The Cloudspotter by Tom McLaughlin
His real name was Franklin. But everyone called him The Cloudspotter ... The Cloudspotter doesn't have many friends. He spends his time, all by himself, spotting not just clouds but adventures in the sky. This way, he doesn't feel so alone. Then, one day, an unexpected visitor appears in his adventures and it throws everything up in the air. Could it be that two cloudspotters are better than one?