This is a story about a girl named Marilyn. She is afraid to take swimming lessons because she would make huge splash and other children would laugh at her as a whale. The coach noticed it and had a talk with her. He told her, sometimes what we think can determine who we become. If Marilyn imagines herself to be light, she would become light and jump into water well. Marilyn applied this idea to many thing she did. She suddenly became confident and did amazing things. Indeed, imagination can bring super power. This is a very good book with fascinating illustration young readers would enjoy.