What does the apple symbolize in John wickham's septimus?

the Apple represents knowledge and a loss of innocence because a six year old child is forced to face the reality of being poor.he cannot have a whole Apple for himself. the child is no longer innocent after he is faced with this reality because he learns that life is not fair because he cannot always get what he wants. the Apple also represents growth as well because septimus is able to accept his situation by voluntarily sharing his Apple.