the party to deal with this growing threat. Pgs. 60-68

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

While you search for treasure, others search for you. A treasure vault without guards or traps - can it be true? Pgs. 16-30

You find yourself in the burning wastelands of Har'Akir - where nothing is as it seems. The desert is a powerful foe, but in Har'Akir an ancient evil is awakening and the desert will be the least of your worries. As withered hands cast off ancient shrouds, little can save you from their touch of death. TSR 9338

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

The most frightening figure ever to stalk the streets of London is on the loose in this 32-page adventure. This time, Jack takes his unique brand of terror to Boston. TSR 1103

After successfully protecting the crown in Part 1, the city council asks you to find and stop the demonic force infecting the thieves guild. Continuation from part 1 found in Polyhedron #22 Pgs. 13-20

Into the Drachensgrab Mountains! Hot on the trail of the marauding slavers, you and your fellow adventurers plunge deep into hostile hills. Spurred on by your past success, you now seek the heart of the slaver conspiracy. But hurry! Your must move quickly before the slavers recover from your previous forays and attack! This module was originally used for the official Advanced Dungeons & Dragons Tournament at Gen Con XIII and is the third of four in a series of related tournament modules. This module contains a challenging scenario, the tournament scoring system, plus nine pre-rolled, playtested tournament characters. Also included are large scale referee's maps, notes, and background information. A3 is a complete adventure in itself, but it is also a companion to A1 (Slave Pits of the Undercity), A2 (Secret of the Slavers' Stockade), and A4 (In the Dungeons of the Slave Lords). TSR 9041

"The adventure begins with the PCs lost in the streets of Sigil's Lower Ward." --from the module. The PCs are approached by a tiefling telling them about a job. The tiefling's employer wants the heroes to search for a child who is rumored to be some sort of chosen one from an ancient prophecy. Includes a map of Durkayle's Stronghold, a map of the Black Sail Tavern, a map of the Screaming Tower, and an isometric map of Zactar Cathedral.

It's only a flesh wound. This roadkill isn't as harmless as it looks. Reports abound of brigands and hobgoblins attacking travelers in the area. Though there were brigands, the attacks are the work of a Thoul (magical combination of a hobgoblin, ghoul, and troll). The Thoul is playing dead in the road to attract prey. It has been doing this successfully for a number of days now with the help of its mate, a second Thoul hiding nearby. The PCs must defeat the Thouls to keep the road safe for travelers between the local towns. Pgs. 26-27

An army has appeared from the desert wastes led by a sorcerer said to be immortal. Fearing imminent attack, the Border Kingdoms have sent assassins to slay this so called Ravager and find this terrible rumor is true. You are tasked with discovering the secret to the sorcerer's immortality, hidden amidst an ancient crypt.

HEAR YE, HERE YE! THE BLACK KNIGHT WILL HOST A TOURNAMENT CHALLENGE! The Black Knight is a mighty warrior. Even though he acts a lot like a bandit, they say he keeps his word. The Black Knight usually raids local towns, but now he is sending out invitations. He offers a tournament, a contest of honor, to all comers. But why would the Black Knight hold a contest? Maybe something more is going on. There is only one way to find out! This module is the first entry-level adventure written especially for a DUNGEON MASTER and a single player. Recommended for one fighter, cleric, dwarf, or elf of levels 1-3 (An option allows for using more characters if you wish). TSR 9387

This adventure is about a quest to save a city that disappear underneath there feet in a power play by a wizard from another plane. The previous ruling wizards are trapped in magic coins scattered nearby and help defeat the evil wizard on an inverse material plane and end with the players going into the middle of a sun to convince the ruling fire elemental to give the city back. TSR 9204

What's waiting for you at the bottom? Adventurers are more than welcome - they're nourishment! Pgs. 4-15

A walk in the woods, a trip to the zoo, a day at the circus - harmless enough, right? Wrong, as players will discover when things are not as they appear to be. Included in I13 Adventure Pack I - https://www.adventurelookup.com/adventures/i13-adventure-pack-i TSR 9202

The Village of Hommlet has grown up around a crossroads in a woodland. Once far from any important activity, it became embroiled in the struggle between gods and demons when the Temple of Elemental Evil arose but a few leagues away. Luckily of its inhabitants, the Temple and its evil hordes were destroyed a decade ago, but Hommlet still suffers from incursions of bandits and strange monsters. TSR 9026