"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.
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.
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.
"I was taken by the evil dogs while camping near Agav's bog. They dragged me into their lair, and it wasn't until I escaped that I knew the truth of the place: a great and bony wing buried in the side of a hill. They chained me in the dark with a candle made from foul wax and forced me to dig at the marrow. Their bonds were poorly made, and I fled several days later while they slept. What purpose did they have in mining that marrow? I cannot say..." The Marrow Mines are dug in and around the fossilized wing of an unnamed leviathan. A small pack of kobolds lives and works in the mines, which are heavily trapped. The kobolds defend the area fiercely and patrol the region around the mine. At night, a handful of urds make aerial surveys of the territory. The urds live in the deep reaches of the wing's tips.
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.
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.
"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.
A small band of centaurs have seen their water source fouled by unknown magic. When word of their plight reaches the party, they embark on a day's travel to the centaur camp. Along the way, they encounter injured wildlife and panicked bugbears. Terrifying storms beset the region, raining down acid and oozes. Agreeing to investigate the small corrupted lake, the adventurers discover a long buried evil has awakened—bringing with it oozing undead. The party must navigate the wilds, face the ooze storms, and confront a reanimated warrior who betrayed her god.
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…
Last Gasp is an adventure set in a desert setting, exploring the cursed tomb of an ancient king of great magical power, a magical river, and includes both deadly combats and mysteries to confound tomb-robbers. Seek out the riches of a king, and may fortune favor you!
A local monolith which is the nearby town's good-luck charm and tourist attraction is taken as a lair of a wandering wind harp devil. Will the heroes banish the devil, or come up with a dark bargain?
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.
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.
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 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.
"The Aboleth's Grotto" is a nihileth lair suitable for four 10th-level characters. The adventure can be completed in one session. The small town of Springwell harbors a secret that almost nobody knows about, and those who do conveniently ignore: it sights right over an unoccupied settlement of the deep caverns of the underworld.
"The Clockwork Tower" is an azza gremlin lair suitable for five 3rd level characters. This adventure can be completed in one session.
The nefarious master wrestler Dib, the goblin, is "terrorizing" the streets of the town (or city). Since his defeat in his roadside fortress, the would-be chieftain has plotted his revenge. Gathering to him a new batch of dim minions, Dib has transformed a stolen merchant wagon into a machine of war. The wagon is powered by several goblins inside who, while devoted to Dib, lack the strength to pedal the thing quickly or consistently. Dib's plan to wreak a path of havoc through the streets has resulted in something a bit more disappointing. In this light-hearted and quirky adventure for four first- or second-level PCs, the party must confront the war wagon, gain entry to it, and defeat its defenders—the lives of several potted plants and a few market stalls depend on it!
"The Pirates' Cove" is the lair of a blasphemous cult, suitable for four or five 5th level characters. This adventure can be finished in a single session.