The squadron of the young Prince Kashirsky and his invading army are ready to expand into the unknown wild lands of South Africa and the west coast of North America. The ships are loaded with peasant migrants from the kingdoms of Moscow and Zaporozhye, as well as former slaves from the captured and plundered capital of the Maghreb pirates. And now a caravan of emerald sails flies over the waters of three oceans. The path of our heroes will not be easy; they will face storms and typhoons, sea battles and boardings, a bloody confrontation with African black cannibals and American red-skinned savages. But with the help of a kind word and a revolver, they will be able to lay the foundation of a new power. The Principality of Slavia will finally take its place in the sun.