"From the #1 New York Times bestselling author of Small Great Things and The Book of Two Ways comes a deeply moving novel about the resilience of the human spirit in a moment of crisis. Diana O'Toole is perfectly on track. She will be married by thirty, done having kids by thirty-five, and move out to the New York City suburbs, all while climbing the professional ladder in the cutthroat art auction world. She's an associate specialist at Sotheby's...

Sam Alexander is a kid bound by the gravity of a small town -- and a father whose ridiculous, drunken fairy tales about a "Nova Corps" were just another heavy burden. But lucky for Sam, gravity soon won't even matter -- and those troubles will be a billion miles away. It's a boy, a helmet and an intergalactic legacy! As Sam trains with the Guardians of Galaxy's Gamora and Rocket Raccoon, the helmet leads Nova into intergalactic conflict that will...