However , Dumbledore did not appear to know the Room 's secrets .
Dumbledore was first to mention the room , noting that he discovered it at five - thirty in the morning , filled with chamber pots when he was trying to find a toilet .
Dumbledore did not appear to know the Room 's secrets .
Dumbledore was first to mention the room , noting that he discovered it at five - thirty in the morning , filled with chamber pots when he was trying to find a toilet .