The Enemy Above: A Novel of World War II by Michael P. Spradlin

In 1942 twelve-year-old Anton, his family, and their small community of Ukrainian Jews are hiding from the advancing Nazis troops, and from the Gestapo, in a web of underground caves, and one officer in particular, Major Karl Von Duesen, is determined to catch or kill every Jew he can find--but as the tide of war turns, a final confrontation between Anton and his enemy is looming.