When Liesl meets Po, he is just a small ghost struggling to be seen. Her friendship helps him gain strength and he returns the favor by helping her pass messages to her father. They strike up an unlikely friendship that will help them turn their grey world into the place it once was and helps to change other people they become involved with along the way. And did I mention the magic? Much like a fairy tale that is close to The Tale of Despereaux, this book would be wonderful to read aloud.