The office hadn’t changed. It looked like it had been entirely unaffected by the battle, with the odd instruments that Harry remembered Professor Dumbledore owned still there, puffing out coloured smoke or twisting and turning in content. A small part of Harry was relieved that at least some small part of Hogwarts remained preserved, though he didn’t know why it hadn’t been affected. As he looked around, he noticed that all but one of the portraits of past headmasters had been abandoned. Maybe Voldemort intentionally preserved it.