All of the boys at the Flying U grumbled -- among themselves -- when they heard that the Old Man's sister was coming to spend the summer. They didn't want a woman at the ranch, and certainly not one who had just received a medical degree! But if they'd had an inkling of what was really going to happen, they would have done more than grumble...The weekly mail had just arrived at the Flying U ranch. Shorty, who had made the trip to Dry Lake on horseback that afternoon, tossed the bundle to th...






















