This book tells of the life of St. Monica (332-387 A.D.), mother of St Augustine of Hippo. As a young girl in a Christian family, she heard the stories of the early martyrs and asked God to let her suffer for Him. Her prayer was granted in an unexpected way as she became the wife of a pagan and the mother of a son who, though brilliant and talented, soon fell into sinful ways and in time adopted the heretical beliefs of the Manichees.