The consciousness of our contemporary Evgeniy Kashirsky, who died during a terrorist attack in a resort town in Spain, by the will of the Creator is transferred to a distant ancestor 333 years ago. And a very young Cossack of the Zaporozhian Army, he is also a scion of an ancient princely family, Mikhail Kashirsky, merged in consciousness with his distant descendant. How will he manage knowledge unthinkable for this era in the field of scientific and technological progress, financial, economic and socio-political development of society? And do you need to change anything in this life? Or maybe it’s better to conquer some island in Oceania, surround yourself with a chocolate harem, and live comfortably? And all the other Orthodox brothers - what about them?! Let them continue to live in ignorance and savagery?! No! The reader will see confrontations with enemies and foes, fierce battles with Polish armored cavalry on land, battles with Barbary pirates at sea and other fascinating adventures of the protagonist and his crew on the way to finding a place in the sun.