Charles Rotmil, 77, of Portland held a group of students spellbound during Diversity Day at Dirigo High School on Friday. Rotmil, who is Jewish, talked about surviving the Holocaust as a child in Belgium and France. He told the story of losing his mother and sister when a train was sabotaged and of his father being arrested by the Gestapo, sent to the concentration camp in Auschwitz and gassed on arrival.