It is revealed that Cynthia is also secretly engaged to Mr. Preston ever since she was 15 years old. When she tries to break off that engagement, Preston is reluctant to let her go or give her back her letters. After a visit to London, Cynthia also breaks off her engagement to Roger who is on an expedition in Africa. Osbourne's health decreases quite severely. Fearing his father's reproach, he still cannot tell him of his marriage to a French woman or his having a child. (thetvdb.com)