The eighteenth novel (twenty-fifth book) of the “Eternal Captain” series. Mid-ninth century. The Vikings appeared on the historical scene. At first they terrorized Northern Europe, but over time they reached the Mediterranean, Central Asia, Iceland, Greenland and even America. There are also their settlements in the north of the future Russia, where the Vikings are gradually seizing new territories, including conquering them from the Khazar Kaganate. Our hero finds himself in the thick of these events.