Atticus's sister does not appear until later in the novel, when Atticus works long nights on the case. Very little is known about Finch's aunt. He still helps the plot unfold by helping Atticus in a time of need; he also informs Jem and Scout where they can and the hard work it took their ancestors to get to where they are. Dynamic: In every beginning of Lee's book we notice that Jem is young and immature and his ways. Over the course of events we see Jem grow and slowly become a man. Jem believes that a real man is one who knows how to shoot and dominate his peers. We see Jem change what he believes a man is through interactions with people in the conflicts he faces. Jem Finch is a main character but also a dynamic character due to his change in maturity.