The book has action and mystery in it

I think this is an awesome book, because it helps me learn what kind of happened on September 11, 2002. Plus I've read it before multiple times and i think you should read it two.

I decided to share this book because it looked really cool. But it's a series, and all of them have a cool cover to it which made me wanna read it. I haven't started reading it yet though nut it sounds really cool.