Chapter 10, In the Opera Box, Chapter 11, Lord Grenville's Ball, Chapter 12, The Scrap of Paper, and Chapter 13, Either—Or? Summary

Lord and Lady Blakeney are at the opera. When Marguerite is left alone in her husband's box, Chauvelin comes to speak to her. Marguerite is unfriendly, making it clear to Chauvelin that she does not want to help him. However, when Chauvelin tells Marguerite that he overtook two of the Scarlet Pimpernel's men and confiscated their papers and that among them was a letter from her brother, Marguerite begins to listen. Chauvelin tells Marguerite that the letter implicates her brother in the Scarlet Pimpernel's schemes and that he will be arrested and executed if this letter comes to the attention of the French government. Chauvelin then tells...