"The Green Book; or, Freedom under the snow" is an exciting novel by the outstanding Hungarian writer Mor Jokai. The book tells a story about great love for the native land and unbreakable faith in one's own ideals. The main character finds himself in the middle of a difficult political situation, where courage, loyalty and faith become the main force. The author skilfully uses historical facts and cultural features to create a picturesque image of Hungarian society and its turbulent events. "The Green Book; or, Freedom under the snow" is not only an interesting adventure, but also a deep thought about the struggle for freedom and human values, which fascinates with its emotional richness and philosophical undertones.