imagine the book has one more chapter than it does. What would you add into it? (There's no right and wrong answer)

This is really asking for your creative input rather than mine. Now on the cusp of his adulthood, Bryon has experienced many painful things, but he has gained much by becoming a “mixture,” and has many future “what-if’s?” to now explore. You might explore one of those "what if's" in Byron's life.