"Doom Croaker's Branches" is a lindwurm lair suitable for four or five 4th level characters. This adventure can be completed in one session.

"Temple of the Deep Ones" is the lair of a group of deep ones and their god, suitable for four or five 7th-level characters. This adventure can be finished in one session. Ship captains report that a mysterious island has surfaced in the middle of a heavily trafficked trade route. Worse, ships that venture too close to the island are assaulted by a terrible creature and its servants. The island is disrupting trade throughout this part of the world, and several ships have already been lost. Unbeknownst to those that know of the place, the island rises at the will of Shar-Ngolyeth, a long-lost deity also known as That Which Lurks Beneath the Waves. The island is populated by a cult of deep ones and the beasts they have subjugated in the name of their dark god. The creature responsible for sinking ships is an aspect of Shar-Ngolyeth, a kraken. It is not meant for combat encounters; it's largely a plot device in this encounter.

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.

She lay down her sword and wept; her tears are the water. She lay down her body and slept; her bones are the fountain. Atop the mountain, at the war’s end, a place for gods to wonder.

This is an adventure for four 6th to 7th level PC's that may be completed in a single session. The Untamed are a street gang in a busy city. A recent change in leadership has transformed the members from pickpockets and second-story thieves into kidnappers for an inter-dimensional aberration named Xlrieh'oc. Their hideout is now a strange and wicked factory, capable of extracting the firm essence from a person; the process leaves the victim partly ethereal and their form no longer casts a shadow. Although most victims die during the procedure, those who survive are conscripted into the gang. The extracted essence is crated and shipped to the aberration's home plane through a breach between worlds in the hideout's backroom.

Meet the Trollkin… And Drive Them Into the Sea! The trollkin and their shaman have come to a village by the sea, stormed its walls, and taken all the villagers as slaves and property. They have eaten their way through the saltfish, devoured the herd of sheep, and might be planning to eat the PCs next. Then, one escaped villager begs strangers on the road for help… And gives them the chance to shine as true heroes striking down raiders of pure evil. The Raven’s Call is an adventure for 3rd level characters that brings mythic power and a true rescue story for 5th Edition, and introduces locales and NPCs that players will never forget. It offers new monsters and new magic in the unique style of Wolfgang Baur, one of the leading RPG adventure designers.

A great threat lopes toward a small city at the edge of a wasteland. One of the leviathans of the wasteland, a gigantic malevolent creature known locally as a “walker,” appears to be on a course directly through the city. The PCs are called to heroism by the city’s council, who have learned that the walker is being directed by a foul darakhul who has gained control of the creature and directs it from atop its shoulders! Scouts have discovered a portal used by the ghoul to teleport atop the walker. With a hastily scrawled map, the party must navigate the wild hills to locate the magical doorway. In this epic and deadly adventure, the party must navigate wild hills, locate a teleportation portal, and slay the Darakhul and his minions on teetering platforms built atop the shoulders of the walker.

The players and the DM compete in a race against time to see if all humanity can be saved, or if the fiendish servants of the Hells can corrupt the world for their own nefarious purposes. Special time-keeping and resurrection mechanics are included to keep the pace exciting and the plot moving. Prepare to delve into the long-forgotten Tomb of Mercy!

Once, we were friends. She used her spells to ward our grove against the darkness in the woods. It was the mirror that turned her mind to covetous thoughts; she saw its power and changed. We have kept the mirror safe for an era, but her soldiers grow strong—and now something makes for our tree we cannot repel. If her aberration reaches the grove, the mirror will be hers, and then we will all know what lies at the tip of the wickedest branches.

The first part of two lairs—a ratfolk warlock lair and a rattok demon lair—suitable for four or five 3rd-level characters. The lairs can be run separately or together as one longer adventure. Demon Lord of Rats is looking to corrupt the city with his influence. They have grown in number and now seek to infiltrate and influence the guilds of the city.

In the thriving city of Zobeck, a breakdown of the vital Puffing Bridge is throwing a wrench into the entire city. Workers can’t reach their jobs, merchants and goods can’t reach markets. In short, if this problem isn’t fixed quickly, there’ll be chaos in the Free City. Of course, this isn’t a simple mechanical breakdown but an act of sabotage, and the saboteurs are still at work when characters arrive to investigate.

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 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.

The General who commanded the successful and profitable Crossroads Mercenary Company turns up murdered in his home, on the very eve of his scheduled announcement of which of his ambitious captains he’s chosen to succeed him as commander-in-chief. Every one of those commanders was in the house when the murder occurred, so they’re all suspects. If that’s not enough to keep things exciting, the clock is ticking down to zero. The General made a pact with devils years ago, and unless the murder is solved quickly, an infernal gate will open, allowing devils to flood through the General’s mansion into the world at large.

The people of Feycircle believed the fairy ring for which their town was named protected them from the encroaching sands of the Western Wastes. When the ring withered, they learned they were right. Feycircle’s dewflecked pastures and verdant forests succumbed to the Wastes in an instant. Feycircle sank deep into the sands and was soon occupied by a tribe of fanatical dust goblins, a herd of dogmoles, and the giant worms that caused the blight. The PCs may explore the keep—the only structure remaining in the dusty sinkhole now called the "Pit of the Dust Goblins." Inside the keep is an entrenched gatekeeper who can divulge that two children remain in town, imprisoned by the goblins. The dust goblins have summoned and imprisoned a selang—a shadow fey—inside the blighted fairy circle. The goblins fear open combat and have laced the sunken keep with traps, and would sooner parley than fight.

The follow up to the ratfolk warlock lair, A Rat Among Us, Part One. It is suitable for four or five 3rd-level characters. The lairs can be run separately or together as one longer adventure. The Demon Lord of Rats is making his play for control of the city. Will our stalwart adventurers find the source of his power and thwart him?

The party arrives at an abandoned outpost in a frozen landscape. The outpost appears to have suffered some strange attack. A halfmad scholar from a distant city hides in the outpost; he is drawn to the region by his visions of a breach in the ice nearby—a breach he believes leads to the realms beyond the stars. Heading east, the party finds that the breach is no simple chasm in the ice, and its scaled guardian does not appreciate its work being interrupted. In this frozen and otherworldly adventure the party must overcome rimy insects, a void dragon wyrmling, and the pull of the breach itself.

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.

A serpentine lamia lair suitable for four or five 4th-level characters. A matriarch lamia leads a large consortium of merchants from a distance and through intermediaries. However, she has recently descended into the common madness of her kind and set up a 'celebration' at an abandoned mine for her consortium and their guards. Will you survive the party?

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.