Dr. Cunningham is Avis's father, a well known and respected scientist. His invitation to Everhard to speak at a dinner party is the catalyst for the beginning of Avis's attraction to him and her being drawn into the revolutionist cause. Morehouse is a guest at that party. Everhard's presence at the dinner is also the catalyst for journeys into deeper social awareness undertaken by both men. Dr. Cunningham joyfully considers his journey a scientific experiment in sociology, while Bishop Morehouse, much less joyfully, considers his journey an exploration of the true spirit and intent of Christ.