Sad that 50 of them were murdered by the Germans.Wow! When I was in school, a teacher assigned us this book.
I was fascinated. They made compass cases out of melted phonograph records! They made air tubes out of hundreds of cans! They hid tunnels everywhere! And it was all TRUE!!!
Unfortunately for me, the rest of the class whined that the book was boring (!!!) and the teacher had us turn them in. He had to pry mine out of my fingers. Years later, I was finally able to get a copy of the book, and it was worth it.
I'd like to list the truly amazing things they did to escape the Nazi prisoner-of-war camp, but I wouldn't want to spoil the book for anybody.