Berlin, 1938 It is the summer before World War II begins, but Charlotte Kraus doesn’t know it yet. All she knows is the zing of electricity she feels every time her best friend, Angelika Haas, grabs her hand. Charlie would follow Geli anywhere—which is how she finds herself at an underground club one Friday night, dancing to contraband American jazz and swing music, suddenly feeling that anything might be possible. Under the oppressive shadow of the Nazi regime, returning to the club is a risk. But Charlie does, unable to resist the allure of sharing a secret with the girl she can’t stop thinking about, or the thrill of disobeying the Party’s rules. Soon the Swingjugend movement becomes more than a simple escape. It’s a place where Charlie and her friends find acceptance, freedom, and camaraderie among others who are determined not to sit on the sidelines of history. Increasingly terrified by the tightening vise of Hitler’s power, Charlie is drawn to larger and larger acts of resistance—even as Geli, the daughter of a senior Party officer, begins to pull away. But resisting the Nazis is a dangerous proposition, and the war will test what Charlie is willing to risk at the expense of her family, her friends, and the girl she loves.