Interface between chemistry and biochemistry Book

I really enjoyed this book because it shows Tessa, one of the main charcaters, who begins to learn the meaning of change and the pain of growing up. It shows the bond between a friend, and the love of a migratory bird. I really love this quote at the end of the book, "her eyes were open, but they were as nuetral as glass. Yet she saw without seeing, saw things more subtle than knowledge and deeper than sight." I admire this quote because it seems the protaganoist, Tessa. finally realized the true meaning of life and what it means to finally frow up.