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.

From time out of mind, the standing stones known as the Circle of Cahervaniel have stood lonely vigil on a grassy hilltop. Sheepherders once moved their flocks over the hill and through the circle, sometimes resting in the cool shadows cast by the ancient stones. Everything changed when a stone finger fell, revealing a fissure in the earth. Now, dark shadows caress the circle after the sun sets. Creatures out of nightmare dance upon the hillside at night. Many swear that a unicorn of deepest ebony now hunts all upon two legs who draw near, while stunted creatures scurry in the shadows, abducting sheep from their sheds and drawing them down below ground for food. After the disappearance of a sheperd, fear grows stronger in neighboring villages. Who will brave the black hollow of the ancient Circle of Cahervaniel? Heroes of stern mettle must descend into the cavity and explore the ancient spaces existing there. Product History "The Shattered Circle" (1999), by Bruce R. Cordell, is a generic adventure for AD&D 2e. It was published in January 1999. Origins: Another Generic. After Wizards of the Coast began publishing D&D, their first year and a half of generic adventures were all classic revivals: returns to RPGA tournaments, to classic adventures, and to Dungeon scenarios. Even "A Paladin in Hell" (1998) was a return in its own way, to the demons and devils that TSR had become afraid of. Wizards was staking out new ground by reclaiming the past. "The Shattered Circle" (1999) was the first generic Wizards adventure that was simply a generic adventure, with no deeper origins and no hidden motives. Artifacts of Note. the foundingstone and the harp Euphonious are both one-off named magic items. However, it's sword Icerazor that's the most interesting. It's said to have grown from a shard of Frostrazor — a sword that would only appear ten months later in Return to White Plume Mountain (1999). There, it's listed as one of Keraptis' four implements of power, alongside Wave, Blackrazor, and Whelm — meaning that Icerazor (and this adventure) are just one step removed from White Plume Mountain itself. Monsters of Note: Chitine. It's somewhat curious, given the Greyhawk and Neverness connections, to note that the chitine debuted in MC11: "Monstrous Compendium Forgotten Realms Appendix" (1991). The spider-humanoids have generally been a Realms creature, featuring in bestiaries and histories for that setting. However, they also received a more generic "Ecology of the Chitine" in Dragon #223 (November 1995), which introduced the choldrith, or chitine priestess. This is their major adventure appearance. When asked about pronouncing their name Cordell says that he "can't be 100% sure of the original designer's pronunciation", but he prefers "KI-TEEN". About the Creators. By 1999, Cordell was one of D&D's most prolific writers. He'd previously authored many slightly related adventures, such as The Gates of Firestorm Peak(1996) and the sahuagin (1997) and illithid (1998) Monstrous Arcana adventure trilogies. This conversion guide allows DMs to run the original module with 5th Edition rules. To use this conversion guide you will need a copy of The Shattered Circle, originally available in hard-copy and now for sale in Digital format at the DMs Guild. This adventure is a generic adventure, not specifically based in any existing setting. Suggestions are given in the conversion guide to place the adventure in the Forgotten Realms.

In the city of Waterdeep rests a tavern called the Yawning Portal, named after the gaping pit in its common room. At the bottom of this crumbling shaft is a labyrinthine dungeon shunned by all but the most daring adventurers. Known as Undermountain, this dungeon is the domain of the mad wizard Halaster Blackcloak. Long has the Mad Mage dwelt in these forlorn depths, seeding his lair with monsters, traps, and mysteries—to what end is a constant source of speculation and concern. This adventure picks up where Waterdeep: Dragon Heist leaves off, taking characters of 5th level or higher all the way to 20th level should they explore the entirety of Halaster’s home. Twenty-three levels of Undermountain are detailed herein, along with the subterranean refuge of Skullport. Treasures and secrets abound, but tread with care!

Having put down a rising of giants, it was discovered that the motivating force behind their depredations was that of long-forgotten evil - the Dark Elves. Determined to seek out these creatures, a body of doughty adventurers mounted an expedition to learn the strength of the Drow and bring retribution to them (DUNGEON MODULE D1, DESCENT INTO THE DEPTHS OF THE EARTH). 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 temple complex area, encounter and map matrix keys, and an additional section pertaining to a pair of unique new creatures 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 second part of a series of three modules (with DESCENT INTO THE DEPTHS OF THE EARTH, D1, and VAULT OF THE DROW, D3), or as the fourth part of a continuing scenario (DUNGEON MODULES G1, G2, G3, D1, D2, D3, and Q1, QUEEN OF THE DEMONWEB PITS). TSR 9020, From 1978

“...when the floor trembled and the whole town shook, the people knew Mario had been found a couple of minutes later the dust settled again on the buildings and streets. Silence. The people’s wait to see who came out of the sewers, who would emerge victoriously was agonizing. The fate of the town swung on the outcome of the battle…” Extracts from The Witch Doomsday in Master Bard Blue Barry’s Tales of Silver. This adventure is designed for four to six 2nd- to 3rd level characters and is optimized for five characters. Designed to be a one-shot to play between four and six hours. A band of deep goblins settled in the sewers of Red Witch Cove and took the towns as hostages. They take what they want when they want it without regard for the people around them and their acts are bringing the doom of the town that the merchants were holding back. The package contains: -Color version. -Black and White version. -Maps and battle maps.

The Tranquil foothills of the Sword Mountains are quickly plunged into chaos, as a series of earthquakes spread their way through the region. Adding to this danger, bands of vicious, flesh-eating monstrosities have clawed out of the shattered earth, attacking travellers and local residents. Rumours of wealth and riches have drawn the adventurers to the area; little do they know that it is not gold and jewels these monsters protect, but a volatile portal into the Underdark with a disturbing secret.