Mazo de la Roche leapt to prominence as one of the most successful writers of the twentieth century when the first novel in her Whiteoaks of Jalna series won the Atlantic Monthly prize in 1927. She went on to write sixteen novels in the Jalna series as well as numerous other novels, short stories, and children's books. De la Roche has a genius for producing undemanding yet fascinating narratives that grew out of an adolescent daydream. In this biography Joan Givner has recovered, with great insight, the hidden life of Mazo de la Roche.