Venture-Captain Bjersig Torrsen calls the PCs north to the town of Iceferry in the frigid Land of the Linnorm Kings. There, Bjersig informs the Pathfinders that he has a request from the family of a storied and long-dead Linnorm King. The family's patriarch, the warrior Hlavard Grenskuldr, appears to have perished in a shipwreck while wearing the family's heirloom, the gorget of the Linnorm King Grehunde the Sunchaser. For one hundred generations the family has passed this heirloom down from parent to child, until Hlavard sought to wear it on a journey to Valenhall as Grehunde herself had intended to do before perishing with the task unfinished. Unwilling to leave the relic to rust away in a watery grave, Hlavard's family has requested the Pathfinder Society's assistance in locating the shipwreck and retrieving the family treasure.

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 black clouds of war are gathering, and evil flocks to their thundering call! While seeking the legendary expertise of a cloud giant skymage, the PCs interrupt an attack on his lair by well-armed and magically augmented hill giants. To obtain the cloud giant's arcane knowledge, the PCs must seek out and eliminate the source of the hill giant threat, yet the brutes have little information other than the name of their employer—a mysterious giant calling herself the Storm Queen, whose anger and hatred have transformed over the course of years into a murderous plan that could cost hundreds of innocent lives.

For years, the knights of Mendev have held back the evil locked inside the Worldwound, a vast, demon-tainted landscape. Every few years, they anoint a new protector, a sacred guardian charged with pitting his will against the teeming hordes bent on devouring the very souls of the living. This year, something has gone horribly wrong, and now a bloodthirsty demonic army has overrun the ancient fortress, and threatens to pour into the surrounding countryside.

The Hell's Vengeance Adventure Path begins with "The Hellfire Compact," an exciting new adventure in which the players take the roles of evil characters in the diabolical empire of Cheliax! A paladin of Iomedae and knight-errant of the Glorious Reclamation comes to the town of Longacre, inspiring the citizens to join the uprising against the Thrice-Damned House of Thrune. First as amoral mercenaries, then as retainers of the wicked archbaron of Longacre, the evil adventurers must move quickly to put down the insurgency and keep the town from falling to the knight's rebellion.

Appearing only once a century in the western deserts of Katapesh, the Asmodeus Mirage has plagued Golarion for thousands of years. Powered by a crystal bone devil skeleton and legendary for trapping unwary travelers, the Society has a vested interest in studying and cataloging the source of its power. You have been sent deep into the deserts of northern Garund to enter the Mirage—but there's a catch! The Mirage only exists on Golarion for 24 hours every 100 years. Get trapped in the Mirage, and you may never see Golarion again.

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 1 of the "The Devil We Know" campaign arc. Shipyard Rats is a Pathfinder Society Scenario designed for 1st to 7th level characters (Tiers: 1–2, 3–4, and 6–7). When simultaneous kidnappings of Pathfinder and Aspis Consortium agents rock Cassomir's Imperial Naval Shipyards, the Society orders you to join forces with hated Aspis agents to solve the mystery. Can you work together with the enemies of the Society to uncover the source of the kidnappings, or will you perish in the shipyards of Cassomir?

Venture-Captain Rashmivati Melipdra has called for a group of Pathfinders to travel to Jalmeray and assist her in retrieving a stolen relic. A former member of the Monastery of Unblinking Flame, Melipdra was in the process of negotiating with the monastery for custody of some of their most ancient and historically significant training devices. Before the deal could be completed, a rogue monk stole one of the relics and fled the monastery for the island of Veedesha. There, the monk seeks to use her training and the stolen devices to create a new competing monastery. As the PCs travel to a lawless island controlled by bandits and martial artists, they must find a way to retrieve the stolen goods from the new master of the Monastery of Unforgiving Fire.

Everyone in the fishing town of Ilsurian is excited when the legendary Umbra Carnival rolls into town—even if the show is run by members of the much-maligned Varisian ethnic group. With strange and exotic beasts, scandalous performances, games of chance, and all the other fun of a traveling fair, who could resist such an opportunity for entertainment?

Part of a Numerian relic once thought scattered to the winds has found its way back to the savage land of super-science, and the Pathfinder Society must track down the component if they are to unlock the device’s secrets. Clues point to the economic hub Chesed, where only the descendants of a shattered clan can share where their revered ancestor buried the strange artifact. Can the PCs brave the troubled city, evade the vigilant agents of the Technic League, and survive a trip into the Numerian wastes? Content in “Returned to Sky” contributes directly to the Year of the Sky Key metaplot as well as the ongoing storyline of the Exchange, Liberty’s Edge, and Silver Crusade factions.

The last remains of a sage from an age long past rests high atop the snow-covered tips of the Fog Peaks in Southern Galt and the Society wants his bones in order to study them and learn from them. They've sent you into a wintry wilderness of primordial beastmen and snow creatures not seen below the snow line to do just that. With the Aspis Consortium also seeking the bones, the race is on to beat them to the top and, once the bones are recovered, to make it back down alive.

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?

Hidden in the remote southern range of the World’s Edge Mountains lies a mysterious necropolis known in legend as the Tomb of the Iron Medusa. When the last heir of the dungeon’s long-dead noble builders hires the PCs to explore the forlorn and deadly site in search of evidence that may clear his family name, the intrepid heroes soon find themselves in over their heads. For the Tomb of the Iron Medusa does not give up its secrets lightly, and the dangerous truths that lie within its ancient, trap-laden crypts may have been hidden for very good reasons indeed.

For decades, the tiny village of Ravenmoor has existed quietly on the upper reaches of the Lampblack River. Linked to the outside world only by an overgrown, mostly forgotten trail, the villagers are comfortable with their isolation. Certainly, the lack of a village inn, the oppressive humidity, and the bug-infested moors and swamps that surround the village do little to encourage visitors. When a clerk in the city of Magnimar discovers that, due to a clerical error, the village of Ravenmoor hasn’t paid taxes in years, a tax collector is sent to the distant community to settle accounts with its mayor. When the tax collector fails to return, however, a group of adventurers must travel to the town during its Founders’ Feast celebration to investigate his disappearance.

A hundred miles off the Chelish coast lies the remote island of Deepmar, where the House of Thrune sends prisoners to work in crystal mines, wresting valuable spell components from the depths of the earth. A month ago, all contact with the penal colony ceased, and now someone must discover what mysterious fate has befallen the prisoners and guards of this isolated mining operation.

The city of Westcrown is dying. Since being stripped of its station as the capital of Cheliax, the wealth and prestige of the city has gradually slipped away, leaving the desperate people to fend for themselves in a city beset by criminals, a corrupt nobility, and a shadowy curse. Can the PCs fight back against champions of both the law and the criminal world? This volume of Pathfinder Adventure Path launches the Council of Thieves Adventure Path, and includes: - "The Bastards of Erebus," a Pathfinder RPG adventure for 1st-level characters, by Sean K Reynolds - A gazetteer of Westcrown, the shadow-haunted City of Twilight, by Steven Schend - An investigation into the lives of tieflings, along with hundreds of fiendish variations, by Amber Scott - A deadly mystery of nobility and intrigue for Pathfinder Varian Jeggare and his tiefling bodyguard Radovan in a new series of the Pathfinder's Jounal, by Dave Gross - Six terrifying new monsters by Mike Ferguson, Sean K Reynolds, and F. Wesley Schneider

Razmir the Living God used his power to conquer an entire country; now he and his mask-wearing priests enforce peace and generosity—though some say their tools are intimidation and fear. His worshipers preach charity and self-worth, blaming rival faiths for crafting lies about the glories of the Living God. Now the cult has come to the city of Tamran, feeding the poor and promising happiness to those who serve Razmir. Yet ugly rumors persist of bribery, extortion, and strange disappearances associated with the new temple. Are these stories just gossip and lies spread by rival faiths? Or is the church of the Living God more than it seems? Part Two of the Price of Immortality trilogy.

While the lives of most Pathfinder Society field agents is brutal and short, some rise to prominence, drawing the attention of the Decemvirate. These lucky agents are invited to a little known siege castle outside Absalom where they are asked to test their mettle. Those who succeed get their choice of prestigious missions, whereas those who fail are rarely heard from again. The players are run through an arena-style dungeon, faced with monsters, traps, and puzzles.

On the trail of Baba Yaga, the heroes find themselves transported to the barbaric land of lobaria on the far-off continent of Casmaron. They must explore three ancient, mystically linked dungeons in search of more clues to the fate of the Queen of Witches, while contending with savage centaurs and demon-worshiping frost giants who seek to claim Baba Yaga's secrets for themselves.