'Lucy! Get that dog away from here! How often do I have to tell you that he is not to go near the oxen.' Lucy's father is touchy because he is worried about her mother, who's expecting a baby any day. The year is 1843 and the Stewart family is emigrating to Oregon by wagon train. And Finn, Lucy's frisky fox terrier, just can't seem to stay out of mischief. One day when the wagons break camp to move on, Finn is nowhere to be found. Lucy knows her father will be angry, but she can't help that. She simply has to sneak away from the wagon train and search for her missing puppy. Carla Steven's story is based on actual journals of the pioneers' journey to Oregon.