A Good HorseBy: Jane Smiley Series: The Horses of Oak Valley Ranch When eighth grader Abby Lovitt looks out at those pure gold rolling hills, she knows theres no place shed rather be than her familys rancheven with all the hard work of tending to nine horses. But some chores are no work at all, like grooming young Jack. At eight months, his rough foal coat has shed out, leaving a smooth, rich silk, like chocolate. As for Black George, such a good horse, it turns