It was the kind of promise a father makes easily and sincerely, knowing at the same time that it will be impossible to keep. The truth of some promises is not as important as whether or not you can believe in them, with all your heart. A game of baseball can't really make a summer day last forever. A home run can't really heal all the broken places in our world, or in a single human heart. And there was no way that Mr. Feld could keep his promise never to leave Ethan again. All parents leave their children one day.