Praise
***STARRED REVIEW***
"Readers will be suitably impressed and riveted. A bracing celebration of one gifted woman’s insufficiently heralded achievements in war and peace."
—Kirkus
"This unique biography fills in ample background information to underline the crucial importance and daunting time constraints of her work, while also explaining how codes and ciphers work."
—Booklist
"[T]his biography sheds light on a little-known historical figure and offers young readers unique insights into major events of the early twentieth century."
—Bulletin of the Center for Children's Books
