The Enigma Game (YA)

When 15 year old Louisa took a job caring for a elderly woman she had no idea what a adventure it would be.  Louisa having lost both her parents to bombing wants desperately to do something, anything to help fight back against Germany but she is not sure how to do this as a a 15 year old.  When Louisa and her charge reach the small village of Windyedge in Scotland, Louisa meets some friends (if you have read other books by Ms. Wein, but not necessary) that will help her on her way.
Like I said if you have read Code Name Verity, and some of the other books, you will be reunited with some friend, if not don't worry you can read them after this book.  You will find all Ms. Wein's books are wonderful.  I really with I could have learned history this way.  While the book is fiction some of the facts are based in history.  I love all of her books where the main character is female, but the action and suspense is strong enough to hold anyone's interest.I really loved this book and hope you will too.