Carton knows lots of information that could uncover Barsad's spying career and get him arrested for many things. This is the metaphorical game of "cards" referred to in the chapter title.
John Barsad is the person who helped Darnay escape. Not Sydney Carton
Barsad is concerned only for his own skin. He wants nothing to rebound to him by this mad act of Carton's and, having arranged for Carton's entrance into Darnay's cell, he considers their account settled.
Sydney Carton is killed in Book 3, Chapter 15 of "A Tale of Two Cities".
Sydney Carton is the character who makes the proposal to switch places with Charles Darnay in the courtroom in "A Tale of Two Cities". By doing so, he sacrifices himself for Darnay's safety.
Solomon Pross was also known as Sydney Carton in Charles Dickens' novel "A Tale of Two Cities".
Sydney Carton helped Charles Darnay escape from prison in Charles Dickens' novel "A Tale of Two Cities." Carton switched places with Darnay and sacrificed himself so that Darnay could leave the prison safely.
Charles Darnay and Sydney Carton went to dinner after the treason trial was over in "A Tale of Two Cities".
The jackal in "A Tale of Two Cities" refers to Sydney Carton's legal colleague and co-conspirator, Mr. Stryver. This nickname symbolizes Stryver's cunning and opportunistic nature, contrasting with Sydney Carton's selfless sacrifice at the end of the novel.
That would be the book A Tale of Two Cities.
The character known as the "jackal" in Chapter 5 of A Tale of Two Cities is actually named Mr. Stryver. He is an ambitious lawyer and colleague of Sydney Carton who uses Carton's talents to advance his own career.
The fellow of delicacy is Sydney Carton. Sydney Carton is also called the "Jackal", while is friend, Mr. Stryver is called the "Lion."
Some archetypes in A Tale of Two Cities include the hero (such as Sydney Carton and Charles Darnay), the martyr (Sydney Carton sacrificing himself for Lucie), the villain (Madame Defarge and the oppressive regime of the French aristocracy), and the innocent maiden (Lucie Manette).