"The Keys of the Kingdom" is a novel written by A. J. Cronin in 1941. It tells the story of Father Francis Chisholm, a Scottish priest who is sent to a remote mission in China. The narrative explores his struggles, faith, and dedication to his parishioners amidst various challenges. The book delves into themes of spirituality, sacrifice, and the complexities of human relationships. It highlights the impact of Christianity in a foreign culture and the personal growth of Father Chisholm as he navigates his calling and the trials of life in a turbulent time.