What a well written book for young people! I am an adult and enjoyed it immensely even though I think it would be best for 5th - 9th graders. Especially those interested in science or engineering, but really anyone who just wants to know about history.
I knew very little about the subject of the Manhattan Project and I would not be interested in an entire adult book on this subject, so this was perfect. The author keeps the suspense going as if it is a spy novel, which is basically is, except it is all true!
After finishing this I went right to the Internet and looked up all these people and places for more information. The actual book gives great timelines and further resources and photos, but the audio is great just for the absorbing story.
I had never read this before, and was a little leery because I normally like fiction and didn't know if it would keep my interest. This was a very enjoyable listen, often funny, and often tear-jerking. Selma Blair does a great job of capturing the innocence, and insight, of the young Anne Frank. Even if you've read it before, give this one a listen!