Brook was also awakened by Hermione and Harry's voices.
He turned to look at the two of them and immediately felt a toothache coming on.
Hadn't he already taken away the Flying Broomstick?
How exactly had these two managed to get in here?
"Why you?"
Harry felt like a complete idiot.
Brook had warned him so many times, yet he had stubbornly believed that Snape was the one trying to steal the Philosopher's Stone.
And now, the real mastermind was Quirrell, the person he had trusted without question.
That enormous psychological blow was hard for him to accept for the moment.
"Yeah! Compared to the annoying Snape, stammering, timid Quirrell really was the more suspicious one, wasn't he?"
As Brook spoke, he walked toward the Mirror of Erised.
"Don't move!" Hermione shouted, waving her wand. "Petrificus Totalus!"
With a casual wave of his hand, Brook conjured a pitch-black shield out of thin air, blocking the spell.
He directly put away the mirror.
"Petrificus Totalus!"
"Petrificus Totalus!"
"Four-Split!"
"Four-Split!"
Hermione constantly changed positions, trying to find a flaw in the shield's defenses.
But that black shield seemed capable of sensing spells automatically.
It shifted its position on its own, blocking every spell they cast.
"Harry, what are you hesitating for? You have to stop him, stop Voldemort!"
Hermione shouted anxiously at Harry.
Harry finally snapped out of it. He raised his wand and attacked from the opposite direction from Hermione.
"Densaugeo!"
"Tarantallegra!"
"Rictusempra!"
But no matter how hard they tried.
The shield blocked the left, then the right, always intercepting their attacks in time.
Meanwhile, Brook was thinking.
What spell should he use?
Naturally, he knew magic like Petrificus Totalus as well.
But without using Dark Arts, its effect in his hands would probably be worse than Hermione's.
As for something