In the time after the Second Wizarding War, an American professor Alastor LeBlanc took up the post of Defense Against the Dark Arts, and then with Slughorn's retirement, Alastor became the new Head of Slytherin House. The American wizard is still quite a mystery to many at Hogwarts but one thing is known, he will not hesitate to punish his own house, points be damned and he does not tolerate any remaining whispers of pureblood elitism. But many wonder, *who* is Professor LeBlanc?