What was the introduction of Qian Zhongshu's work, Fortress Besieged?

Fortress Besieged was first published in modern China in 1934. The novel was set in Beijing, China in the 1920s. It narrated the story of a besieged marriage. It described the love and marriage dilemma between the protagonist Fang Hongjian and his wife Su Wenwan, as well as their psychological game inside and outside the besieged city. The novel became a classic of modern Chinese novels with humorous language, profound insight into human nature and criticism of social reality. The novel was also translated into many languages and became very popular around the world.