According to Hetman Polubotko's will, the Bank of England has kept a golden treasure from the 18th century, which the hetman's descendant can receive only if Ukraine becomes an independent state. This legend has fascinated many researchers and adventurers for centuries. The author of the novel offers her own version of this story. A probable descendant of Hetman Polubotko, he claims the inheritance and turns to Kate, an English lawyer of Ukrainian descent, for legal assistance. Inheritance can change the balance of power between the Russian Federation and independent Ukraine, and will have serious consequences for the Bank of England, so the actions of a lawyer attract the attention of intelligence services. Taras, a Russian security officer, is tasked with preventing inheritance claims. The action of the novel takes place in Great Britain, Russia, Argentina, Ukraine. The plot is structured in such a way that the situation is considered from the point of view of both Kate and Taras. The author guides the reader through the complex mechanisms of tracking archival documents, the fact and fiction in the novel are carefully intertwined: the legend of the Cossack treasure, the facts of previous attempts by members of the Polubotko family to claim Cossack gold, the history of repression by Soviet authorities against real family members author, private diaries, archival documents ...