Pathfinder Adventure Path: Ironfang Invasion Part 2 of 6-Fangs of War

With their colony of survivors safe for the moment, the heroes must scour the wilderness of the Fangwood for resources, and make contact with anyone who can help them strike back against the invading Ironfang Legion. But as they push into the wilds, all signs point to the legendary Chernasardo Rangers being wiped out by the black dragon Ibzairiak.