Although it's not a novel or a modern piece of literature, I would strongly recommend teenagers to read or study Shakespeare's "Macbeth". For those of you who are not familiar with this famous 16th century tragedy play, it narrates a story about betrayal, a general's betrayal of the king and betrayal between friends as well. It also describes the consequences following this lack of loyalty to others. The main character, Macbeth, reflects human nature which contains greed and ambition. Despite being a four-hundred-year-old piece, I believe "Macbeth" can still connect to young adults of today's society through its plot, characters and themes.