Macbeth's brain is not like it used to be, now he is only focused on what is best for him. In the past, he would've fought for what was right for everyone instead of for just his personal gain. Josh and Genevera were looked at as a nice family, but turned into a tragedy once they became obsessed with the idea of bright ideas and decided to kill Denise for their own personal gain to get there son into bright ideas (Coble 13-14). Lady Macbeth and Macbeth's fears turn into a reality by the end of the book, lady Macbeth, who turned Macbeth into a tragedy is now a tragedy herself. She says she must have a light with her at all times for her anxiety. (Shakespeare