Reign of Winter
Reign of Winter is the twelfth campaign to grace the pages of the Pathfinder Adventure Path series, and ran from February 2013 through to July 2013. It is set in the frozen nation of Irrisen and deals with the return of Baba Yaga.
It has been a century since the immortal witch Baba Yaga last visited the world, and the hour draws nigh for her return. But when she fails to appear in the frozen realm of Irrisen to usher in its newest ruler, pockets of winter begin to grow throughout the Inner Sea. After 1,400 years of perpetual winter, the icy curse of Irrisen is spreading! What links do these strange blizzards and swaths of wintry landscapes have with Irrisen, and is there any truth to the growing rumors that the Witch Queen Elvanna has taken full control of the realm? Can her plans for the Inner Sea be thwarted, or will the Reign of Winter engulf the world?
ChaptersWitch Queen Baba Yaga returns to the nation of Irrisen to place a new daughter on the throne, but this time, something has gone wrong. Far to the south, an unseasonable winter cloaks the forest near the village of Heldren with summer snows. When the heroes venture into the wood in search of a missing noblewoman, they discover a magical portal to the frozen land of Irrisen, whose magical winter will soon engulf all of Golarion unless they can discover the fate of the otherworldly witch Baba Yaga, a quest that will take them through snowbound Irrisen to even stranger lands beyond.
Whitethrone, where Baba Yaga's Dancing 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 Irrisen's White Witches?
Iobaria in far-off Casmaron. The heroes must explore three ancient, mystically linked dungeons in search of more clues to the fate of the Queen of Witches, but they must also contend with savage centaurs and demon-worshiping frost giants who seek to claim Baba Yaga's secrets for themselves.
Triaxus, seventh world in Golarion's solar system, now in the middle of its decades-long winter. The heroes soon find themselves embroiled in a conflict between the dragonriders of the Skyfire Mandate and the barbarian armies of a white dragon warlord in their hunt for more clues to the whereabouts of Baba Yaga. Will the PCs ally with one of the warring factions to get the information they need, or will their quest come to an end on a distant, alien world?
Grigori Rasputin. Can the heroes kill the "Mad Monk," who has already cheated death once before, and free Baba Yaga, or will they too fall before the horrors of modern war?