Józef Ignacy Kraszewski was a Polish writer, historian and journalist who produced more than 200 novels and 150 novellas, short stories, and art reviews (including painters, e.g., Michał Kulesza). He is best known for his epic series on the history of Poland, comprising twenty-nine novels in seventy-nine parts.
As a novelist writing about Polish history, Kraszewski is generally regarded as second only to Henryk Sienkiewicz.
The novel covers the events of 1409-1411 in Poland including events of the great war against the Teutonic Order. The author describes a great defeat of the Order at Grunwald, events following the battle, which led to an unsuccessful siege of the Knights headquarters at Malbork, and another defeat of the Order at Koronowo, later the same year. Delay in leaving the battle field, which enabled the Order to prepare its defences at Malbork, resulted in another five hundred years of Teutonic rule in those lands.
The story begins in Malbork, where Father Jan from Zabór arrives with a pilgrimage, but is shortly after accused by the knights to be engaged in espionage. The growing tension between the Teutonic Order and Poland and Lithuania leads to the beginning of the war. With the development of the action, the characters of the novel are witnesses and participants in subsequent events of the great war and its clashes, including the victorious battle of Grunwald and subsequent events ending with the failed siege of Malbork.
The main character of the novel is the young girl Ofka Noskówna, the daughter of a Polish father and German mother from Toruń, who as a spy in the service of the Teutonic Knights, enters the entourage of King Jagiełło. She zealously supports the forces of the Order fighting against Poles, including joining dressed as a young boy services of a knight Andrzej Brochocki from Brochocice. After the Grunwald battle, Brochocki encounters a prisoner in the Polish German camp – Kuno Dienheima, whom he takes as his prisoner. Dienheima falls in love with Ofka and performs bold acts to gain her favour. Ofka, merely treats him as a tool for fulfilling her insidious intentions. Ultimately, his hopes are shattered by the fact that Ofka, abandoning his home and mother, as a nun, completely puts herself in the service of the Teutonic Knights. However, when he finally arrives at Brochocki's homestead as a prisoner, he is released by the knightly word. Dienheim finds in the Polish family not only a kind reception, but also love from one of the daughters.