Sara Stark said this quote

Even though this princess loved the oak and the castle and her mother, the queen, she tired of the beautiful swamp, of her surroundings. You see, as she grew she came to realize that if she looked too closely, she could recognize evil things in the swamp as well as all the extraordinary things she loved. There were hurtful, malicious things, things that grew quickly, quick enough to ensnare her and smother her if she wasn't careful, maybe even quick enough to steal her life away.