Sydney learned that Lucie and her daughter were to be condemned by the revolutionaries because of their association with a known aristocrat (Charles Darnay). He has pledged himself to Lucie to save her life or the life of anyone she loves. This will now include Miss Pross, Mr. Lorry, Doctor Manette, and Jerry Cruncher, as well as Charles. He has devised the scheme of drugging Charles in prison, switching places with him (since he and Charles look so similar), and having him carried out by John Barsad, claiming that it is Sydney overcome in the cell. These people all have letters which allow them to leave Paris and France. The plan is successful, though Miss Pross loses her hearing when she and Madame Defarge are struggling and the pistol goes off near her ear. Madame Defarge is killed, and Miss Pross and Jerry leave in a separate carriage, eventually meeting up with Charles, Lucie, and the others.

In *A Tale of Two Cities*, what prompts Sydney Carton's plan to exit Paris safely?

Sydney Carton learned that Lucie and her daughter were also to be condemned by the tribunal and most likely be put to death, because of their relationship to Charles Darnay, who is on his way to the guillotine the following day. Sydney therefore devises a plan by which Lucie, her daughter, her father, as well as Jerry and Miss Pross will be able to leave France before this happens. He plans to exchange places with Charles, having promised Lucie that he would do anything for her or for anyone she loves. He fulfills this promise with his life. He drugs Charles, exchanges places with him successfully due to their similarity of appearance, and has John Barsad take Charles out the prison to the carriage where Lucie and the others await. He willingly goes to his death, hoping in this way that he will achieve some kind of redemption for his worthless life.