I found this to be an interesting book focusing on the emerging railroads of the US with a light romance spin to it. This is NOT a typical, bawdy romance novel, and would instead be completely appropriate for a religious, teenager who wants her heart to flutter a bit as she reads. (I haven't read the two sequels yet, so can't speak to those).
However, the story line was a bit slow for me, and even my own fascination with the railroad politics, etc was taxed by some of the time the author spent on setting the scene of the story. Also, the relationship is taking so long to develop, I'm losing a bit of interest in the book as a result (not enough 'moments' to keep me wanting to know what's next). Most importantly, if you are not Christian, this book is riddled with bible verses, and you might very well be irritated by that. On the flip side, if you ARE Christian, you are going to love seeing a 'romance' novel that actually ties scripture into the actual storyline continually.
So, interesting read, fun way to learn about the railroad, but if you are someone is a book-devourer like me, you probably want to get your fix on the emergence of the rail in America in a slightly more mature book that isn't quite so 'disney'd' up. :) GREAT FOR TEENS!