"Ahh," sighed her professor softly, leaning back in his chair as the tension left him and his face relaxed out of its angry lines. His lips curled up in an almost gentle smile. "I see. Well, little sister, you sh-should know that Mr R-riddle took up the name "Lord Voldemort’, though few dared to speak that name and many history books refer to h-him only as "You-Know-Who’."