Book excerpt: Willy wants to cheer his best friend, Carlos, up. And what better way to do so than a Christmas visit from Santa Claus himself? But when Santa answers Willy's e-mail pleading with him to visit the 19th floor of their inner-city apartment building, he doesn't quite know what is in store for him. Yin and Chris Soentpiet, the author-illustrator pair who created the ALA notable Coolies, bring us a heartwarming and modern Christmas story with the lush illustrations that Soentpiet fans have come to love.