Continuing The Adventures of Miss Mary Bennet, Volume III, in which the characters from Jane Austen's Pride and Prejudice return: Caroline Bingley provokes; Major Ashton vexes; Lady Catherine manipulates; Mr. Collins annoys; Jane and Mr. Bingley depart; Mr. Darcy and Elizabeth anticipate; and Georgiana and Mary endure a London season where complications and a carriage catastrophe affect how Mary's story will end.