Pathfinder Adventure Path – Assault on Longshadow

For more than a hundred years, the demon-infested Worldwound has warred against humanity, its Abyssal armies clashing with crusaders, barbarians, mercenaries, and heroes along the border of lost Sarkoris. But when one of the magical wardstones that helps hedge the demons into their savage realm is sabotaged, the crusader city of Kenabres is attacked and devastated by the demonic hordes.