After asking a few questions, Douglas confirmed that because the Weasley Twins had returned late,
the version they had heard was no longer the original.
But he could confirm that the original version had come from Ron and Harry.
Combining that with the important information in the other versions of the rumors,
Douglas could deduce that the Diary was definitely at school.
And he could be certain that his arrangements had successfully provoked the other party.
What he could now confirm was that the person Voldemort had chosen was definitely not a student in the lower years.
If he remembered correctly, the Diary Horcrux revived by draining life force.
From the tests over the past few days, although those children's physical fitness varied, none had shown anything unusual.
Douglas took out the Marauder's Map, activated it, and laid it on the table.
Only then did he notice that quite a few students were still scattered across several classrooms in the castle.
Douglas rubbed his head. He had actually forgotten that today was the first day the Magic Practice Study Room scheme was in effect.
It seemed to be working quite well.
Then he brought up the system panel for a look.
Perhaps because he was not the supervising teacher, those study sessions had not counted toward his teaching totals.
But that really was not his main concern at the moment.
He stared intently at the map of the bathroom that concealed the entrance to the Chamber of Secrets.
He watched to see whether any students went in or came out.
Perhaps earlier, with the Weasley Twins present, he had not wanted them to think he was a pervert who spent all day spying on students.
That was why he had felt too embarrassed to use the Marauder's Map.
But now...