This was recently discussed here. I came up with this specific idea here.
The ‘drawing a circle’ thing: Dumbledore expects Riddle to show up on the Map as Riddle forty-five years after he graduated. Apparently student records are preserved; professors wouldn’t need to be named to the wards unless they weren’t alumni.
This was recently discussed here. I came up with this specific idea here.
The ‘drawing a circle’ thing: Dumbledore expects Riddle to show up on the Map as Riddle forty-five years after he graduated. Apparently student records are preserved; professors wouldn’t need to be named to the wards unless they weren’t alumni.
It seems like an important feature of a security system would be to detect outsiders as well as students.
Who says it doesn’t? The problem would be coming up with a way to get their names.