"Heavenly Sword and Dragon Slaying Sabre" is a classic Chinese martial arts novel written by Louis Cha, also known as Jin Yong. The story is set during the Song Dynasty and follows the adventures of several characters as they seek two legendary weapons: the Heavenly Sword and the Dragon Slaying Sabre. These weapons are believed to grant immense power and influence over the martial arts world. The novel explores themes of loyalty, betrayal, and the quest for power. It features a rich cast of characters, including Zhang Wuji, the protagonist, who navigates complex relationships and moral dilemmas. The narrative intertwines personal struggles with broader historical events, making it a significant work in the genre of Wuxia literature.