Pathfinder Adventure Path: Giantslayer Part 1 - Battle of Bloodmarch Hill

In the human town of Trunau, a beleaguered settlement surrounded by the brutal orcs of the Hold of Belkzen, the heroes must investigate a mysterious death. Before they uncover the truth, however, Trunau comes under attack by an orc army, and the heroes must help defend it, only to discover the real reasons behind both the murder and the orc raid.