Pathfinder Adventure Path: Giantslayer Part 4 - Ice Tomb of the Giant Queen

The heroes come to a frost giant village that serves as a training camp, led by a frost giant graveknight who issues orders from within an icy crypt. As the heroes engage in guerrilla tactics to weaken the army of giants, they ally with a red dragon who is attempting to infiltrate the giant camp for her own insidious purposes.