Is there a Queen Bee?

After reading the book I wondered, is there a Queen Bee in this book?  I think my answer is Lily.

I know that is not the answer for most, but for me she is the main character and she is the one that really drives the story.  Without her, there is no story and it remains static.  Her curiosity is magnetic and as a reader I was really drawn to her more than the other characters so for me it's Lily.