Book excerpt: "Margo is an imaginative, adventurous little girl who has just one problem worry has found its way into her life. She sometimes feels nervous and uncomfortable, especially inside the wild world her imagination creates. Whenever her mom gives instructions, Margo's mind turns the everyday advice into worst-case scenarios. Luckily, Margo's mom comes up with an idea to ease her daughter's anxieties and encourage her inventive spirit in a positive way."--Provided by publisher.