"The Clockwork Tower" is an azza gremlin lair suitable for five 3rd level characters. This adventure can be completed in one session.

While traveling through a jungle expanse, the party meet a trader named Smera with a strange tale. Turned away from a nearby outpost, the trader is now heading back to civilization. Curiosity leads the party to the outpost, which has been destroyed. A strange disease has taken the outpost’s inhabitants, who built the place in support of a scholarly excavation of a nearby temple ruin. Following the path carved through the jungle by the excavation team, the PCs find the temple and its secrets. In this moss-covered and dark adventure, the party explores an old temple, faces its verdant guardians, and finds the source of the strange disease.

Nightmare of Blood! The village of Karvolia has paid its annual tribute of blood to the Red Goddess—but this year, none of the donors returned. Now the priestess commands the village elders to send another dozen young men and women to the edifice of stone that looms on the cliffs overlooking the village: the dreaded Blood Vaults. The terrified elders are willing to pay adventurers handsomely to find a way to make this second tribute pass them by. Unfortunately, the latest set of donors has already entered the Blood Vaults, and are being prepared for the donation process…

A venom maw hydra lair suitable for four or five 10th-level characters. The Red Craw Marsh, so called because of the delicious and plentiful red crayfish that live in the area, is a boon to the nearby village. More than a few intrepid souls brave the swamp each season to collect the crayfish. They either sell the crayfish to local establishments or ship them to nearby cities, where they earn a good price as the crayfish is a delicacy among the wealthy. The villagers have established a tentative peace with a clan of trollkin that inhabit the swamp. The crayfish collectors pay a small fee to the trollkin, who allow them to ply their trade in the marsh without (much) interference. It is a tense but profitable relationship for all involved. A powerful creature has moved into the marsh, however, threatening the delicate balance. When a venom maw hydra decided to move to the area of the marsh between the human and trollkin villages, it brought along a number of creatures that worship and serve it. This hydra and its allies have killed some of the crayfish hunters and some of the trollkin. Each side, unfortunately, believes that the other has broken the truce, thus stirring up animosity and putting both groups on the verge of war.

History states that Zobeck was reborn in blood 80 years ago, thanks in part to the creation of gearforged by a revolutionary coalition of workers and mages. Unfortunately, history has recorded only part of the truth, and the Praetors will do anything to make sure the rest remains buried.

Citadel of the Void Dragons is a void dragon lair suitable for four characters of 14th level. It is a logical sequel to Sky Stairs of Beldestan, but it can be played independently. The void dragon Astraxis and his mate, Yrsinestra, have long lived in an orbital citadel where the sky meets the void. This location allows the dragons to communicate with malign creatures of the void and still enables them to feast on the whales, cattle, and other large animals of the firmament below. This ready food supply is urgently needed right now, because the mated pair has recently laid a clutch of eggs. As a result, Astraxis is almost never at the lair—he is constantly on the hunt, bringing food to Yrsinestra and often sleeping on the earth below the citadel.

A doctor who helps with rare and socially debilitating diseases who welcomes all to her doorstep suddenly becomes reclusive...and her patients are no longer able to be found. Adventurer's are hired by a powerful merchant who had committed her son to this doctor, and they need to find him and bring him home.

The Free City of Zobeck has thrived since overthrowing the tyrannical Stross family. But an ancient bargain gives the Queen of Night and Magic a claim to the city—and now the shadow fey have seized Zobeck as their own. The city’s only hope lies with a band of heroes who can outfight and outwit the shadow fey in the heart of their own realm: the maze of treachery and deceit that is the Courts of the Shadow Fey. This 148-page 5th Edition adventure contains 100 NPCs, a map with more than 60 locations of the Courts, and more than 40 combat and roleplaying encounters. Courts of the Shadow Fey takes you from the mortal world to the heart of Shadow, where you’ll: Fight your way through the dangers of the Shadow Realm to reach the shadow fey’s courts Engage in dangerous courtly intrigue, trying to increase your status to win an audience with the Queen herself Duel for honor, and perhaps win the hand of a lover among the fey nobility Can you free Zobeck from the grasp of the shadow fey? Or will your fate become a tale told in hushed tones as a warning against angering the Queen?

The Vault of Pallon the Pious is an adventure for four 2nd level PCs. A famous pirate captain came to worship a lawful god in his final years. After a lifetime of plundering, pillaging, scuttling, and murdering along the coastline, the fear-inspiring Pallon the Merciless rebranded himself as Pallon the Pious. But, a history of violence is a hard thing to reconcile, and the salty old dog slowly succumbed to madness. His most precious possession was a set of scales that reflected perfectly his own inner conflict. The Scales of Misjudgement are buried deep in the treasure room of his crazed rock-island vault.

We’ve been running these fights since before my granddaddy helped drive them gnolls out. We have a proud history of taking care of the animals, too—we get ’em as pups from the dwarves up in Granitehold. Sure it’s bloody, but you’re not in the sot lands of kings and queens anymore, are you. Say, did you hear that?

The loss of Skyreach Castle in Hoard of the Dragon Queen was a major setback to the Cult of the Dragon, but still only a setback. The cult is determined to retake the castle and claim Tiamat’s lost treasure buried in its frozen walls and cloudstuff vaults, but they aren’t the only ones. Blagothkus the cloud giant is still the master of Skyreach, and he has gone to the hall of his cousin Brunvild, ice lord of Uldoveld, for the resources to repair and reoccupy the castle. At the same time, the party is dispatched by the Council of Waterdeep to reclaim some of the stolen treasures lost when the castle fell.

The trouble began several weeks ago when a duergar excavation team went to work in a long-abandoned temple. Drawn to the temple by stories of riches and artifacts, the duergar hired several giants as laborers before cracking the temple’s sealed doors. The largest of the giants, a loathsome Thursir mutant named Huppo, used his acidic vomit to expedite tunneling into the temple’s collapsed hall of worship. Then, Huppo found the horn—an unusual instrument made from a single piece of stone, with a mouthpiece so intricate only a master carver could have made it. The horn became the giant’s obsession. Seeing only the horn’s potential sale value, the dwarves demanded Huppo turn it over to them, but Huppo refused. To force compliance, the dwarves stopped feeding the gluttonous brute, but Huppo had already found his own source of food; in deep areas of the temple, worms were chewing out of the rocks, and Huppo ate them by the fistful. He also played the horn. Then, after several days of blowing the horn and devouring the strange worms, Huppo released a belch so noxious the dwarves had no choice but to lock him in a sealed chamber and carefully consider their next move. The horn’s call, however, had caught the attention of passing nomadic orcs. They set up camp outside the temple entrance in the hope of finding the horn and its player. That’s the current situation at the temple: the giant refuses to stop blowing the horn and belching out deadly clouds of stomach gas; the dwarves are frightened and edgy while their leader is obsessed with malevolent whispers; orcs are threatening to overrun the place; and the population of worms grows steadily as something awakens deep in the stone beneath the sanctuary of belches.

In the small hamlet of Riverbend, the miller’s wife is missing, and the locals suspect the husband himself was involved. But all is far from what it seems. Ellessandra, the missing woman, is actually an elf from the Summer Lands. She came to live in the human settlement when the miller made a dangerous pact with the River King, the lands’ powerful sidhe ruler. Now, the player characters must unravel the truth behind Ellessandra’s disappearance, piece together the involvement of a young fey lord, and dive into the fey courts of the Summer Lands to stop a raid that would surely spell Riverbend’s doom. All the while, Arthurian intrigue and mischief runs high among the fey lords and ladies in this mercurial, open‑format adventure from acclaimed adventure designer Wolfgang Baur!

Fane of Serpents is a titanoboa lair suitable for three to five 10th-level characters. A rocky butte covered with soaring ruins looms over the landscape. Legend describes it as a monument raised by an inhuman race that was wiped out centuries ago as retribution over foul practices. Locally, the spot is known as Titan’s Height. It rises starkly above the surrounding area, with four terraced plateaus. Each level is covered with the ruins of many-columned halls in an architectural style unlike anything else in the area. Their age and strangeness alone are enough to generate fearful legends. The stories grow worse when travelers or livestock disappear near Titan’s Height, which they sometimes do.

Multiple groups seek a thug’s girlfriend through the streets and alleys of Zobeck. The adventurers’ lives may depend on finding her first.

Sky Stairs of Beldestan is a vampire warlock lair suitable for four characters of 14th level. It can be a lead-in to Citadel of the Void Dragon, or it can be played independently. For as long as any dragon can remember, the stairs of Beldestan have been a site of pilgrimage, a direct route from dusty earth up to the heavens, where enormous creatures soar and carry sacrifices up to the gods. Its base is well known for the efficacy of the invocations offered there, but very few other than the most faithful dare venture up the stairs themselves: enormous eagles, howling winds, and various inimical undead make the stairs a place that few find congenial for long.

Fight the Monster in its Den … If You Dare! Book of Lairs brings you 24 great monster lairs for 5th edition! Each of these exciting and unusual battlegrounds comes with a complete short adventure, including a hook, area hazards, tactics, and treasures. Stage your 5th Edition fights in unforgettable locations like: Alchemist’s Guildhall Necromancer’s Cistern Clockwork Tower Den of the Rotten Kings Lost Halls of Everforge A Pirate Cove Crypt of the Warlock Citadel of the Void Dragon A Dark Grove Lost Fane of the Serpents Branches of Yggdrasil Tomb of the Scorpion Prince Sky Stairs of Beldestan Imperial Ghoul Outpost Umbral Vampire Lair And 10 more! Designed by some of the top names in the RPG industry, Book of Lairs is sure to add an aura of wonder and mystery to your game! Book of Lairs uses standard monsters as well as surprising new creatures from Tome of Beasts, and both monster books are required for maximum playability.

A welcoming desert oasis offers respite from the searing wasteland, but this paradise has perils. Castle of Sand is suitable for three to five 4th level characters.

The city is plagued by an affliction being called "stone sickness" or "the gorgon’s touch" that disorients people and turns them to stone. Those with, or suspected to have, the affliction are being banished from the city. Some demand a cure, but most are just scared for their loved ones. A ravenfolk woman named Spinel Larkdon, mother to a child with the gorgon’s touch, begs the PCs for assistance. An artifact known as the Shroud of Tiberesh, capable of curing any sickness, is locked away within The Umbers' vault of spoils below the city. Passionate, she is determined to save her son and all those afflicted. Fortunately for the player characters, completing the Umber’s Gauntlet alive means they are not only entitled entrance into the cult, but also a single item from its vault of spoils. The PC's only hope of procuring the Shroud is by traversing this initiation Gauntlet – a series of traps, monsters, and puzzles devoted to the demon-god Nakresh - and claiming the Shroud as their prize.

A snow hag lair suitable for four or five 7th-level characters. Mother Rime lives north of a small fishing village in the far cold north. For years she's hidden her true nature from the townsfolk, appearing as an old benevolent wild-woman to the town. When one of Mother Rime's 'children' break from her cold-hearted ways, adventurer's are sought to seek to correct the evil in the north.