Ginny had been attacked by something and knocked unconscious. That had never happened in Katelyle's memories.
Some things were straying from the original story's course and beginning to change.
Was someone else behind this, stirring up trouble?
Hogwarts was no longer such a simple place.
There was Elemental Magic, and the Death Eaters were active. Even though some students had taken the potion and been freed from the Imperius Curse, they were only a fraction of the student body.
So, among all those students, which ones had already become loyal Death Eaters?
Becoming a Death Eater didn't necessarily require a mark. These children were still too young and would easily attract scrutiny. Whoever was behind the Death Eaters would never do something so foolish.
That seemed to bring everything back to square one.
To resolve these problems, they had to find the Death Eaters hiding among the students.
Back in his small house, Katelyle leaned against the sofa, narrowed his eyes, and sank briefly into thought.
Half an hour later, Katelyle entered his alchemy laboratory.
A dozen or so people had gathered beside the lake near Hogwarts Academy.
They were all people Harry trusted and knew well, including his roommates, Luna Jennifer, Cedric, Hans Forbes, Edward Wilson, Hermione Granger, Hannah Abbott, Fred, George, and others.
Ginny's condition worried Harry, especially since many other students had suffered similar incidents lately.
That sense of danger left Harry with no choice but to fight back.
"Our school is too big. If we rely on the professors, they can't keep an eye on every student's safety all the time. I think we need to take action," Harry said in a low voice, his eyes sharp and thoughtful.
"What do you want to do?" Hermione Granger asked.
Harry glanced at Hermione Granger, then recounted the