This is my first Kopp Sisters book to read, so I'm a bit out of order. Still, I was able to follow along just fine. I was fortunate to meet the author at the recent ALA conference, as well as receive an advance copy of this book. The author's explanation about this series, which is based on historical facts, was fascinating. I found this book entertaining if not as exciting as I thought it would be. It was just missing... something which would have made me enjoy it more had it been present.