The Army of the High British strikes Belgarry—Imperia—again and again, dealing defeat after defeat. And to stop them, a decision is made to cut the sea supply routes along which reinforcements and ammunition for new rifles are constantly arriving. But as if that isn’t enough, at sea the newest steamships of the High British successfully repel the attacks of the sail fleets of the Belgarry Empire. And it just so happens that it is Regis Aurek who must remember the impossible tactics of a naval battle, use the remains of the sail fleet, and finally get a chance for a counterattack…