A tense, exciting and moving new drama from the bestselling author of the GONE series. 1942. The fate of the world rests on a knife's edge. And the soldiers who can tip the balance...are girls. Set in an alternate World War II where young women are called up to fight alongside men, this is the story of Rio Richlin and her friends as they go into battle against Hitler's forces. But not everyone believes that they should be on the front lines. Now Rio and her friends must fight not only to survive, but to prove their courage and ingenuity. Because the fate of the world is in the hands of the soldier girls. The first of three books, this is Michael Grant at his epic best.