This book was pretty mediocre. Not great, but still okay. Karl was a decent character, but I wish the other characters had been a bit more fleshed out. 
 Also, I'm not all that interested in boxing. It was all right, and kind of interesting, but not so exciting that I couldn't put it down. 
 All in all, I've read a lot of really good fiction based on the years before, during, and after the Holocaust. This wasn't one of them.