The entity known as Oreiax is a gruesome, stunted monstrosity born of ancient death. Rescued from an eternity of petrification by Doresain the Ghoul King, Oreiax immediately pledged itself to the Ghoul King's service, and thus indirectly, into Orcus's service. Oreiax, born of stone and death, seeks to glorify Doresain by petrifying the world. Pgs. 112-119

Rising from the surface of a massive lake, an ancient ziggurat travels through time for purposes unknown. It’s up to the characters to enter this strange relic and discover what dark threat the structure poses. The Ziggurat Beyond Time contains advice for customizing the adventure for your own campaign. It also contains an artifact, the Deluvian Hourglass, that has time-related properties and wishes to witness the end of the world. Pgs. 23-55

A cadre of githyanki has come to the world in search of rich plunder and soft targets. It has set up a base in the lower levels of an abandoned fortress ruin. A caravan of travelers spotted a githyanki while it hunted for food. Rumors of an invading army from the Astral Sea quickly spread through nearby towns, and the PCs have arrived to investigate. Pgs. 84-89

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.

The necromancer Tal Lorvas has unearthed an underground tomb that dates back to the height of the ancient tiefling empire. Lorvas has been terrorizing the surrounding lands with his vile experiments, and now he hopes to find a ring, hidden in the tomb, that is tied to a ritual he wants to perform by the rise of the next full moon. The PCs must enter the tomb of Empress Nemeia, deal with the servants of the necromancer, and confront Tal Lorvas before he can claim the ancient relic and move one step closer to ultimate power over the undead. Pgs. 36-41

"Gnolls have captured the heroes! After stripping the characters of all equipment except their armor and clothing, the gnolls drag them to an expansive briar maze known as the Twisted Thickets and set them loose. Then, armed to the teeth, the gnolls hunt down their prey. The characters must survive the hunt and outwit their pursuers. After dealing with the gnoll hunters, the heroes can try to reclaim their lost equipment and exact revenge on the tribe, which lairs in the caves beneath Dead Gnoll’s Eye Socket."

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

Orcus, the Demon Prince of Undeath, craves the power of the Raven Queen and mastery of death's domain. The key to his ascension and the secret to his destruction lies buried in the heart of the Abyss. As heroes chase Orcus into the abyssal depths, evil opposed them at every turn, and each victory brings them closer to their final fate. Concluded the epic series of adventures and the entire story line begun in Keep on the Shadowfell.

An agent of the King’s Dark Lanterns has stolen a cache of gold from the Brelish exchequer. Hunt him down, retrieve the gold, and thwart whatever else the rogue agent is plotting. Pgs. 28-65

From time immemorial, the rulers of the mortal world have been counseled and tempted by capricious primordial spirits who rule over the elements. The greatest and most sinister of these was a half-kraken medusa known as the Maelstrom Queen, who sought to supplant the mortal races with her own line of immortal tentacled monstrosities. On the verge of her ultimate triumph, when the leviathans at her command rose from the depths, a legendary assassin murdered the Maelstrom Queen in her half-submerged palace with her own weapon. But the primordial mistress refused to let something as trifling as death put an end to her designs. Every 13 years, she regenerates enough mystic power to rise again, and the world’s greatest heroes are sent to murder the Maelstrom Queen once more.

As the story goes, worshipers of Bahamut and worshipers of Gruumsh spent years warring. As the dead piled up, a Bahamut faithful crafted a weapon of devastating power. Most of the inventor’s peers balked at its use, but some felt it was justified. Those few who used the weapon were twisted into mad, dark beings by its corrupting power. The rest of Bahamut’s flock locked them and the weapon away in a dungeon prison. The dungeon and its terrible secret were long forgotten—until a group of rakshasas happened across the ancient tale. Now they seek the weapon for their own designs. Pgs. 132-137

At Restwell Keep, you've heard that fortune and glory await those bold enough to brave the dangers of the Chaos Scar, a valley carved ages ago by a fallen star. The same tales warn that this Chaos Scar draws wickedness to it. Perhaps you can help stem this tide... and gain treasure along the way. While the location is a different keep, this adventure is an homage to B2 Keep on the Borderlands(https://adventurelookup.com/adventures/b2-keep-on-the-borderlands)

From The Magazine: "Every summer, Duke Hightower holds a competition quite different from the traditional jousting and archery tournaments held by similar lords of his station. The rules of his tournament change from year to year, and, to oversee the games, the duke has appointed two wizard brothers who help choose the setting and create the rules and challenges of the competition. This year the competition is called the “Owlbear Run,” an overland race that requires each participating team to escort a live owlbear from the town of Telvorn to the town of Milvorn. The teams will face a variety of challenges; some are devised by the wizards, others by the competing teams or their sponsors, and some occur entirely at random. All of these tests are in addition to the challenges inherent in motivating a temperamental owlbear. Fortune and fame await the first team to cross the finish line, and the local lords sponsoring the race are eager to enlist skilled champions for their causes." Pgs. 2-27

When the fires smoldered in the belly of an ancient red dragon tyrant, and his thirst had been slaked by the blood of countless innocents, the old wyrm made a deal with a succubus to spawn him a son and ensure his name would live forever. The demon held true, though she imbued the wyrmling with her own infernal blood. Those who fear and serve the abominable spawn of this pact know him as the Wyrm Prince. Cast into the abyss centuries ago by the legendary Three- River Paladin, the Wyrm Prince licked his wounds and recovered his strength. The Three-River Paladin has passed into legend, and the Wyrm Prince has resurfaced, his vengeance awakened along with his hunger. The Wyrm Prince sacked the high city Zhaldanis, slaying its people and claiming the greatest gift from the gods — the Soulstone. At this late hour, you must venture into the catacombs of the Wyrm Prince before the Soulstone loses its power and all mortal souls are damned.

In ages past, the wizard Karavakos made a deal with devils, which resulted in him being trapped in an extradimensional pyramid, unable to escape. His only hope for escape is to lure adventurers into the Pyramid, in hopes that they will destroy his splinters and return his power to him. But his wife Vyrellis, whom he slew in a rage when the Pyramid formed, still lingers in spirit and wants nothing more than to see him laid low... Although set to allow PCs to just fight through each encounter, tips are included for PCs negotiating with the factions trapped in the pyramid.

The Raiders’ Hideout is a series of underground chambers (or perhaps the interior of a pyramid) that serves as a base of operations for a band of gnoll desert raiders. The PCs have come to exact a measure of justice for recent brutal caravan raids. They’ve tracked the gnolls to their lair, where they intend to end the threat to desert trade once and for all. Pgs. 30-35

“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

Centuries ago, the four deities worshipped by mortals – Kishar, Kotaresh, Lyth, and Asar-Segt – threatened to drown the world in a flood of saltwater to punish the living for their impiety. The oracles and witches of the realm struck a desperate bargain with the gods, however, and convinced them to spare the world. In exchange, the mortal kingdoms were bound to demonstrate their faith once every generation by sending their most courageous and adroit warriors to the Crucible, a ziggurat in the lowest valley of the land. Every quarter-century, on the first full moon of summer, an eclipse darkens the night and the sealed ziggurat opens. Many traps, tricks, and guardians lie within the Crucible to test those who enter. Few who heed the challenge of the gods survive – most find only quick death. If the races of the world are deserving of the gods’ affection, their champions will overcome the trials of the Crucible and light the Divine Brazier hidden in its uppermost chamber. If they are not, the flickering candle of civilization will be snuffed. Little of value will have been lost. Published by Defy Danger and Save Versus Death

The PCs have traveled to the Nine Hells to confront an outpost of devils responsible for slave raids on their homeland. In this realm of burning ash and fire-streaked skies, the infernal legions prepare constantly for war. Pgs. 138-143

None know from where the Heresiarch first came, but all remember the night that it did. It rode down from the bleeding stars on a great serpent, hurling bolts of obsidian lightning that shattered the monuments and capitols of every nation. Its infernal army swept aside the defenses of the mortal empires in a single hour, decimating legions once thought to be the invincible fist of humanity's god-kings. Faceless priests - each bearing the symbol of the trident - drifted through the fallen cities and scorched villages on a frigid wind, and when they rose to greet the huddled men and women ringed by their festering, bloated dead, they spoke a single, simple offer: worship the Heresiarch or die. Thousands of crusaders fell tonight so that you might be given this chance. In a last stand that, for the first time, united all of the empires of humanity as brothers and sisters, a way was cleared into an infernal stronghold said to contain a gate to the Heresiarch’s fane. All is silent save for the clangor of distant battle. Surrounded by grim-faced knights and teary-eyed peasants – their hands clasped in desperate hope – you step through the glowing, churning doorway, knowing there will be no help and likely no return. Published by Defy Danger and Save Versus Death