Plot kept me reading nonstop. I was not familiar with all of the various theories behind the crash. Book was informative while being thoroughly entertaining. Character John Corey is wonderful. I've read Plum Island years ago. Just read The Lion's Game (outstanding) last week, read this one, next on my reading list is "Wild Fire". Then I will be all caught up on John Corey and wife Kate. I am wondering if Ted Nash returns?