Once every decade, the tides of the Empyrean Ocean recede far enough to reveal the highest eaves of a mysterious undersea tower. Long ago this was an eldritch fastness of Sezrekan the Elder, the most wicked wizard ever to plague the Known World, but now the tower is known simply as the final resting place of the fabled Black Pearl – an artifact rumored to bring doom upon all who dare to posses it. Tonight the moon nearly fills the sky, and the tides have already begun to recede. Adventurers have eight short hours to explore the tower before the dark waters return. The fabled Black Pearl will be theirs for the taking…if they can survive the Pearl’s curse.

Unlike other Dungeon Crawl Classics, this volume does not present a completed adventure. Instead, it presents a set of DM tools that will make your job easier. This book of dungeon geomorphs gives you everything you need to map out exciting underground adventures. The geomorphs are modular map segments designed to be combined in a variety of ways. There are 124 map segments, encompassing mazes, dungeons, underdeep caverns, monstrous lairs, castles, ruins, halls, and many other intriguing places to explore. Together they combine to make thousands of possible maps!

Many centuries ago, a band of paladins fell from grace. These blackguards were defeated after a great battle and their grim fortress, the Iron Tower, was razed. A small abbey was established near the ruins, where generations of monks mixed ancient eldritch wards, mighty clockwork traps, and multiple fail safes to build the Iron Crypt of the Heretics. Three mighty vaults ensured that its evils would be sealed for all eternity. But unbeknownst to the brotherhood, their impregnable crypt had a single weakness: the very monks that had built it, for they knew its secrets. When a devourer stole into their abbey, the profane beast forced the monks to help it inside the Iron Crypt. It successfully broke into the first of three vaults, releasing an army of wights. The story of the devourer and his wight army is told in Dungeon Crawl Classics #12: The Blackguard’s Revenge. Now, in the Iron Crypt of the Heretics, the heroes must venture into a crypt designed by the world’s greatest thieves, magicians, and seers, solve its puzzles and deadly traps, and seal it once more from the outside world.

During the Last War, the ancients deployed their war-skiff assault units from elevator platforms that now dot a sector of the wasteland like a ravaged forest of rusted steel stumps. Most of the platforms are buried by the shifting sands or stand as shattered reminders of a war that was once meaningful, but one of these decaying steel stumps still remains partially energized, layered with tunnels below ground, and powered by a unique extra-dimensional reactor core beneath the surface of the planet.

When the heroes come into town, word arrives that a nearby cloister of the god of valor is under siege by an army of undead. The adventurers travel to help defend the bastion of paladins, only to discover that these undead are actually ancient enemies of the paladins’ order. They have discovered a way to exact vengeance for slights committed centuries ago, but to finish their plan they must breach the cloister’s catacombs! Can the heroes battle them to the catacombs and defeat their horrific blackguard champion?

While investigating rumors of a dangerous blue dragon wreaking havoc in the deep desert, the heroes tumble under the sands into the magically sealed dome of an ancient palace. The temporarily weakened dome reseals above them, and they are left to explore the golden palace of Zahadran, once seat of power for the legendary Caliph Ardishir the Magnificent. But the dome is weak because it has been assaulted by the mythical storm demon Azi Dahaka and his trapped minions, evil creatures that were sealed under the magical dome to keep them from ravaging an unsuspecting world.

In this adventure, the coastal village of Fair Haven needs the characters’ help. For decades, Fair Haven has relied upon its lighthouse to guide merchant vessels into port. But on a recent stormy night, the lighthouse suddenly failed. The trading ship Nymph’s Kiss was dashed on the rocks, and smugglers have already raided the wreck. Somebody has to restore the lighthouse, but the locals are afraid to go near because it shows all the signs of being haunted. Yet there might be more to the story, since there’s something living in the sea caves below…

The Characters come across an ancient wizard's tower. The nearby keep has been reduced to rubble over the ages, but the tower is in perfect condition. It is surrounded by an impenetrable force field that cannot be breached - not even by the ghost of the long-dead wizard, who has been trapped within for centuries. Surely there must be great treasure within this magical abode. But how to get to it?

Since time immemorial, you and your people have toiled in the shadow of the cyclopean ruins. Of mysterious origins and the source of many a superstition, they have always been considered a secret best left unknown by folk of your hamlet. But now something stirs beneath the crumbling blocks. Beastmen howl in the night and your fellow villagers are snatched from their beds. With no heroes to defend you, who will rise to stand against the encircling darkness? The secret of Chaos are yours to unearth but at what cost to sanity or soul? An introductory adventure for the Dungeon Crawl Classics Role Playing Game, Sailors on the Starless Sea pits a mob of 0-level adventurers against legacy of the Chaos Lords and their corrupted hordes. Delving beneath the crumbling ruins, the characters discover ancient crypts, a starless sea, and an ancient ziggurat, where death and treasure await in equal measure!

In Temple of the Dragon Cult, the characters are called in to pursue a dragon that the king’s army was able to wound but not kill. It seems straightforward enough: the army tracked the dragon to its lair, and all the characters have to do is go in and kill it. But this dragon has a devoted cult of dragonblood followers who worship its every breath. Its lair is their temple — and they’ll fight to the death to defend their dragon-god…

A member of your gang awakens in an alleyway with foggy memories of a deal made, a job taken, a partner slain, and a heist planned. They struggle to remember the details, but you all agree that breaking into an abandoned temple should be a simple matter – in and out. Yet the heist is on a collision course with something sinister. What begins as an easy job becomes anything but, as you confront cultists, vengeful spirits, and the servitors of a long-forgotten god. While seeking an easy score, you uncover a plan to strike a blow into the heart of Lankhmar, and no one is safe from the blasphemous plot. A choice needs to be made. Will you stand with the city, or risk letting it descend into chaos? Curse the gods of Lankhmar for their cruel joke that, in the shadowed alleyways of Lankhmar, there is no such thing as a “simple matter.” Officially licensed from the estate of Fritz Leiber.

During a brief stop-over at a wilderness stronghold, a simple trip to a local provisioner reveals foul play! The shop has been broken in, and the shopkeeper is missing. But the place has not been burglarized. The heroes are thrust into an investigation. Clues discovered by the heroes’ hint at larger corruption that festers among the border lands surounding the stronghold. What sinister forces lurk beneath the keep?

Towering obelisks stab the sky. Monstrous knights with blazing lances prowl the night. Huts burn, and entire villages are taken as slaves to be fed darksome pits. The cries of terror and panic give the horrors a name: the Beakmen have come. But you are no mere peasant or serf, cowering the in the dark. You and your companions are reavers, with bloodied blades and spells wrenched from the dreams of demons. You stride through chaos while others flee, turning your steps towards the great stone obelisk, the source of the beakmen and their alien magics. Whether for the cause of justice or merely to acquire these strange blazing weapons for you own, tonight there shall be an accounting: a blazing brand thrust into The Shadow of the Beakmen.

Centuries ago, the glitterdoom came to the dwarves of Steelhand Clan! This divine curse transformed the dwarves into hellish forms with an insatiable greed for gold. Now, a chance encounter breaks open long-sealed gates to unleash the glitterdoom again. Can your adventurers delve into the forgotten halls to confront the subterranean menace? Work together to clear the abandoned mine of it's undead hosts and retrieve what gold and treasures you can.

An ancient cave, defended by ancient death traps and weird arcane seals conceals the antediluvian vault of an archlich whose reign predates recorded history. Undisturbed for untold eons, the vault now stirs thanks to the machinations of cultists who have meddled with secrets best left undisturbed... This module sends the heroes to an ancient cave occupied by cultists dedicated to the Mists of Madness. Defended by ancient death traps and weird arcane seals, the caves conceal an antediluvian vault, the resting place of an archlich whose reign predates recorded history in the Known Realms. Undisturbed for untold eons, now the machinations of the cultists and their eladrin master threaten to awaken the archlich, to dire ends that none can predict.

Murder! Ripples of shock pour through the wee hours of the sleepy fishing shanty of Port Scuttle. An innocent young fishmonger, beloved by the locals, has been brutally murdered in her own shop. Stunned by the grisly act, the typically hardened townsfolk turn to powerful heroes to investigate the gruesome deed. Could the fishmonger’s recent discovery of a massive black pearl be a possible motive? The heroes’ goal is to not only bring the perpetrator to justice, but determine the twisted purpose behind the ghastly act. Concerned townsfolk decry that the evildoer must hang for his or her despicable crime. Yet when the heroes finally track down the murderer, he is already dead by the noose, and the investigation has truly only begun. Clues hint at even darker designs, as an ancient evil stirs to reclaim a once lost malevolent relic. Tackle the challenge of solving the despicable murder of an innocent, and thwarting the diabolical schemes of a powerful brine vampire. Th e adventure is set in and around a small fishing port located on the windswept craggy cliffs of an ocean. The author draws on two inspirations for this adventure: The Pearl, by John Steinbeck, and an unnamed adventure plot by the author’s astonishing wife, Lisa.

Far to the west, beyond civilized lands, lie the Tolomak Islands— volcanic peaks covered in pestilential jungle and bestriding sunken ruins. The legends say the Tolomaks are home to treacherous witches, ferocious cannibals, moon demons, and worse! Wise are those who steer well away from these accursed jungle isles, but not everyone is wise… For the legends also speak of power unimaginable and treasures beyond the limits of mortal avarice. Now, under the light of the triple moons, a band of intrepid adventurers sails ever nearer the islands. With luck, they will escape with a fortune; without it, they may not keep their souls.

Thirteen generations ago, the ambitious first Duke of Magnussen made a fell pact with an unknown power, who asked for but one thing in return: the thirteenth daughter born to a Magnussen duke. Now, generations hence, the daughter of Duke Magnussen XIII is stolen away by a hooded executioner riding a leathery beast. As it wings back across the city walls to drop behind the Duke’s mountain-top keep, all who watch know it alights in the Magnussen family crypts, where the devilish secrets of thirteen generations have been buried and forgotten – until now… This adventure module also includes The Balance Blade, a short level 2 adventure in which a wizard’s patron makes a simple request: travel to another plane to retrieve a legendary blade of neutrality. But once the journey is in motion, the wizard finds that not all is as it seems!

The Lady in Blue, a mysterious figure of cosmic power, enlists a band of simple peasants for a strange task. They are to follow an invisible bridge until they arrive at a hole in the sky – and then jump through. Death awaits all but the bravest, strongest, and luckiest, but the Lady offers a reward beyond all the riches of the world: the chance to change the very stars these peasants were born under, and thus change their destiny.

After arriving at a seemingly abandoned trading post, the heroes discover to their horror that all the inhabitants have been transformed into black trees! Upon further investigation, they find clues that lead them to the hidden lair of Nockmort, a treant gone bad. Nockmort has been transformed by the strange radiation of a meteorite he discovered, and now he is a terrible force of evil. The characters must enter his sunless garden to save the town. And along the way they just might discover fabulous treasure...