A continuation of the story "Oko proroka", which ended with the sale of a mysterious jewel and the purchase by the Bystry family of an inn near Tarnów. Unfortunately, times in 17th-century Poland are troubled, and a curse still hangs over Hanusz and his father. Driven by an adventurous nature, Hanusz Bystry sets out for the Balkans to free his friend, Semen Berdychka, captured by the Turks while searching for his father, who has been taken into the yasir.