The deep waters of the Hellmouth Gulf have long concealed ancient mysteries, both wondrous and terrible. But these secrets have been submerged for too long, and the remote coastal village of Blackcove has accidentally awoken a slumbering horror from a bygone age. Strange creatures now venture from beneath the waves to steal townsfolk away in the dark of night.

A desperate refugee emerges from the earth's depths in shadow-cloaked Nidal with an urgent pleas. A new faction in the subterranean dark folk city of Lyrudrada -- a wicked cult called the Reborn -- seeks a fabled artifact called the Cradle of Night. Vanished demigods of the Shadow Plane once used this artifact to craft the elusive caligni race, and the Reborn want to use it to shroud the world in darkness once more. Cursed with the stain of shadow, the heroes must battle their way through the tomb of an ancient horselord chieftain before descending to Lyrudrada. Plots and schemes run rampant in this city riven with political upheavals and back-alley bloodshed, and the heroes must collect allies and information to confront the Reborn in their fortified fane. With the mysterious masters of the caligni race arrayed against them, can the heroes hope to shed their shadowy curse and claim the Cradle of Night?

Panic grips Absalom when a huge crystalline sailing vessel appears suddenly in the harbor. Identified as the King Xeros of Old Azlant, the ship presents a great opportunity for the Pathfinder Society. You and your fellow adventurers are summoned by Venture-Captain Adril Hestram and dropped aboard the King Xeros to explore it and report back. Only, what you find isn't an empty vessel, but a sinister ship with a vile intent. Difficult and unforgiving scenario, typical of Greg A. Vaughan. Contains lots of monsters from the Ethereal Plane and a mysterious setting. If playing under Pathfinder Society rules, a six-player party is recommended, rather than the standard four for early PFS seasons. Using Pathfinder RPG versions of monsters reduces the lethality, as the constructs are no longer immune to critical hits and sneak attack damage, and the Xill no longer automatically bite for paralysis on a maintained grapple.

Part 2 of the "The Devil We Know" campaign arc. Cassomir's Locker is a Pathfinder Society Scenario designed for 1st to 7th level characters (Tiers: 1–2, 3–4, and 6–7). The Pathfinder Society dispatches you to the catacombs called Cassomir's Locker to find the source of a rat cult breeding monstrous vermin. After clearing Cassomir's dank sewers and delving into the dirty dungeons below, will you find the artifact that powers Cassomir's Locker or bring about the destruction of Taldor's most important port?

The winter portal has closed, but the heroes now find themselves trapped in the frozen land of lrrisen with an urgent quest-to find Baba Yaga! In order to track down the missing Queen of Witches, the heroes must brave the monster-infested capital city ofWhitethrone, where Baba Yaga's Dancin9 Hut has been captured and put on display. Will possession of the miraculous artifact lead them to the Witch Queen, or will they die a cold death at the hands of lrrisen's White Witches ?

The adventurers now have their own island and port, but they’ll need more than one ship to defend it. When a past rival sends a fleet to attack them, they’re forced to pull out all the stops to defend their island home, scouring the harbors and docks of the Shackles in order to recruit more ships and crews to their flag. Yet when they sail to the attacker’s own island to get their revenge, the adventurers discover a traitor—one whose betrayal threatens not only their own fleet, but the very islands of the Shackles themselves. This volume of Pathfinder Adventure Path includes: • “The Price of Infamy,” a Pathfinder RPG adventure for 11th-level characters, by Tim Hitchcock. • Fleet battle rules that allow players to stand as admirals and commodores directing their own armadas against enemy fleets in large-scale naval warfare, by James Jacobs. • A glimpse behind the gray veil of Norgorber, Golarion’s most secretive deity, by Sean K Reynolds. • Lock-breakers and sea-devils in the Pathfinder’s Journal, by Robin D. Laws. • Four new monsters, by Savannah Broadway, Ryan Costello, Mark Moreland, and Sean K Reynolds.

The Mummy's Mask Adventure Path begins with "The Half-Dead City," an exciting new adventure in the pyramid-laden realm of Osirion, Land of Pharaohs! In the city of Wati, the church of Pharasma holds a lottery allowing explorers to delve the tombs of the city's vast necropolis in search of the nation's lost glories. In the course of investigating dusty tombs and fighting their ancient guardians and devious traps, the heroes encounter a group of rival adventurers intent on keeping one tomb's treasures for themselves. At the same time, the heroes learn that a dangerous artifact has been stolen from the tomb. Can the adventurers defeat their rivals, or will they fall to the undead defenders of the city's necropolis?

The sleepy town of Karpad in shadow-haunted Nidal has long been overseen by the Boroi family, and until a few weeks ago, the citizens under Baron Stepan Boroi's rule have lived uneventful lives of relative peace. Recently, however, the outbreak of a virulent and fatal disease and a number of mysterious disappearances have left the people of Karpad paranoid and fearful. Even Baron Stepan has been acting strangely, and now the tenuous balance of racial tensions between Karpad's human and fetchling populations stands on the verge of collapsing into total anarchy.

When strange reports of misty undead spread through Absalom, you and your fellow Pathfinders are dispatched to the half-drowned district of Puddles. Notoriously rough, the drooling addicts, flesh panderers, and quick-handed knifers of Puddles are the least of your worries. The night's tide brings with it an ancient armada of some long-forgotten war and you are the only thing between their mist-shrouded ghost fleet and Absalom's utter oblivion.

Part 5 of the Carrion Crown Adventure Path takes place in Ustalav's capital Caliphas. The heroes are in the city to follow the trail of evidence left by the neromantic cult The Whispering Way and strengthen their bonds with the mysterious Order of the Palantine Eye. Whilst in the city, they uncover a string of murders. When they discover that all the victims were vampires, they descend into the underground vampire city and have the possibility to form a tentative alliance with the vampire clans. If they help solve the murders, the vampire lord promises to help them on their quest. What role do the deadly necromancers have in the undead murders plaguing Caliphas? What secret grudge exists between the cult and the rulers of the night? And will the heroes be able to save the capital without sacrificing their very souls? This book includes: - “Ashes at Dawn,” a Pathfinder RPG adventure for 11th-level characters, by Neil Spicer - A gazetteer of fog-haunted Caliphas, the mysterious and deadly capital of Ustalav, by F. Wesley Schneider - A terrifying look into the blasphemous church of Urgathoa, goddess of gluttony, disease, and the undead, by Sean K Reynolds - Laurel Cylphra’s attempt to steal a soul stealer in the Pathfinder’s Journal, by F. Wesley Schneider - Six new monsters by Crystal Frasier, Patrick Renie, and Sean K Reynolds

Founded by a famous dragonslayer, the small town of Belhaim has become a sleepy rural community just off the beaten path, a settlement where everyone knows everyone and strangers are the talk of the town. But when Belhaim’s peace and quiet is shattered by the sudden collapse of the last standing tower of its founder’s castle, things quickly bloom out of control. Why were there bodies of kobolds amid the rubble? What’s the sinister secret behind the strange sounds of flapping wings in the night? And what’s happened to local wizard Balthus Hunclay, who’s not answering knocks on his door? The collapsed tower had long been an eyesore to the cantankerous old man—could he have had something to do with its destruction? And what of the rumors of strange stirrings in nearby Dragonfen? Has Belhaim’s ancient draconic nemesis returned?

Alkenstar, City of Smog, is a bastion of civilization in the magic-warped region known as the Mana Wastes. Its ingenious citizens survive in the treacherous Spellscar Desert with the help of canny inventions like guns and clockwork automatons, but now their construct protectors have begun to run amok within the city. It falls to the PCs to venture beyond the city walls to find the source of their strange behavior.

When the Pathfinder-obsessed daughter of one Qadira's most powerful trade princes goes missing trying to impress the Society, her father angrily demands the Pathfinders track her down or face expulsion from Katheer. Tracking the missing princess leads you to an underground complex filled with traps, tricks, and a creature so powerful, she's lived for a thousand years. Can you save the princess and uncover the power of the Eternal Obelisk?

Volunteers are needed to escort the body of a deceased venture-captain across the parched Qadiran desert to Katheer. The Silken Caravan offers passage, hauling exotic treasures across the perilous sea of sands. You'll brave bandits, spies, and unwelcome mourners hell-bent on paying respects to your dead companion. Worse still, the caravan's mistress, a satin-swathed Qadiran princess, has designs of her own on you and your cargo.

A deadly curse known as the Feast of Dust spreads rapidly through the Meraz Desert, driving its victims mad with hunger and a burning desire to flee into the sands. To find the source of this strange affliction, the heroes must investigate the plagued city of Dimayen, challenging fearsome gnoll tribes, nihilistic daemons, and the walking dead to discover the secret of a long-forgotten evil—a powerful daemon harbinger called the Jackal Prince of Famine. Despite the efforts of an ancient secret society, this twisted, unholy monstrosity walks the world again, threatening to spread his apocalyptic curse across all of Golarion! To stop the demigod's return, the heroes must uncover his three vile siblings, now bound within malevolent artifacts, and use their combined powers to stop the Jackal Prince before the entire world feels his corrupting touch.

Her Infernal Majestrix Queen Abrogail II of Cheliax summons her agents to the city of Egorian to address the current crisis with the Glorious Reclamation. Upon arriving in the bustling capital, the adventurers find themselves swept up in the cutthroat politics of the imperial court. To impress the queen and secure a royal audience, the wicked characters must scour the City of Thorns to root out and eradicate a secret organization that works to free halfling slaves. But to truly earn Queen Abrogail's trust, the adventurers must perform a sacrifice for the queen to renew House Thrune's contract with Hell, and there are many—both within the court and without—who wish to see the monarch dethroned.

A Runelord Rises! The Rise of the Runelords Adventure Path concludes! The Runelord of Greed, Karzoug the Claimer, stirs in the legendary city of Xin-Shalast. There are more forces than an ancient evil wizard at work in this remote corner of Golarion, a place where the boundaries between reality and nightmare are unnaturally thin. Karzoug's minions have awakened as well, among them giants and dragons and devils and worse. Could there be an even deeper evil poised to emerge from the darkness at the dawn of time? Can the Rise of the Runelords be stopped?

A Pathfinder Roleplaying Game adventure for 15th-level characters, this volume of Pathfinder Adventure Path is part 6 of 6 of the Kingmaker Adventure Path, in which the heroes win and defend a small kingdom from threats foreign and domestic. PCs should advance to 17th level by the end of this adventure. This adventure begins after the War of the River Kings has ended—the PCs, be they the war’s victors or losers, are faced with the task of rebuilding their kingdom or perhaps helping to rebuild Pitax. Yet soon after the war is over, a new peril strikes the region as strange monsters and violent bursts of rapid vegetation growth and bizarre weather plagues the Stolen Lands. At the same time, the PCs learn that one of the treasures discovered in Pitax’s House is a nascent vorpal sword, a weapon of immense power, and as the strange weather and blooms of life and monstrous incursions increase, so does this sword’s intelligence and power. The PCs soon learn that their kingdom faces an invasion, but this time not from the physical world. Some fell force from the legendary First World is attempting to expand into this world, and when the PCs begin to fight back against these verdant blooms, they discover that it’s possible to step from this world into the First World realm of Thousandbreaths. There, the PCs face powerful new threats unlike anything they’ve seen before, and learn that the dangers facing their kingdom are even greater than they feared, for the fey ruler of Thousandbreaths is about to absorb the Stolen Lands into a bauble for her own purposes, an act that would scour clean the region and leave behind nothing but a wasteland.If the PCs hope to save their new kingdom from this threat, they must combat the nymph queen Nyrissa both by stopping the various blooms in their kingdom and by traveling into Thousandbreaths itself to confront the dangerously insane nymph.

Impossible Experiments is a series of adventures, each spanning 1-2 levels. Each volume can be run individually or combined into an ongoing series. This volume establishes the premise of this series… When the wizard-king Nex retreated into his Refuge over 4,000 years ago, speculation ran rampant as to what he would do in this space. At first, many assumed that he was restrategizing for the war with Geb, but as the decades and centuries ground on, wilder hypotheses were offered. One explanation claimed that Nex was experimenting to develop a new generation of magical warriors, spies, and minions whose presence would overwhelmingly tip the scales of war against Geb, and likely other nations to follow. In recent years, the gates to the Refuge of Nex have opened, and strange creatures have emerged. Indeed, these creatures are prototypes that Nex is evaluating. Near the iruxi-founded town of Gitna, one of Nex’s first prototypes has emerged and begun to claim victims. The guard has been raised in Gitna, and the heroes are now called to fulfill their oath to defend the town by helping one of its behir guardians, recently injured in his own fight... This adventure includes two archetypes, a versatile heritage, backgrounds, and items you can offer to your players to make this adventure your own!

Decades ago, witnesses reported a fearsome cryptid outside of the quiet River Kingdoms town of Shimmerford. Dubbed the Mosquito Witch, it was rarely seen since and quickly became a beloved local legend that the town celebrates and promotes to attract visitors. But when recent attacks began savaging livestock and townsfolk alike, many have started believing the Mosquito Witch was real all along. The PCs travel to Shimmerford to unravel the cryptid mystery, but might they just become the witch's next victim?