The Inn of the Sixth Happiness (1958)

All her life Englishwoman Gladys Aylward knew that China was the place where she belonged. Not qualified to be sent there as a missionary, Gladys works as a domestic to earn the money to send herself to a poor, remote village. There she eventually lives a full and happy life: running the inn, acting as "foot inspector", advising the local Mandarin. and even winning the heart of mixed-race Captain Lin Nan. But Gladys discovers her real destiny when the country is invaded by Japan and the Chinese children need her to save their lives.