The simple plot of this story brings up a few very important moral dilemmas. Winnie, at her young age, is constantly forced to choose between what she has been taught as the norm and what newer circumstances have revealed to her as true. She has a hard time accepting the truth about the Tuck family, being a sensible girl. And yet, because of their gentle and kind behavior, Winnie finds it impossible to not love them. She must therefore choose the validity of her own new experience over what she has been taught or has learned to accept as normal.
Apart from this important lesson on changing our perspectives on ‘normal’, another important lesson I got from this book is that of making the right decision. Winnie, despite her fears and guilt of betraying her family’s trust, chooses to rescue Mae Tuck as, according to her, it is the right thing to do. Had she consulted an adult or any other friend on this issue, she would probably have been persuaded to not go through with her final plan. But she has confidence in her own judgment and decides to do it anyway.