On a secluded street, the buildings on the left and right sides look like they are a bit old.

According to the address analyzed previously, the three of them quickly arrived in front of a house.

The ancient houses may have a century of history, and the European architectural style seems so simple and solemn.

Walking on the pebbly steps, the three of them arrived at the door.

The seemingly ancient building doors actually have a security lock.

This smart lock must provide a password and fingerprint, otherwise an alarm will be activated.

"This building looks ordinary, but I'm afraid it's not that ordinary."

Tang Yi stood at the door, checked for a while, and said to the two girls.

This seemingly ordinary wooden door is cold to the touch.

Obviously, this is an iron gate, but the appearance is made of imitation wood.

When looking at the window, the same is true, especially the not-transparent glass, which turned out to be bulletproof glass.

So this ordinary residence is actually not ordinary, it is definitely at the fortress level.

"My teacher has many friends, and I only met a very small part. One of them was specialized in defense. He only participated in the research of B2. Later, he was obsessed with the trap of mechanisms. I'm afraid this is because of his hands."

Shen Mengyao didn’t know who those crazy old men were, but each of them was the absolute king of a certain field.

Such strict defense equipment may only be the tip of the iceberg.

Otherwise, if you don’t need it for many years, you will still not be destroyed in such a chaotic city, and there will be secrets.

"Will we explode as soon as we press it?"

When he was underground, Li Yun heard a lot about the professor.

For research, the school building almost exploded, and to give lectures to students, all the students almost poisoned to death.

Li Yun was still scared when he heard all kinds of weird things.

"It shouldn't be possible, but the professor didn't leave a password."

Looking at the password lock on it, Shen Mengyao was also a little worried.

Especially since the professor did not leave a password, how should she get in?

"Try fingerprints, maybe it's useful."

After seeing the professor's password, Tang Yi didn't think Shen Mengyao could guess it.

Fortunately, this lock is a fingerprint password dual input.

Shen Mengyao nodded. In fact, she didn't know what she would look like if she failed.

After all, those crazy guys can never guess the brains.

"Ding bei!"

Just as Shen Mengyao pressed her thumb on the fingerprint reader, the red light flashed.

The entire iron door actually opened slowly.

"The professor has indeed entered your fingerprint, and it seems that he plans to bring you here too."

Li Yun said in surprise, and walked inside at the same time.

When they walked through the door, they were shocked to find that the seemingly ordinary door was more than twenty centimeters thick.

It was completely made of steel plates, enough to withstand the bombing of a shell.

"boom!"

The door closed behind him, and the lights in the room automatically lit up.

In front of me was a seemingly ordinary arrangement, with dust falling on the tables, chairs, benches and sand.

"No matter how you look at it, it's a residential house!"

The surrounding decorations are no different from ordinary people.

Li Yun stepped forward and touched her hands, covered in dust.

It seems that no one has come to this house for a while.

"Look first and then talk about it."

The whole house is a three-story building with European furniture inside and a comfortable large bed in the guest room.

Tang Yi stepped upstairs and searched first.

Six bedrooms, three utility rooms, and all kinds of furniture are available.

Li Yun also searched the kitchen and storage room, but did not see anything wrong.

There is nothing except dust.

Chen Mengyao's attention was placed in the study.

There are three bookshelfs full of books, but they are not placed in scientific books.

There are kitchen recipes, children's readings, and some commercial books.

After searching for it, nothing was wrong.

"This is strange."

The three of them returned to the living room on the first floor.

I searched carefully, but nothing happened.

If it weren't for the unique shape and the structure of this gate, they might have thought they had taken the wrong path.

"This is very strange. With such a good defense system, why does it protect an ordinary family? This is absolutely wrong."

Tang Yi sat on the sand. He knew something was wrong, but he couldn't find any problem.

I have searched every room, even in the corner.

There was no switch or mechanism, and the three of them were stunned.

"Only this picture proves that there should be a scientist living here."

Li Yun sighed and looked at the portrait of Einstein on the wall.

There is another line of words under the portrait, which should be a famous saying he said.

"Working constantly with a lofty goal support, even if it is slow, you will definitely succeed."

Simplicity and logic should also remind people of anger and strength.

Li Yun's words made Chen Mengyao look at the portrait on the wall and suddenly stunned.

Einstein is the scientist the professor admires the most, so it is not surprising that he has his portrait here.

"It seems that something is wrong, that sentence is not smooth!"

Suddenly, Chen Mengyao stood up, walked forward of the portrait, and looked at the lines of words carefully.

As for Tang Yi and Li Yun, they can be said to be a layman, and they don’t know this scientist.

"It should be that, with the support of a lofty goal, working continuously, even if it is slow, you will definitely succeed. How did this support become support? This is obviously a bad sentence, and the teacher didn't even see it."

Chen Mengyao naturally knows the professor's idol very well.

Such an obvious wrong sentence, how could it appear here?

"Yes, it's not the top, but the bottom. This is a reminder. Do you still remember it? I mentioned it when I was living underground a few days ago. In fact, there are many large air raid shelters under the bustling traffic in Mexico City. Do you think there will be some below?"

An inspiration jumped out, and Tang Yi stood up happily.

The complex underground passage was prevented from air strikes during World War II.

Although this neighborhood is not connected to the other side, it will definitely not be missing such large-scale underground projects.

Adding this obvious wrong sentence, isn't this a prompt that the entrance is not on top, but on bottom.

"Yes, it's very likely!"

Li Yun slapped his head, but Tang Yi was still spinning fast.

As for Chen Mengyao, he also agrees with Tang Yi's analysis very much.

So the three of them hurriedly searched on the ground. After searching every corner, Chen Mengyao suddenly found a floor that was alive.

"Ding bei!"

When Chen Mengyao's palm was placed on the floor, it turned out to be an identifier.

With a dripping sound, the ground suddenly collapsed, and a dark hole appeared in front of the three of them.

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Chapter completed!