One small act of kindness ripples out to connect four kids in this stirring novel by the author of the beloved The Benefits of Being an Octopus. Libby comes from a long line of bullies. She wants to be different, but sometimes that doesn’t work out. Now she's suspended again. On the opposite side of the country lives Vincent, a kid who loves the mathematician Katherine Johnson and being a non-conformist, who’s trying hard not to get stuffed into lockers at his new school. But that’s not working out too well either.   Nearby is T, who couldn’t take living at home anymore and is determined to survive on a rainy sidewalk. And then there’s Jack, a big-hearted kid so engaged in the fight to keep his small rural school open that he’s lost focus on the ones who need him most. Four kids. Four different lives. And then… one card with a message of hope takes flight and starts a chain reaction, helping each kid summon the thing they need, whether it’s bravery, empathy, or understanding. But best of all, it makes each one realize they matter -- and that they're not flying solo anymore.