So in Gedwell Falls, California Rio Richlin is deciding whether to enlist, as is Rainy Schulterman in New York City and Frangie Marr in Tulsa, Oklahoma.

Each has her own reasons for volunteering: Rio fights to honour her dead sister, Rachel; Frangie needs money to support her family, as her father has not been able to work since he was injured; and Jewish Rainy wants to kill Germans and bring down Hitler.

Booklist wrote "Though it's an epic story with a page count to match, the dynamic characters and urgent plot never get lost in the enormity of the historical moment.

"[1] and the School Library Journal calls it "imaginative" and found "Though the length may put some teen readers off, the alternative history and wartime plot, which reads like a movie, will appeal to many.

"[1] Kirkus Reviews wrote "Bestselling science-fiction author Grant did his research (an extensive bibliography is provided), but the odd and likely unintended consequence of his premise is the erasure of thousands of military women who historically served and fought and died.