What is the overall theme of the story, give examples of how the author makes you think of this theme as you read?

I think that the overall theme of the story Wringer is to always be yourself and stand up for the things that you believe in. The author gives little tips and hints that the story is that theme. I can tell that by the way that palmer faces his fear at the end of the book.  He leaps out Nipper and is finally brave enough to say that he has a pigeon.