An exciting adventure

Now used to read romance novels, there are few that I find to my liking - although I continued my research, particularly by reading the amazon comments;).
We need a little intrigue out of the ordinary, the story is solid, the sub rich text and interesting secondary characters. This is the case in this novel.
The heroine is a little stiff, but a chaotic childhood emotionally explains it well. Leo is young, beautiful, charming, loving and beloved by all but not hollow. It's not every day that a hero of romance wishes to become a mathematical genius to impress his beautiful! Besides herself a doctor at a time when women were confined to the nursing profession ...
The author, as usual, offers many flashbacks like a pendulum. These come illuminate the present situation and especially the reactions of the characters which become credible.
I experienced a lot of heart and emotion tightness reading this intelligent and sensitive book. I highly recommend it.