Su Er rubbed his chin and pondered for a while.
"If the door knocker and the Diadem are the keys to opening that hidden room..."
"Doesn't that bring us right back to where we started?"
The smile froze on Hermione's face. The joy of finding a clue and pinpointing the room's location was like a blazing fire smothered beneath a truckload of sand.
"Oh, right." Hermione deflated like a punctured ball, seeming to wilt completely. "Eddie and the others have been searching for Ravenclaw's Diadem for so long without finding it..."
Anyone would feel dejected after working hard to find a treasure, only to discover at the final step that they had to return empty-handed with a mountain of riches in sight.
Especially since Hermione had spent all her free time lately searching for clues.
Now they were back at square one, all that effort wasted. Even if the room really existed, what good would it do?
Seeing Hermione looking utterly dispirited, Su Er could hardly bear it.
He did know where the Diadem was. Or rather, anyone who came to this world knew where it was. But likewise, every transmigration expert knew that the Diadem had already been made into a Horcrux.
What was a Horcrux?
A vessel created by an evil Dark wizard, who sacrificed an innocent life and used other unknown Dark Magic to split his own soul.
Wait...
A gleam flashed in Su Er's eyes. He suddenly recalled an interesting discussion topic he had seen on a forum for fans of the original books, long ago when he was still a corporate drone. It had prompted a crowd of people to reply and debate its feasibility. What had they been discussing?
As Su Er deliberately searched his hazy memories, they gradually surfaced, becoming clearer and clearer.