All Nettie's experiences as a missionary in West Africa take up a large part of the novel. Initially she is excited at the prospect of returning to her roots in order to convert her ethnic brothers and sisters. A series of disappointments and disillusionments follow, as she realises that they are uninterested in slavery, the black experience in America, or really in the religion which the missionaries have brought them. Paradoxically, Corinne, Samuel and Nettie are alien outsiders among their own original people. There is no racial unity between the three of them and the Olinkas despite the colour of their skins and their common heritage.
Olinka society is at first fascinating and alluring but as the time progresses. Only Tashi comes round to her way of thinking and she is ostracised and leaves the tribe to marry Adam travelling back to America with Nettie and Celie's children. The practice of female circumcision and facial scarring is also revolting to Nettie, who regards it as degrading but understands it to be a custom which enables the Olinka to cling on to its tribal identity in a changing world. It is a barbaric custom and Nettie feels helpless to influence the tribe or to help the victims