A seemingly endless war rages between the expansionist nation of Molthune and its fiercely independent neighbor Nirmathas. To Molthune, it's a civil war to preserve its legacy of unification; to Nirmathas, a war to throw off tyrannical occupation. Ancient ruins, headstrong leaders, and longstanding feuds are present on both sides—but the similarities end there. Cosmopolitan and wealthy, Molthune grasps at glory and power as it struggles for recognition and security. Rugged and resourceful, Nirmathas operates less as a nation and more as a free frontier, bound together only in its resistance to outside control. Nirmathas and its conflict with Molthune provide the setting for the Ironfang Invasion Adventure Path, making this comprehensive sourcebook a perfect supplement for that campaign.