When the door materialised, they stepped forward into their room, and found it had changed again, though not by much. Where Crocker’s imitation office had once been, now there was only a completely bare room, like the one Harry had found Draco in on the day he realised that everything had changed and there was no going back. The only thing that remained, was the filing cabinet, which had relocated itself to the middle of the room. The third draw down opened by itself in expectation of receiving their prize.