Sherlock has never thought about whether he can catch the murderer behind the scenes, but he feels that it is still very likely to find the old book.

He hadn't forgotten what he had discovered before about a student, but now he has at least a target of doubt.

"Password?"

The portrait of the fat lady in front of Gryffindor asked perfunctorily as she yawned.

She has been notified that a professor will search the lounge next, and asking a password is just a routine matter.

"Dragon Slag."

After reporting the correct password, the portrait of Fat Lady opened the entrance to the lounge and let Sherlock enter.

When introducing freshmen to new students, the chiefs of each college boast about their college lounges. It has been hundreds of years since outsiders have been in.

Sherlock felt that these words were probably fake.

Although there are different ways to guard the entrances to the lounges of the four academies, these simple guards cannot be stopped as long as there are wizards who really want to enter.

Like him now, with Dumbledore's permission, a graduate of Ravenclaw walked into the Gryffindor's lounge in a noble manner.

Sherlock didn't have much serious desire to peek at, and he was not interested in what these students had hidden in the dormitory.

After entering here, he went straight to the boys' dormitory, and Professor McGonagall searched the girls' dormitory.

Even the restless Gryffindor was not very messy in the dormitory.

This is not how hard these little lions are, but that they have hard-working house elves to clean them every day.

Searching the dormitory is not a big problem. Sherlock just waves his wand after entering and uses a flying spell to summon all the books in the room to him.

After checking that there is no problem, just let all the books fly back to their original position.

But after entering a room that seemed to be the same as other dormitories, Sherlock's attention suddenly became extremely focused.

He saw the signatures on the parchment paper on the desk.

This is Harry and Ron's dormitory.

However, his focus was not on Harry and the others.

Like other dormitories, after using the Feilai Curse to detect that all the books in the dormitory were not a problem, he walked to the four-poster bed with the name Neville Longbottom, and carefully inspected all of Neville's items.

As a result, no abnormal items were found.

Sherlock frowned, and he checked everything related to Neville in this dormitory, and the result was still the same.

In the end, Sherlock had to leave Gryffindor's lounge. After checking Ravenclaw's boy's dormitory, he also found nothing.

At eight o'clock in the evening, the four professors in charge of the search gathered in the corridor in front of the auditorium.

"I didn't find anything here." Professor Sprout, who searched Slytherin and Hufflepuff girls' dormitories, shook his head and said.

Needless to say, Sherlock could also see the rest from the faces of Professor McGonagall and Snape, and they also found nothing.

He touched his chin and turned his gaze to the auditorium gate.

"Let's take a look at the students' situation first. The bewitched student might have kept the book with him."

The professors turned their attention to the auditorium gate together, and now this is the only possibility.

They walked into the auditorium. Professor Flevy happened to cooperate with Felch to count all the students in the auditorium.

It is confirmed that except for the three students lying in the school hospital at the time of the attack, everyone else is here.

There are five professors gathered in the auditorium now.

Four deans, plus Sherlock, a professor of the special Black Magic Defense class in Hogwarts.

Students are divided according to colleges, and the dean of each college is responsible for checking students in their colleges.

Of course, they did not say that they were searching for old books, but observed each student quietly.

Sherlock had come into contact with that old book, which was not very thin. If you were always carried with you, you could clearly find it, especially when most students are wearing pajamas.

Sherlock came to the rest area of ​​Gryffindor with a clear goal and found Neville, who was sitting on the ground in a daze.

"Mr. Longbottom."

Neville heard Sherlock's voice and his body shivered in fear. He raised his head in a slight panic.

"Fu, Professor Forrest."

When Sherlock saw his reaction, he further confirmed his guess.

Neville must have something wrong!

After some clues in the principal's office, he had already felt that it was most likely that the mark on his left arm that reacted when he was in the bookstore was not the Malfoy and his son, but the old book.

After arriving at Hogwarts, this burning reaction happened to Neville again.

This had to remind Sherlock of them.

"Mr. Longbottom, can you tell me where you were when Malfoy was attacked?"

Sherlock asked faintly.

However, his eyes did not look at Neville's eyes, but were looking at what was on Neville.

Neville seemed nervous when he asked this and said stammeringly.

"I, I was with Semo and the others, and I was doing potion homework in the dormitory."

Before Sherlock could ask again, Semo on the side said on his own initiative.

"Yes, professor, I can testify for Navi!"

It doesn't matter where Neville was when Malfoy was attacked. When the snake monster launched an attack, it didn't necessarily have to ask its owner to watch. Sherlock asked this just to make excuses to talk to Neville.

But the result disappointed him again.

Neville had already changed into his pajamas at this time, and there was no place for him to hide anything, let alone such an obvious old book.

Sherlock, who had no gains, did not continue to ask more questions. He was also worried that he would be alarmed. If he would make the old book angry, it would be a big shot in Hogwarts and then slip away.

The examination of the students was soon over, and the five professors gathered together again, and none of them found anything.

Professor McGonagall's face looked ugly, and she turned and left the auditorium.

"I'll go find Albus and see if he has any other solutions."

Professor Sprout sighed and shook his head.

"I'll go and let the students sleep."

Professor Flevy went over with her, leaving only Snape and Sherlock standing on the platform, watching the students who were getting into the sleeping bag and ready to fall asleep under the instructions of the two professors.

"The result was not as you said." Snape said coldly.

Sherlock was also very depressed, and he also said coldly.
Chapter completed!