The surrounding students saw the exam papers in Ron and Harry's hands and gave up asking Scarlet questions on certain questions.

After this gossip story, the students' fear of Blake has disappeared.

Everyone began to discuss separately, some discussing how Black had infiltrated Hogwarts Castle, and some discussing Scallet's revelations.

In the discussion between the girls and Scarlett about skin care, Zhang Xu estimated that the time to turn off the lights had come.

Zhang Xu asked Scarlett, "What time is it?" ”

Scarlett: "Ten o'clock. ”

Zhang Xu: "Is it whole?" ”

Scarlett: "It's still early, it's not neat. ”

Zhang Xu: "Am I asking at ten o'clock?" ”

Scarlett: "The student hasn't slept yet, and it'll be right at eleven o'clock." ”

Zhang Xu: "I'm asking if it's ten o'clock?" ”

Scarlett: "You'll know you're going to die later." ”

Zhang Xu: "I mean, it's ten o'clock?" ”

Scarlett: "It's all right, it's all right now."

Zhang Xu: "......"

Zhang Xu, who took a moment to react to what Scarlet was saying, wordlessly extinguished half of the candles in the cafeteria, reminding the students that it was time to go into sleeping bags.

Fortunately, the two of them spoke Chinese, otherwise a group of little girls around them would have gossiped again.

Soon, the students got into their sleeping bags, but no one listened to Zhang Xu's order to forbid everyone to speak, and the whole cafeteria was filled with whispers. Zhang Xu and Scarlett didn't say anything about it.

All the candles went out in an instant, and Harry finished his math paper half a minute before the candles went out.

The enchanted ceiling is like the sky outside, full of stars.

Zhang Xu sat on a chair by the door, looking at the starry sky on the ceiling.

"What are you thinking?" Scarlet moved a chair and sat down beside Zhang Xu.

"A song comes to mind." Zhang Xu said.

"Oh, sing it." Scarlett looked curious.

Zhang Xu looked at the students around him who were starting to sleep, and turned on the sound transmission and secret function to Scarlet.

The dark sky hangs low

Bright stars follow each other

Bugs fly

Bugs fly

Who are you missing?

The stars in the sky weep

The roses on the ground withered

The cold wind blows

The cold wind blows

As long as I have you with me

Bugs fly

Flowers sleep

One pair after another is beautiful

Not afraid of the dark

I'm just afraid of heartbreak

It doesn't matter if you're tired or not

It doesn't matter what the southeast and the northwest

After singing the song "Insects Fly", Zhang Xu and Scarlet did not speak.

After a long time, Scarlet asked; "Who taught you this song?"

"Nie Feng." Zhang Xu said.

Both fell into a long silence.

At about three o'clock in the morning, many of the students finally fell asleep, and at this point, Professor Dumbledore entered.

"Have you found any trace of Black, Professor Dumbledore?" Scarlett asked.

"Nope. How's it going to be here?" Dumbledore replied.

"Everything is safe here." Zhang Xu said.

"Good. Now you don't have to let them change places. I've found a temporary guard for the Portrait Cave in Gryffindor. Tomorrow you can call everyone back. Dumbledore said.

"What about the fat lady?" Zhang Xu asked.

"Hiding in the map of Angel County on the third floor. Apparently she wouldn't let Blake in without asking for an order, so he did it. She was still in a terrible mood, but once she calmed down, I asked Filch to fix her. Dumbledore replied.

Then there was another sound of footsteps outside the door, and it was Snape coming.

Dumbledore, along with Zhang Xu and Scarlet, met Snape outside the cafeteria.

Snape reported the results of the search to Dumbledore, and no trace of Blake was found in the castle.

After the debriefing, Snape asked, "How did he get in, and do you have any insight on that, Headmaster?"

"Many, Severus, each one is as impossible as the one below." Dumbledore said.

Snape then repeatedly stressed his suspicions about Lupin.

Dumbledore warned Snape not to think so.

Only Zhang Xu, who was standing on the side, knew that the person who brought Black into Hogwarts Castle was actually by their side.

For the next few days, everyone at the school talked about how Blake got into the castle.

"Tea time after school" gathers almost every night to study the problem, but no one has a clue. They had searched all the secret passages that the Weasley twins knew, and found no sign of anyone walking through them. The Screaming Shack had been cast by Zhang Xu early in the morning to prohibit people from entering Hogsmeade. For a while, everyone couldn't find a clue.

One day after dinner, Harry was called to the Headmaster's office.

When Harry walked into Dumbledore's office, he noticed that the atmosphere in the office was very wrong.

Harry saw that Dumbledore was looking at him with a smile on his face, Professor McGonagall seemed to have just finished his anger, Lupin had a serious face, and Zhang Xu was in a daze.

Professor McGonagall said to Harry very seriously, "There's no need to hide it from you, Potter. I know it's going to come as a shock to you, but Blake ......"

"I know he's chasing me," Harry said, "Professors Scarlett and Lupin have told me, and I've heard Ron's dad tell his mom. ”

McGonagall seemed surprised. She glared at Lupin, and then came over for a moment before saying, "I see! Well, then, Potter, you can understand why I don't think it's a good idea for you to practice Quidditch in the evening. On the pitch, with only your team-mates around, you're very exposed, Potter. ”

"We have our first game on Saturday! I've got to train, Professor!" Harry said. For the sake of Quidditch, he dared to argue with Professor McGonagall.

"Now we have a plan, Harry." Lupin also said with a serious face, "But this will put you in danger." ”

"I'm not afraid of danger." Harry said firmly.

"That's you train as usual and lure Blake out." Lupin said.

"It's too dangerous, Lupin." Professor McGonagall exclaimed, "If something happens, Potter will die." ”

"I think it's up to Harry to make his own choice." Lupin said.

"I do." Harry nodded.

Seeing that Harry agreed, Dumbledore nodded to Zhang Xu, who was sitting next to him.

"Since you're willing, then you can wear this in training these days." Zhang Xu, who had been silent, handed Harry a green vest-like object after receiving Dumbledore's signal.

"Then the basilisk will wear armor from its peeled skin, and it will save your life if necessary." Zhang Xu explained.

Then Zhang Xu took out a rope made of thin rope of various colors, "This rope ties it to your broomstick, it can resist the evil spell against your broom." If this rope smokes, you immediately return to the surface and return to the castle under the protection of the Professor. ”