All the students of Ravenclaw laughed.

One of the girls said without hesitation: "Extraordinary wisdom is the greatest wealth of mankind."

They quickly arranged in the correct order, and in a dazzling light, the magic text above disappeared, replaced by a string of gorgeous and elegant English glittering on the wall: "witbeyond measurei**an's greatesttreasure."

"That's right! That's it. This wall clearly represents Ravenclaw, and the other three walls..." Percy said excitedly.

“Represents the other three academies!”

Everyone thought of this.

Under the guidance of this kind of thinking, the magic texts on the other three walls were also cracked one after another.

"Courage and fearlessness are my best friend." This is a famous saying by Godric Gryffindor.

"Tough, honest, honest and loyal." This is what people say about Hufflepuff.

"Accompanying with honor and strength." This is a famous quote from a famous Slytherin wizard in history.

On the four walls, four lines of text shone brightly, and everyone subconsciously held their breath. Sure enough, the handwriting on the wall disappeared.

In the darkness, only the light emitted by the wand in their hands acts as a source of light, and these unobtrusive lights illuminated their excited faces.

An ordinary door appeared, as if it had been there all the time, and the students walked in.

There is only one table inside, and there is a manuscript on the table, with the name: "A Important Manuscript".

Jeffrey turned the first page and said: "Collection of four keys and you can get out of here." Apart from that, there was a blank space

He snorted, "Do we still need a key? Just push the door open and go out..." He suddenly stopped talking, as if he was choking in saliva. A layer of sweat quickly emerged from his face, "I, can we still find the classroom door?"

Looking at each other, Percy said to the air: "Professor Hayp... are you here, Professor Hayp?"

No response.

"It seems we have to collect all the keys." Wood scratched his head, "But where are they?"

"Of course it is the four directions of east, south, west and north. Do you still remember the magic text we saw in the tombstone group?" Percy said to Penelo.

"You mean...that story!"

"Yes." Percy said loudly, his nose slightly red from excitement. "The words on the tombstone record the information about this place, but there is actually another thing, one of the keys."

So, the students of Gryffindor and Ravenclaw took out the parchment they recorded before and arranged it as needed.

"I'm 3-1 here, who has 3-2?"

"I'm ahead of you, I'm 1-7."

They glued the parchment paper to the wall in order and looked carefully: "It is obvious that ten are in a group, and there are four in total."

"The first group introduces the background of the operation in 1842, which is similar to Professor Hayp's words..."

"It doesn't matter," said Jeffrey.

Percy rolled his eyes and continued: "The second group introduces the terrain of this place, which is very simple, southeast, northwest, and safe house in the center."

"The third and fourth groups were the troubles that the Ministry of Magic staff encountered at that time. Oh, although the hidden magic failed, other protective measures were still in operation. Look here, one of the defenses was a large number of Yin corpses, which was the little skeleton we met..."

"That's so evil! Why didn't the Ministry of Magic arrest him at that time?"

"Oh, I think it might be because they haven't had time to set up the Ministry of Magic..."

...

“What are the other defenses?”

"Volves, Philosopher's Stone Statue and Devil's Vine." Percy said, pointing to the text above.

"Very good~ It seems we have to deal with similar things," Wood said. "The Yin corpse corresponds to the little skeleton. It seems that there are similar alternatives in other places, but what I want to ask is, what is the Voldegod?"

"A pretty rare magical creature, which looks like a black cloak, gliding against the ground, hunting at night. Some people say that they are close relatives to the dementors. In addition to their similar relationships, they are also restrained by the patron spell," Percy said.

"Who can guard the spell here?" Wood asked.

No one raised his hand.

Percy told part of the truth: "That's not the exam, Wood. No one will do this for a long time to learn a powerful spell that you can't use."

Penelo recalled: "Dean Flivi mentioned this spell in class. I tried it a few times, and there was only some white fog. If someone guided it..."

"But the volley bat is a very dangerous creature, and the professor won't let us deal with it. I guess we will encounter the crow's nest at that time?" Percy speculated, but he believed that ** was inseparable.

"Stop chatting, where do we start?" said Jeffrey.

"We are most familiar with the tombstone group there and can save time."

"very good."

They walked out of the safe house, and Percy put his wand flat on his palm and said to it softly: "Show me the way."

The wand swirled a little and designated his right hand, which was North.

"So we have to go the opposite direction and we will go back to the tombstone group." Percy said to everyone.

They returned to the tombstone group again, and the students of Slytherin and Hufflepuff pointed at the Blackstone tombstone, marveling.

"Look, the skeleton bones have turned into stones." Wood reminded.

The students of Gryffindor and Ravenclaw discovered that all the small skeletons that were originally scattered all over the ground turned into shattered stones.

"We didn't see the clever transformation technique at that time." A male witch picked up a stone and looked carefully.

A girl from Ravenclaw said sadly: "I've held it and it looks cute."

Percy looked at her with a strange look on his face, and he pulled Penelo and whispered: "She has always been like this?"

"She is an avid fan of magic puppets," Penelo explained.

"Okay, it shouldn't be too difficult for everyone to look for it separately..."

After seven or eight minutes, a Hufflepuff student found a golden key in a stone.

“Where did you find it?”

Grover pointed to the broken stone not far away, and Wood widened his eyes, "That was the little skeleton that attacked me, I kept it with me! I didn't expect the key to be hidden in its head."

"Very good, we completed a quarter of the progress, and we will continue to work harder..." Percy was about to encourage him, but Slytherin Chief Jeffrey walked over with a box.

"What's this?"

"A treasure map," said Jeffrey.

"How could this thing happen?" Percy's mind was messy, and the students gathered together, looking at the drawings in the box.

The mark above is very simple. In the southeast of the safe house, there is a pattern of a bottle, next to it is a magic symbol representing wealth.

Just then, a muffled thunder sound came from the sky

"It seems you have a great time...but I have to regret to inform you that this unexpected journey is temporarily over. Take your things and follow the guidance."

An arrow appeared at their feet.

More than ten minutes later, they returned to the ancient magic culture classroom, with a look of confusion and trance on their faces.

"It's over? Haven't you collected all the keys yet?"

On the podium, Felix smiled at them: "The get out of class will be over in a few minutes. In order to avoid you being late, I have to stop this adventure. But don't worry."

"You will be there for the rest of this school year. In addition to the task of collecting four keys, you will also encounter many strange, simple and interesting small tasks..."

"For example, that treasure map?"
Chapter completed!