Martha and Jem are married and move into Miss Matty's home as lodgers. Dr. Harrison learns that Sophy has been sent away to stay with an aunt in Shropshire. When she returns home she contracts typhoid. Lady Ludlow mortgages the estate against Mr. Carter's advice. The ladies of Cranford decide they want to help their friend Miss Matty in her time of need. Mary manages to identify the man who sent the Valentine cards. Mr. Carter is injured in an explosion at the railway construction site and dictates his last will and testament. Major Gordon returns to Cranford but he also has a surprise for Miss Matty.