Lonely and bored with rural life in 1856, young Bella Lee Dunkinson began to hang around the local railroad. Engineer John Hardiman took a liking to the spirited girl and gave her a boy's responsibilities helping with the engine. One stormy night, the engine was slipping dangerously on wet rails. While John was putting sand on the tracks, Bella found herself alone in the cab driving the train up a steep and dangerous mountainside--a 16-year-old...