Just because the battle was won does not mean the war is over. Aein, Lars, and Finn are sent back to the swamps to protect the one object which may save the kingdom. But in the recent turmoil, the border has been left unguarded and nightmarish creatures are slipping through. There is a reason why two people must always be there to hold the boundary, a lesson which Aein, Lars, and Finn are about to learn.