* "Subtle, direct, and profound, this quiet story communicates the deep joy and unbreakable bonds that true friends share, and it will reassure little ones who know firsthand the aching sadness that separation brings." — Booklist, starred review "If I call Amy really loudly, she'll hear me, won't she?" Louie asked his mom. His mom shook her head. "Amy is half a world away." Amy and Louie are the best of friends. They build towers as high as the sky, they look for magical creatures in clouds, and they always greet one another with their special call: "Coo-ee!" But when Amy's family moves far across the ocean, the color drains out of their lives—until Louie finds a way to restore their special bond. A perfect book for any friends separated by a move, this is the unforgettable story of a friendship lost and found.