A Telegraph best new children's bookA Daily Mail book of the yearLondon, September 1940. Deep in the Underground, taking shelter from the bombs, four teenagers meet.Without the Blitz, they never would have met.Fourteen-year-old Ella walks with a limp. Some days, she feels like a laughing stock. Other days, like no one sees her at all. Quinn is fifteen, fancy and fearless. She's run away from home with a bag of family jewels and big ideas about changing the world. Jack is sixteen and doesn't care about anything anymore - he's already lost it all. And then there's Sebastian, Quinn's older brother. He used to be her hero. Until he became a traitorA coming-of-age historical novel for teens from internationally bestselling children's author, Anna Woltz.