This is an amazing book that I devoured in one sitting. I recommend Penny’s War to ages 10-12. Although it is a very short book I feel as though there is still wonderful character development. When I read it I found myself completely attached to Penny and Peter. I always felt like I was in the book, not just observing from the outside. Many times I found myself scared when Penny is in great danger and joyful when she meets new kind people. This is a wonderful book that at times was so suspenseful I had trouble finishing the page I was on because I was so excited for whatever would come next.