"Tilly Perkins, the new kid in class, is very different. She has wild hair and wears funny outfits (because, she says, 'princesses don't wear jeans'). Jeff thinks Tilly is a lot of fun. She tells fantastic stories, and she is brave, generous, and has a great imagination. But the other kids think Tilly is weird. Tilly doesn't seem to care what other people say--but Jeff does. What will happen if he invites her to his birthday party?"--