Eclipse of the Crescent Moon (Hungarian: Egri csillagok lit. "Stars of Eger") is a historical novel by the Hungarian writer Géza Gárdonyi. It was first published in 1899 and is one of the most popular and widely recognized novels in Hungary.
The story is set in the first half of the 16th century and covers a period of roughly 25 years. The main historical events that are addressed are the bloodless occupation of Buda, the seat of the Hungarian kings, in 1541, and the 1552 Siege of Eger (now in Northern Hungary) by the Turks that forms the major topic of the novel. The story also addresses some other historical topics like the impact of the Reformation, the discord between Hungarians and the Holy Roman Emperor, as well as many themes of general import like mercy, filial and marital love, friendship, trust and truthfulness.
Most characters of the book are historical figures, notably the hero Gergely Bornemissza himself, though most of them have been strongly romanticized according to the author's intentions. Gergely's life story in the novel is almost fully invented, except for his role as an officer during the siege of Eger. Éva Cecey, Gergely's love and later wife, is fictional; her portrayal in the novel is based on Gárdonyi's "ideal woman".
The novel consists of five parts that tell the life of Gergely Bornemissza from the age of eight until the year 1552, when he is in his early thirties.
I. Gergely is a half-orphan and son of a poor woman, while Éva Cecey is the daughter of a landowner. They are nevertheless playmates. While playing in the woods, the two children are captured by a Turk named Jumurdzsák and have to join a trek of prisoners. Due to the cunning of little Gergely, the two children are able to escape and later also to free the other prisoners. Gergely's mother dies in a raid by the Turks, but the little boy is adopted as a foster son by the rich aristocrat Bálint Török, where he gets a good education.
II. Several years later, Gergely has to experience that Buda is captured by the Turks through deceit and his foster father Bálint Török is led away prisoner. Gergely meets Éva again, who has become a pretty young girl.