A Conspiracy of Doors is a Dungeons & Dragons adventure for five player characters of 11th level. It can serve as an introduction to Sigil, the City of Doors, as well as a group of adventurers' first taste of action at the paragon tier.

The village near Oreclasp Keep has been reporting brutal owlbear attacks that have left people missing or dismembered. Lord Oreclasp has placed a bounty for every owlbear beak brought to Oreclasp Keep. The villagers don’t suspect the deeper problems brewing in the land.

The desolate, uneven country known to locals as Battlefield Downs is strewn with the scattered remains of the ancient dead. During the last terrible years of the old empire, a series of grinding military engagements played out across the rolling fields of Battlefield Downs. In one battle that was part of a wider, disastrous campaign that contributed heavily to Nerath's downfall, the Empire of Nerath's legions clashed here against ravaging gnoll packs. It is now a haunted place, where only the bravest dare to tread. Pgs. 72-79

Oblivion is a town like no other. Situated in a hidden valley within a high mountain range and accessible only via air or a secret tunnel through the mountains, it has remained unknown to all except its inhabitants for uncounted centuries. What happens when a natural disaster exposes the town to the world and lets loose an ancient danger at the same time? Will the PCs aid those in need?

The Raven Queen’s servants often seek out mighty allies. One of these is the black dragon Quetzallus, who resides in a deep cavern on the Shadowfell guarding a stream of souls flowing into the Raven Queen’s realm. But a death knight named Raxikarthus, betrayed by the Raven Queen in life, now seeks to enslave this dragon for his own purposes. He madly believes that he can stand against the Raven Queen, and seeks allies of all stripes—even her own servants—to do so. The death knight has found a pathway into the Shadowfell thought closed by mortals. Beneath a decayed keep, the undead dragonborn has reopened this portal and led his forces into the Shadowfell itself. The PCs are called in to beard the death knight in his lair. They find it abandoned, but discover a strange passage in the lower reaches. Pgs. 162-167

The residents of Haskenport are worried -- someone is living at the old manor house. The local druid says it's a band of hobgoblins. Are they just looking for a temporary shelter before moving on? Or do they plan to bring a whole tribe to live there when the place is secured? Or do they work for an even worse creature that no one has seen yet? Whatever their reasons for being there, the situation can't be good. It's up to the heroes to clean the monsters out of the place so the townsfolk can sell it.

Candlekeep is under siege, and it needs adventurers to help protect it! Heed the call to defend the legendary monastery and stand against the tide of evil. Confrontation at Candlekeep was used as a D&D Next playtest for D&D 5E. It was released to organized play Dungeon Masters in August 2013, and ran at Gen Con, PAX, and other major conventions. The adventure includes rules for running multiple tables, but can also be run for just one table. The attack on Candlekeep by forces of Asmodeus is tied to the events in Ed Greenwood's novel about the Sundering, "The Herald."

The recent discovery of an entrance to the Underdark has set local leaders on edge. In a display of initiative, the First Lord of Hillsfar has ordered the construction of defensive structures surrounding what locals have begun to call "The Waydown." You have been charged with escorting an emissary back to his home in the Underdark without alerting the Red Plumes.

Three important citizens of Phlan, who stand against the tyrannical dragon that rules, seek to escape and find refuge across the Moonsea. Can you extricate those that are vital to the factions before it’s too late?

Side-Trek adventure When your PCs gain access to the teleport spell, their whole world changes. That simple spell opens up instantaneous, long-distance travel. No more long overland journeys or dangerous retreats through hostile territory. All it takes is clasped hands and a word from the wizard, and poof! The PCs are where they want to go. Except that it isn’t that simple, because teleport isn’t foolproof. The off-target teleports are a matter of scattering your PCs someplace else on the map and forcing them to get their bearings and make the long overland journey anyway. But this Side Trek focuses on the really intriguing column on the teleport chart: “similar area.”

The people of Orașnou are desperate. The village is on the brink of starvation and has little chance of surviving the harsh winter. Even if they had enough food and supplies, Lord Strahd’s taxes are due, and the ruler of Barovia does not accept excuses as payment. The Burgomaster and others in the village have recently learned of a wealthy estate that might have enough resources to solve both of Orașnou’s problems. It is a temptation he cannot afford to resistor can he? Part Nine of Misty Fortunes and Absent Hearts

Lost Laboratory of Kwalish explores an alternate expedition into the Barrier Peaks. The legendary inventor disappeared in the peaks eons ago… as it turns out, finding a crashed planar ship and studying its technology to fuel his own experiments—only now, Kwalish’s lost research is desperately needed! This adventure explores two locations within the Barrier Peaks, and includes new monsters, magic items, and spells, plus sci-fi trinkets, random encounters, and even rumors of the area submitted by the player community! Further featuring new art, maps (from Claudio Pozas), and even a cartoon (from Jason Thompson)—as well as the famed suit of powered armor, as edited by Jeremy Crawford on the Dragon+ livestream! Best of all, all monies that Wizards of the Coast receives from sales of this PDF are donated to Extra Life. Your purchase of this adventure goes to a truly great cause!

The ruined manor now known as Kobold Hall was once a minor lord's proud holding, a walled keep overlooking the old King's Road. That was years ago, and the lord's name and glories he earned are long forgotten. Today, the place is called Kobold Hall after the malicious humanoids that invest the place. Pgs. 210-219

Displace Beast Maze is an adventure that has one long encounter that is a combination of a puzzle (maze) and combat encounter (Displacer beast). The Displacer beast tentacle's ability to attack through the maze walls, knowledge of the layout, and hit-and-run tactics make the labyrinth both a useful and possibly deadly lair for the creature. Pgs. 27-29

Despite what some may think, those in Zhentil Keep haven't forgotten about their orc troops in Phent. In public discussion in Zhentil Keep, the leaders of the Zhentilar, the military branch of Zhentil Keep, have confidently asserted that the orcs in Thesk are completely loyal to Zhentil Keep. They maintain that the orcs are just biding their time and building up trust among the citizens, until the appointed time when the word is given. In private, these same leaders are gravely concerned. The leaders didn't get to positions of command by being idiots, and they know that the orcs are treated well and accepted in Thesk, which is a rarity for them with the humans and humanoids of Faerûn in general. The leaders know that many of the orcs would be reluctant to destroy the source of this acceptance. But what if the orcs' chief god, Gruumsh, told them to? The Zhentilar turned to the Black Network and presented the problem. The Zhents knew what to do. The Zhents have dispatched a powerful cleric, a master of persuasion and deception, to pose as an orc prophet of Gruumsh and whip the orcs into a destructive frenzy. In addition, the Zhentilar have staged raids against human caravans by what look like orc warriors so that they can start antiorc sentiment among the population of Thesk. Twin Oaks is a tiny, sleepy little thorp located just within the sheltering eaves of a great forest. Home to an extended family clan of farmers and woodcutters, the community was founded within living memory and since its creation the inhabitants have known only peace and prosperity. But just as the gentle breezes of late summer can transform rapidly into the deadly storms of autumn, dark times have come suddenly to Twin Oaks, in the person of Deskryn, a vampire who finds himself on the run from deadly enemies. Just two nights ago, as the good folk of Twin Oaks prepared for the annual harvest, Deskryn’s castle home was invaded by an intrepid band of adventurers led by a noble paladin. Although the party did not achieve its goal of slaying the vampire himself, they managed to drive him from his lair and force him to flee into the night with only the barest fraction of his former resources in tow. Unfortunately for the good folk of Twin Oaks, theirs was the community onto which the 2 vampire stumbled first, and it is here that the fiends have taken refuge. The little settlement offers the displaced vampire all that he needs: shelter from the hateful light of the sun, a selection of new servants, and a supply of fresh mortal blood. Even in his current condition, Deskryn alone is more than a match for the nhabitants of the thorp; but his best hope of survival lies not in conquest, but in secrecy. He plans to hide in Twin Oaks until he believes it safe to leave; then, he can begin plotting his revenge on the hateful paladin and her compatriots who brought him to this lowly state. As for the citizens of the thorp, they are all but helpless in the face of this powerful enemy. The vampire has already slaked his unholy thirst on one of their number, and his minions have taken hostages to ensure that the inhabitants do as they are told. All the folk of Twin Oaks hope that Deskryn will take what he wants and then leave them in peace, but few of them believe that such hopes are realistic. Until Deskryn has satisfied himself that the coast is clear, Twin Oaks—and its people—belong to him.

Stagwick’s long-standing peace with giant-kind is threatened as a patrol of Blood Riders spark a feud with a local tribe of giants. With word of strange activity coming from the Ice Spires, Good King Hartwick can’t be too careful. Can you quench the giants’ thirst for revenge?

The Shrine of the Axes has been restored and Raggnar Redtooth, who previously conspired with dragon cultists, is trying to restore his reputation in Parnast by sponsoring a feast. There is just one thing he needs, meat for his feast. Game is supposed to be plentiful in the Weathercote Wood, but the townsfolk are all busy with their own work, and the minions of Bad Fruul are still out there causing trouble. What can go wrong on a simple hunt?

A black dragon’s treasure hoard has been located in the Twilight Marsh, and within it are secrets that hold interest to the factions. With the dragon marauding over the countryside, the horde is left unguarded. Now is the time to plunder its lair!

The white dragon Hinterbite has kept the barony of Icenvale ruler-less and poor for centuries. But now his power and that of his secret supporters is threatened by the popularity of an heir who hopes to make a change for the betterment of the people. Can the PCs take on the dragon and his minions and restore power to the barony's rightful ruling line? Download this new adventure by Owen K.C. Stephens and let your PCs face the dangers of the dragon lair! Fait Accompli is suitable for 12th-level characters. At its most basic level of use, Fate Accompli is a straightforward quest to clear a dungeon and slay some dragons in an arctic climate. However, it also includes political elements that you may either may play down or use to expand the scenario into a mini-campaign, as you wish. Fait Accompli is a short adventure for four 12th-level characters. It is set in the wilderness north of a minor border barony that has at best an arms-length relationship with any larger nation. Though the adventure requires all these elements to work, it can be set on the outer edge of any kingdom near an arctic region. As always, feel free to adapt the material presented here as you see fit to make it work with your campaign.

The city has been plagued by mysterious nighttime assassinations that leave behind no clues about who might have perpetrated them. Divinations from temple of Ioun adherents suggest the guilty parties can be found under a nearby curio shop. The PCs set off. Beneath the shop waits the Poisoned Shadows Assassins Guild, as well as a greater danger than the party expected. Pgs. 54-59