Atticus' sister does not appear until later in the novel, as Atticus works long nights on the case. Very little is known about Finch's aunt. She always helps the plot unfold by helping Atticus in times of need; she also informs Jem and Scout about where they may have come from and the hard work it took for their ancestors to reach the point they are at. Dynamic: At each beginning of Lee's book, we notice that Jem is young and immature as well as his mannerisms. As events progress, we see Jem grow and gradually become a man. Jem believes that a real man is one who knows how to shoot a gun and dominate his peers. We see Jem change what he believes to be a man through his interactions with people in the conflicts he faces. Jem Finch is a main character but also a dynamic character due to his coming of age..