The mountain lion roared a terrifying snarl as it jumped from the big rock and landed in front of Fifi. Katie screamed

Ten-year-old Katie Collins didn't like to listen to her parents and do her chores. Neither did her pet dog, Fifi. So when her parents decided to send her to stay a few weeks with her grandparents on a working cattle ranch in South Texas, Katie wasn't happy. And, when Scooter, the ranch's semi-retired cow dog saw them arrive on the ranch, he couldn't believe his eyes. Their reluctance to listen and learn on a busy Texas ranch would soon lead to all kinds of...