"Love Triangle in historical novel, "Klara's War." amazon.com

Riding on a train fleeing the German army, Henryk eyes Klara. But Volya saw her first. Read about this “love triangle,” in Klara’s War,” a WW2 historical novel, and  a story of “danger, separation and love.”  https://www.amazon.com/dp/B07T14WCV3?ref_=cm_sw_r_kb_dp_ippeDbDMC23DC&tag=kpembed-20&linkCode=kpe