This is a very gripping, but graphic book, which isn't surprising, since much of the action is taking place in war-torn Berlin. I found myself totally immersed in the story, finding it very hard to put down. There were many little twists and turns along the way, which kept me guessing, and some of the time I did guess correctly.
I felt quite churned up at the end, after experiencing what the main character and his family and friends went through. I felt I was right there with them all the way, which proves what a talented author R.D. Zimmerman is.