Otto and Leni have escaped to England from Nazi Germany. They thought they were safe, but now the British want them to go back. Dropped behind enemy lines, they embark on a secret operation codenamed Wolfsangel. Their mission is to find and kidnap a girl who could bring down Hitler. And so begins their bravest journey yet .

 

There are 252 pages in this book. This book was published 2013 by Scholastic .