No one knows that rough, tough stagecoach driver Par Pen is really Purity Pennington. She ran away years ago to escape an unwanted marriage. So it's a complete surprise to her when she discovers she's engaged to a man she never met! The last thing she wants to do is go back to Last Chance, but someone back home has a lot of explaining to do. Livingstone ‘Caspar’ Smith can't wait to meet his future bride—a sweet, God-fearing frontier widow in the far-off land of Nebraska. They've corresponded for months and he's already in love with her. Well, at least that’s what he told her. Really, he just wants to get away from his uncle's controlling ways and if marrying some sweet, gentle backwoods woman is the way to do it, so be it! When the stagecoach is robbed, Caspar is forced to spend several days with the surly, but manly Par Pen. But there’s something odd about the man he can’t quite figure out. Purity wants nothing to do with the scared, squeamish back East Negro man who doesn't know a horse from a dog. But they're stuck together for the time being. Surely, she’ll be able to keep her secret for that long and not shoot him in the process. Can’t she?