Did Dumbledore know that Voldemort had infiltrated Hogwarts? He shouldn't have known.

Many people imagine Dumbledore as an old man who is not a fool, but Dumbledore is only a mortal after all, not omniscient. If he knew that Voldemort was in the back of Quirrell's head, he would not have allowed Quirrell to continue to fall at Hogwarts under any circumstances.

Harry Potter had a blood protection charm left by his mother, and was able to protect himself from Voldemort's clutches. But the other students at Hogwarts didn't have this level of protection, so how could Dumbledore risk so many students from the school?

Of course, Dumbledore could detect Quirrell's anomaly. To that end, he instructed Snape to keep an eye on Quirrell. Both Dumbledore and Snape thought that Quirrell was under Voldemort's remote command, and they wanted to dig out Voldemort behind him through Quirrell, but they didn't expect Quirrell and Voldemort to be so closely connected.

"Fawkes."

Dumbledore called softly.

A crimson bird suddenly appeared out of the air, it looked the size of a crane, and stepped on Dumbledore's shoulder.

"Go and tell the four deans to come to me for a meeting."

The phoenix chirped and left the principal's office with its wings spread.

A moment later, the four headmasters hurried in, and Dumbledore showed them Luo Cheng's memories and explained the situation to them.

"You're following me."

Snape's face was gloomy, his greasy black hair hanging like a curtain around his thin face, and he wore his usual black cloak instead of pajamas, more formally than the other three deans who were still in their pajamas.

"I'm sorry, Professor Snape, but I'm just curious."

Luo Cheng snorted, he knew that he had offended Snape this time. But so what? Anyway, he has already submitted his name, and Lao Deng will protect himself. Besides, he may not lose if he fights with Snape, the Potions Master is not the same as the Duel Master, if it were Professor Flitwick, Luo Cheng would still have to fear him for three points, as for Snape...... Luo Cheng is not Lu Ping, so there is no need to beg him for wolf poison potion.

"Now is not the time to pursue this, the focus is on Voldemort, Severus."

Dumbledore did stop Snape from continuing to attack. "We're going to get to Quirrell."

"The Headmaster is right, Quirrell can't be allowed to stay at Hogwarts." Flitwick said in a sharp voice.

"But I don't understand, what is Voldemort's current form? He was attached to the back of Quirrell's head, no one was a ghost, what spell could get rid of him? Professor Sprout said, "Would you like to try my mandrake?" Its cries also have an effect on ghosts. ”

"I guess we'll just have to deal with Quirrell." Professor McGonagall said solemnly, "Voldemort must be quite weak now, which is why he has to use Quirrell to carry out his plan. ”

"That's right, if the Dark Lord still has the power, he will show up and order me when I press Quirrell."

Snape said, his eyes shining with vengeance: "He must be so weak that he even needs the blood of a unicorn to maintain his condition, and to prolong his life with pure blood is a curse." He didn't dare to appear in front of me, and he didn't go to Lucius and them, which means that he was afraid, he was afraid. ”

"So, find Quirrell quickly, if you can keep Voldemort, you can stay, and if you can't, you will inflict a wound on him that he will never forget."

Dumbledore gave the final word on this pre-war mobilization.

"Fawkes, go find Hagrid and ask him to take us to the Forbidden Forest to track down Quirrell, unicorns are not easy creatures to catch, it should be too late!"