Humanity rolled back into the Middle Ages, and the reason for this was not a world war, but an economic crisis, not even a crisis - the Collapse. New feudal states, created by the most determined and enterprising, are struggling with all their might for spheres of influence, for strengthening their position on a changed planet. In this “neo-feudalism” there are no knightly cavalry and carrier pigeons, computers and the most diverse weapons of mass destruction have not disappeared anywhere - but the world has become unpredictable. A new structure that arose in place of the United States - United Mankind - is growing and strengthening, it is coveting foreign territories of the Celestial Empire, the tanks of Heinrich von Scharnhorst Ironside are marching across Europe, the Vikings of Eirik Sigurdsson are robbing the northern coast, they are fighting off the unfriendly neighbors of the principality that Russia has become. And in this In the new world there is a fierce struggle for oil - “black gold”, which is hidden by the cold waters of the Arctic Ocean...