After Nettie had left their house (following Mr. __’s demand that she leave), Mr. __ followed her on horseback and tried to rape her.  In the struggle, Nettie hurts him, making him swear that she will never communicate with her sister again.  Soon Nettie begins working for a missionary family (the same family which adopted Olivia and Adam, Celie’s two children) which is preparing to leave for Africa.  Nettie too, decides to go on the mission trip.  Reading on the ship and later in England, Nettie learns much about her race’s history, which she recounts to Celia in the letter.  For example, Nettie is pleasantly surprised that even black people are in the Bible.  Next, Nettie and her new “adopted” family head to Liberia where they plan to serve as missionaries.