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.
The earth churns in a city graveyard, revealing not the undead but an ancient war machine. A great iron transport bores its way up from depths below, disrupting funeral rites and sending the citizens into a panic. With an opportunity to investigate and reap the rewards of bravery, the party closes on the graveyard. There they discover that the pilots of the strange vehicle are soulless automatons who have spent an eternity burrowing toward the battlefront of a long-forgotten war. In this action-packed and gritty adventure, the party must battle automatons, breach the iron transport, and put down its mad and malfunctioning commander.
The party arrange for passage on a fast ship called the Silver Slipper. The good Captain Sara agrees to take them aboard for a reasonable fee. The voyage, however, is marred by strange events, and the crew begin whispering about a dark statue taken aboard as cargo. The statue is to be delivered to a port beyond the PCs' destination. When a fog rolls in one night, the ship is attacked by evil agents of a dark god come to claim the statue. In this nautical nightmare, the PCs must travel aboard the ship, interact with the crew, and save themselves from a boarding party of eldritch evil.
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.
"House of Reeds and Whispers" is the lair of a pair of red hags, suitable for four characters of 8th level. This adventure can be completed in one session. Two red hag sisters recently exsanguinated an eccentric collector named Nahl Fry and took up residence in his swamp-side home. Liori and Ijith were seeking an artifact from the ancient city of Talitheos, the sunken stronghold of the red hags. They found the artifact, a pair of knitting needles made from blood-infused coral. in Nahl Fry's collection. The sisters yearn to understand how the artifact works, and so they are testing its dark powers against a nearby hamlet. They have knitted rapidly growing crimson reeds that funnel the blood of fauna and farm animals back to the house. The hamlet's leader, Galnas, hires the PC's to investigate. The party must press through the reeds, defeat the sisters' guardians, face the hags, and end the reedy infestation.
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.
The spire has existed for as long as locals can remember. Rising above the sand near the ocean, the spire is topped by a natural cave system. Stories about the place circulate around the docks and taverns of the nearby towns—dark tales of ritual sacrifice and the worship of long dead gods of lightning and storm. Many claim the victims of the old cult still crawl through the tunnels accessible at the peak of the spire. Others say a new scaly threat now lairs there, and the storms of late have been most violent near that place. In this explorative and perilous adventure, the party ascends a great rocky spire to face the place’s past and the blue dragon that presently resides there.
Bodies are turning up in a city (or large town). The organs of the victims appear to have been turned to solid crystal; in a gruesome twist, the hearts of the victims have been carefully removed. The mayor and the guard captain have hit an impasse in their investigation. Agreeing to assist in finding the murderer, the party find themselves under attack by infernal assassins as they follow the clues to a gemcutter's workshop. In this rich and devilish adventure, the party must find and face a murderer and a charming devil.
Beware the night-things, strangers!
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.
Goblins have taken over the town you live in. They are ransacking each and every building. You must either convince them to leave, or take them down.
"The Hive" is a spawn of Arbeyach lair, also featuring giant termites and termite swarms, for five 6th-level characters. This adventure can be finished in one session. Several mounds in the Forsaken Hills are the dens of voracious termites that have added flesh to their diet to supplement dwindling wood supplies. At night, swarms of termites hunt and devour prey. They swarm over victims in wooden carts and wagons, and bring the dismantled wood back to their mounds. Three spawn of Arbeyach, searching for a location to summon Ia'Affrat, Arbeyach's herald, discovered a mound filled with particularity nasty termites and used their vermin empathy to gain acceptance. They dug out a cavern beneath the mound, and now use the termites to protect themselves and gather food while they complete a difficult ritual involving dozens of sacrifices. The final sacrifice is prepared and the spawn are finishing their ritual when the party arrives.
This adventure is suitable for four 6th to 7th level PC's and may be completed in a single session. Oithois the exceptional ice mephit and his foul underlings have uncovered a powerful relic at the entry to ancient ruins. The monstrous mephits seek to crack a hole between the material plane and their icy home world. Oithois plots to lead an army of elemental lackeys and conquer the civilized outposts of the north. This ice mephit has studied the machine and is confident he can open a gateway to the elemental plane of ice. PCs are approached by a frostbitten traveler, who pleads with them to assault the terrace. The adventurers must mount an attack against the mephits, contend with an unintentionally summoned young white dragon, and defeat Oithois upon the icebound terrace.
The mountains are the border between our kingdom and the realm of the fire giants. Look far eastward. See how the peaks turn black? Their forges must burn night and day to mark the mountains so. Some mornings, sunrise dims from the smoke and soot. Long have we watched the pass and tallied our fortunes at its stillness. Recently, though, there are signs our luck is turning. Fiery orbs sail through the night skies and land too near these woods. Scouts report deep craters shrouded in smoke and ash. One sits a mere hour’s walk from this outpost. I fear the enemy makes ready some terrible weapon . . .
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.
Rennie and Linde are in search of their father, Petring, who they saw disappear into the crypts beneath town. The crypt is thick with supernatural shadow. Torches can be lit from a brazier of green faerie fire in the entrance that cuts through magical darkness. The torches burn rapidly, and the PCs must travel quickly to preserve their light until they reach the funeral pyre in the heart of the crypt. There they can learn the way to the Carrion Shrine of Qorgeth.
Who Do You Trust? In the cool streets and blazing bazaars, the word is out: a great treasure has gone missing in the Everlasting City of the Cat, and some very ambitious people have set their sights on it. Many paws and claws are out, and everyone is sniffing around for something rich and strange. It’s an odd time for a catfolk thief and a gnoll merchant to make very tempting offers to strangers in town. Or, perhaps it’s not odd at all. Get caught up in the hunt with Cat and Mouse by Richard Pett and Greg Marks! A perfect introduction to the Southlands campaign setting, and it fits neatly into any desert city where cats are sacred and rats are cautious and sly.
Within the darakhul city of Gonderif, at the nadir of a thousand‑foot‑deep chasm, is the site of a vile tournament where Gonderif ’s most rebellious slaves and war prisoners are forced to fight to the death—and through undeath after undeath—until only one living champion remains. Whether they came as captives or as liberators, the PCs must survive the Undying Tournament.
Rumors fly up and down the river. People have vanished. Bodies have appeared, horribly mutilated. Death stalks the streets of Zobeck, and the people are afraid. Will you stop the killer before he strikes again, and again … and again?
"Ruins of the Umbral Tower" is a shadow fey hunter lair suitable for four or five 8th-level characters. This adventure can be completed in a single session. The ruined Umbral Tower rests deep in the forest, in a marshy region avoided by all but songbirds. Long abandoned by its original occupant, the tower features a malfunctioning gate that connects this place and the Plane of Shadow. The site serves as a base for a group of shadow fey hunters and their entourage of hounds and guardians. The hunters used the gate to travel from their home plane, and they now attempt to bag as many trophies and as much loot as possible before returning home when the gate reactivates.