After finding and persuading the Northern General Bai Yan to come to Shanmen Fortress for his missing gold, Nic and Feng Guo discover Zeng has been busy--and has occupied the town, terrorizing the inhabitants and searching for anyone they can threaten to gain access to the fortress. With the fortress soldiers trapped by the siege and the main force of Bai Yan's troops still far away, Nic must find a way to protect the town, free the fortress, and defeat Zeng's forces before it's too late. So the Red Wolf introduces a new demon way of war ... sabotage.