On the heels of Newbery Honor Book Magnolia Wu Unfolds It All, Chanel Miller creates a character who recommends it all. Luna, the seventh-grade protagonist of The Moon Without Stars (Philomel, 10–13 years) has plenty of bibliotherapy recommendations for her classmates, who leave her notes about their problems. But that doesn’t mean she has all the answers when it comes to navigating middle-school social dynamics.