After all, ten minutes ago, Kael didn't even know he'd be trapped here, so how would the house-elves know?
Kael ate his sandwich, pondering but never coming up with an answer.
It couldn't possibly be Ravenclaw... Not to mention whether she can still control the Room of Requirement, what's the point of locking him in here?
To make him use all his time to study?
No need for that, he only spends half an hour eating every day, what use is there even if there's a bit more time?
Lost in thought, Kael didn't even realize that the food on his plate was already gone, leaving only a few crumbs.
The next moment, those crumbs disappeared too, and the golden plate became shiny as new, just like everything in the outside auditorium.
"Is the reason this plate?" Kael thought to himself, picking it up and examining it closely.
He had deliberately tried before, the house-elves couldn't deliver food here, but now they could. The only change was this plate.
Hogwarts' plates, and the house-elves use them to deliver food from the kitchen to the corresponding tables in the auditorium.
Now it appeared in another Hogwarts' auditorium, and Kael had no recollection of how it got here.
Who did this? The key to entering the Room of Requirement has always been in his hand, able to bring things in... Ravenclaw?
Kael tapped his fingers lightly on the table, thinking about her purpose for doing so.
To save him some time on the way to meals? Or some other reason.
Suddenly, Kael thought of something, and he quickly looked up at the other people in the auditorium.
They were still eating and chatting as before, but Kael noticed that their bodies had become a bit fainter, as if they were fading.
The first time he noticed this was a few days ago in the Charm class, realizing Professor Lagoer's bald head was not as shiny as before.
However, he was so focused on studying changes in magic at that time that he subconsciously ignored it.
Now thinking about it, could it be that the Room of Requirement is about to restore itself?
This is the only explanation for now.
If that's the case, then saving some time is very necessary.
Thinking of this, Kael didn't stay in the auditorium any longer and went back to the common room to have a good rest for the night.
He also took out the Two-Sided Mirror to explain the situation to Conna... The gift he prepared came in handy.
"You're trapped in the Room of Requirement and can't get out?" Conna was very surprised upon hearing the news and said urgently:
"I'll go find Professor McGonagall to ask her."
"No need." Kael hurriedly stopped her, "Professor McGonagall didn't even know there was such a place in the school, she probably can't help, and I don't need it for now."
"What do you mean?" Conna asked, "How are you eating in there?"
"Someone brought this." Kael waved the golden plate in front of the Two-Sided Mirror, "Someone must have modified it so that food from the kitchen can come directly here now."
Seeing Conna still doubtful, Kael directly said, "Your dinner was sandwiches, fried ham, and roasted potatoes, with pickles in the sandwiches."
This time, Conna believed him.
"I didn't know what to do just now." She frowned slightly, "If even Professor McGonagall can't help, surely the other professors can't get you out either!"
"What about Dumbledore?" Kael asked.
"He left the school just an hour ago," Conna blurted out.
"How do you know? With such precise timing."
"Of course," Conna said, "He suddenly received a letter during dinner and then hurriedly left, almost everyone saw it... But you certainly didn't."
"No need for you to remind me," Kael said irritably.
Perhaps it was an illusion, but after knowing there was no need to worry about the food issue here, Kael felt that there was a trace of glee on Conna's face.
But Conna definitely didn't admit it.
...
The two talked for an hour before Kael put down the Two-Sided Mirror.
After that, he stayed in the Room of Requirement.
During this time, the colors of the people around became increasingly faint, and Kael no longer chose to balance work and rest, instead seizing every moment to shuttle between different classrooms.
He almost attended sixteen hours of classes every day, and for the remaining time, he spent half of it in the library.
When he really couldn't hold on, he used Stimulant Potion or the Rejuicing Potion given by Conna to bolster himself.
The golden plate was always there, providing Kael with three meals a day on time, never late even for a minute.
Moreover, it wasn't fixed in the auditorium, Kael could take it anywhere, saving a lot of time.
Until one day.
After finishing his notes, Kael looked up once again and found that everyone in the classroom had disappeared.
Kael went outside again, but it was the same in the library or auditorium, with no one there, and the surroundings became incredibly quiet.
Then, before Kael could react, the castle also began to disappear, bit by bit.
It was as if someone took an eraser and started erasing this place.