On a pier in Marseille in 1942, with desperate refugees pressing to board one of the last ships to escape France before the Nazis choked off its ports, an 18-year-old German Jewish girl was pried from the arms of the Catholic Frenchman she loved and promised to marry. As the Lipari carried Janine and her family to Casablanca on the first leg of a perilous journey to safety in Cuba, she would read through her tears the farewell letter that Roland had...