"Right, introductions. Professor McGonagall, this is my best friend, Holly Potter... although it might be Holly Granger-Potter now, who knows. Holly, this is Professor McGonagall, the Deputy Headmistress of Hogwarts School of Witchcraft and Wizardry, as well as the Head of Gryffindor House and the school’s transfiguration teacher." I say, trying to ground myself with formalities.