Weina Dai Randel’s Night Angels, which fictionalizes the story of Dr. Ho Fengshan — the consul-general in Vienna during World War II — and his wife Grace, immerses readers in the couple’s heroic efforts to issue visas to Jews fleeing the Nazis. In his lifetime, Ho’s work went unacknowledged, although Yad Vashem posthumously recognized him as a Righteous Among Nations. This novel does both Ho and Grace justice by introducing a new generation to their work.