Claim the Castle! Fangwood Keep has changed hands innumerabletimes since its founding decades ago on the border between the warring nationsof Molthune and Nirmathas. Over the years, both countries have sacrificed moneyand soldiers in an effort to control the fortress along the Marideth Rivervalley, both for its tactical location and for its secure defenses. Recently,however, the battles around Fangwood Keep have dwindled to a trickle asNirmathas has firmly rooted itself in the surrounding valley, allowing the tideof war to shift elsewhere and peace to settle at last over FangwoodKeep. This respite was shattered by the arrival of a renegade Molthunicommander named Pavo Vos. Obsessed with capturing Fangwood Keep and unravelingthe fortress's mysteries, the defecting lieutenant unlawfully used his platoonto secure the castle, much to the ire of both the Molthuni and Nirmathigovernments. Now the task of bringing Vos to justice and reclaiming FangwoodKeep for Nirmathas lies solely in the PCs' able hands. Fangwood Keepis an adventure of infiltration, investigation, and dungeon exploration for4th-level characters, written for the Pathfinder Roleplaying Game and compatiblewith the 3.5 edition of the world's oldest RPG. This volume also contains agazetteer of the Marideth River valley and a brand-new monster from the bizarrerealm of the fey, both of which can easily be integrated into any campaignsetting.