Professor McGonagall was about to enter a room when she heard the shouting, and turned to see the familiar figures, also with a look of surprise.

"Mr. Scamander...... Why are you here? ”

"I've come to the Department of Mysteries to request a copy of Azkaban." Rove walked over to Professor McGonagall and smiled, "Professor, what are you doing here?" ”

"I ......" Professor McGonagall hesitated for a moment, glanced at Hermione out of the corner of her eye, and said softly, "I'm here to do something for Professor Dumbledore." ”

Rove thought about it, and suddenly realized that Professor McGonagall was probably here to help Hermione apply for a time turner.

Hogwarts students had to choose classes in their third year, and Hermione chose all the courses, which was a conflict in time...... A time turner is required.

Of course, not everyone can apply for a time converter, and they must be guaranteed by the school to prove that the student is of good character and academic performance, and the Ministry of Magic must approve it.

A student like Rove may be difficult to apply for, and his "learning" is indeed excellent, but his immediate family members are the key targets, and he belongs to the category of students who are not qualified in the "political examination".

At this moment, the circular wall of the hall suddenly rotated and made a loud rumbling sound, and the blue candles on the wall formed a brilliant halo.

Soon, the rumble died down and everything was calm again.

Rove looked up and surveyed the room.

It is an ancient Greek amphitheater-style hall with black marble walls and floors.

Twelve black doors, evenly spaced across the walls, were identical, without any markings or handles.

As the walls rotated, the position of the doors was completely disrupted, and it was no longer possible to tell which door was the original entrance.

Seeing that several people were looking around the room, Professor McGonagall explained:

"There are a total of twelve doors in the hall of the Department of Mysteries, one of which is an exit that leads to an elevator.

Eleven other doors lead to ten special rooms, as well as an office. ”

"Professor McGonagall, what's going on with the rotation of the walls?" Hermione wondered.

"It's a lot like the Hogwarts stairs." Professor McGonagall said:

"Every time you enter a room and back into the hall, the walls rotate and randomly disrupt the positions of these doors."

"So how do we find the room we want to go to?" Shirley asked, "Is it luck?" ”

"Maybe ......" Hermione thought for a moment and said smartly, "we can make a mark on every door we enter, and even if the walls rotate and shuffle, we know which rooms we've entered." ”

"Nope." Tonks said suddenly: "These doors have magic on them, and the mark will disappear automatically if it doesn't last long." ”

"That's right." Professor McGonagall patiently explained, as if she were lecturing in a Transfiguration class:

"Actually, it doesn't have to be so complicated, just choose to take the first door on the right every time you enter a room, don't go back, and don't pay attention to the other doors...... If you keep walking, you will be able to walk through each room without repeating it. ”

Professor McGonagall casually pushed open a door, and she whispered, "Come with me." ”

Everyone followed Professor McGonagall into a square room.

The room was almost empty, except for a large glass tank of dark green liquid in the center, and many milky white things were floating around in the liquid.

"What is this?" Shirley asked, looking at the milky objects.

Rove observed, and they appeared and disappeared in the depths of the green liquid, shining eeriely, like cauliflower in a sticky lake.

He endured his nausea and said, "Brain." ”

“……”

"Why does the Ministry of Magic keep this kind of thing?"

"I've heard Professor Dumbledore say it before......" Professor McGonagall whispered:

"The Department of Mysteries is studying how brains produce thoughts, and they're also studying how Muggles, Squibs, and wizarding brains differ.

In short, these things are dangerous, they like to cling to other people's heads, sucking out other people's minds, and turning wizards into fools. ”

Hearing Professor McGonagall say this, everyone suddenly moved away from the pool.

Professor McGonagall walked to the first door on her right, pushed it in, looked at the boy again, and asked:

"Rov, why are you back now?"

"I have to come back because of Peter, Professor."

"Are you alone?" Professor McGonagall asked. "Are Newt and Tina back?"

"Nope." Rove glanced at Professor McGonagall and said, "But Professor Hicks and I are here, and she's at Hogwarts." ”

"Oh, is Professor Hicks here too?" Professor McGonagall smiled, "I'll go back to school and see her later." ”

"I'm afraid Professor Hicks won't be able to see you for a while." Rove cautiously glanced at Professor McGonagall's face and asked, "You didn't go back to school yesterday?" ”

"Nope." Professor McGonagall wondered, "What's wrong?" ”

"Professor Hicks' airship has crushed the ceiling of the Gryffindor common room." Rove whispered.

“……”

Professor McGonagall, who had been in high spirits, suddenly stopped talking, looking a little autistic, and apparently the teenager had brought her not very happy news.

They soon enter the third room, which is filled with fossils and specimens and looks a lot like a mysterious circus.

On the shelves in the aisles, there are bottles and jars of different shapes and sizes for the storage of species, containing specimens of various magical creatures.

Salamanders, stinger jellyfish, Mithras rats...... There were also a lot of specimens, things that Rove didn't recognize.

In addition to specimens, there are all kinds of ancient fossils, those extinct magical creature fossils, which are spliced together to restore the appearance of their lives.

A group of people walked down the aisle to an old, gray wooden door, which was cracked and looked ordinary.

"This is the office of the Department of Mysteries." Professor McGonagall knocked on the door, then turned around:

"I'll go in first, and it will be your turn in a moment, do you know how to get out?"

"Go back the way you came." Hermione thought for a moment and said, "Take the door on the left?" ”

"Nope." McGonagall shook her head and said, "Come and go the same, keep going through the door on the right, and finally go back to the original hall, then take the door on the right, and leave." ”

The door creaked open, and a pale, middle-aged man walked out.

Professor McGonagall looked at the man and asked curiously, "What about Mr. Saul Crocker?" Previously, he was in charge of reviewing my application. ”

The middle-aged wizard said expressionlessly, "Mr. Croch is on sick leave, and I'll receive you, Professor McGonagall." ”

Professor McGonagall nodded, and she walked into the office, leaving Rove and them in the room.

At this moment, Shirley suddenly pointed to the distance and said, "Rove, look at that!" ”

Rove looked in the direction of the ponytailed girl's finger and saw the skeleton of a fiery dragon.

His eyes widened, because the fossilized dragon bone was more than a hundred meters long.

Rove looked at Shirley and said incredulously:

"It's ...... The fossil that was lost in the Romanian Dragon Sanctuary? ”

……

……