Gonzalez, Christina Diaz. A Thunderous Whisper. Yearling, 2013.
The sleepy little market town of Guernica is destroyed by Nazi bombers. In one afternoon Ani loses her city, her home, her mother. But in helping the other survivors, Ani gains a sense of her own strength. And she and Mathias make plans to fight back in their own unique way.

Mariconda, Barbara. Bird with the Heart of a Mountain. Skyscape, 2013.
Set during the turmoil of the Spanish Civil War, sixteen-year-old Drina yearns to dance flamenco. When she dances, she forgets who she is. She forgets what seems to be her legacy: I am nothing. I belong nowhere. Why does her mother forbid her to dance, the very thing that makes her feel alive? She wonders about the secrets her mother holds, about the rumored life she had before Drina was born--a story that somehow still holds them both prisoner.

Wilson, John. Lost Cause. Orca Book Publishers, 2012.
Steve thinks a trip to Europe is out of the question—until he hears his grandfather's will. Suddenly he's off to Spain, armed with only a letter from his grandfather that sends him to a specific address in Barcelona. There he meets a girl named Laia and finds a trunk containing some of his grandfather's possessions, including a journal he kept during the time he fought with the International Brigades in the Spanish Civil War. Steve decides to trace his grandfather's footsteps through Spain, and with Laia's help, he visits the battlefields and ruined towns that shaped his grandfather's young life, and begins to understand the power of history and the transformative nature of passion for a righteous cause.