Sun Mo recalled the process of getting to know the old man again, and his eyes returned to Su Ji, because this was the old man's only legacy.

"It's over. This thing is just like a heavenly book. Who can decipher it?"

Yunyao kicked the metal door angrily.

Su Ji's little face was also full of frustration. There is nothing more depressing than arriving at the treasure house only to find that you can't get in.

"Su Su, look carefully at the wall. You should have learned how to crack it!"

Sun Mo suggested.

"ah?"

Su Ji was dumbfounded.

"Are you confused with a fever?"

Yunyao reached out to touch Sun Mo's forehead: "Su Ji is a seven-year-old girl who has just entered the second grade according to the normal age. You want her to solve Eden's access control problem?"

"Don't underestimate anyone!"

Sun Mo chuckled, put down his backpack, and started to set up camp, preparing for a protracted war.

When Su Ji saw that Sun Mo didn't act like a joke and really regarded herself as hope, her little face gradually became tense, then she walked to the door and started to think seriously.

Grandpa said, don’t let down those who believe in you!

Such a powerful big brother thinks I can do it, so I will try my best.

Su Ji watched this for a long time, until the starry night hung low.

"Susu, go to bed early and see you tomorrow!"

Yunyao got into the sleeping bag, shouted twice, and found that Su Ji was still distracted, so she got up and prepared to put a coat on her.

Su Ji suddenly jumped up.

"I understand, these symbols and patterns are a kind of mathematical language. They should be able to form a certain formula. Once solved, it will be the password to open the door."

Su Ji was very excited, opened his notebook, and started calculating.

one day!

Two days!

…

One month has passed!

Suji's whole body lost weight.

"Why don't we give up? The three of us can go back to live in the subway gathering place. Those supplies will not be used up until the three of us die."

Yunyao sighed.

Suji only slept for five hours a day, and spent the rest of the time sitting in front of the metal door thinking, if she continued like this, she would die suddenly.

"Go and ask Suji for his opinion!"

Sun Mo knew that if he cracked it, he should be able to clear this black and white game and return to Kyushu, but he couldn't bear to see Su Ji working so hard.

Yunyao is a kind and simple good girl. Even if Eden is close at hand, she can give up easily because in her opinion, the lives of her friends are more important.

"Suji, let's go home!"

Yunyao pulled Su Ji up.

"Sister Yun, when I was a child, my grandfather always gave me math classes every night and forced me to do some weird math problems. I thought I was talented in this area. It wasn't until now that I discovered that my grandfather wanted to pass on the 'key' to me.

Give me."

Yunji said, broke away from Yunyao's hand, walked towards the metal door, and then started touching the symbols on it.

One minute later, ninety-nine touches ended and the metal door unlocked.

Without any sound, the metal door slid to the right quietly, and a passage with silver walls appeared in front of the three people.

"Brother, I did it!"

Su Ji turned around, smiled sweetly at Sun Mo, and then fainted.

She has exhausted too much energy this month.

Snapped!

Sun Mo had quick eyes and quick hands and hugged her.

"Thank you!"

Sun Mo suddenly understood the old man's methods.

I asked him at that time, wasn't he worried that he would abandon Susu after knowing the coordinates?

The old man convinced himself with three reasons. In fact, they were all lies.

Just knowing the coordinates is useless, because 'Su Ji' is the key to opening the door to Eden. If Sun Mo abandons Su Su, it will be a burden. If he abandons her, then if he stands here alive in the end, he will only be more desperate.

Because you will understand that you threw away the key with your own hands and ruined your hope.

"Come in now?"

Yunyao swallowed her saliva, feeling a little excited and a little nervous.

"Wait until Su wakes up!"

Sun Mo was not in a hurry, since Eden was here and couldn't run away.

More than two hours later, Su Ji woke up, and after eating the nutritious meal specially prepared for her by Sun Mo, the three of them entered Eden.

After carefully wandering around for a long time, Sun Mo confirmed that this place is a shrinking ecological circle, with both natural environment and cities.

"Be careful!"

Sun Mo reminded because he saw an old man sitting at his desk reading in the library.

Hearing the footsteps, the old man raised his head and looked at the three people in astonishment.

He didn't expect that someone could actually find this place!

"Hello!"

The old man smiled and stood up to greet him.

"Hello!"

Yunyao and Su Ji were a little embarrassed, because they felt a special temperament from the old man. His body did not look strong, but his eyes were stern and closed, shining as if he had seen through the world.

This is a learned and wise man!

Sun Mo was holding the pistol, ready to fight back at any time. As for questioning, Yunyao, a simple girl, would take the initiative to ask.

"Eden? This is it!"

The old man said calmly: "A lot of embryos, seeds, knowledge, etc. are indeed preserved here."

Yunyao and Su Ji asked enthusiastically, as if they had found the seeds of hope, but Sun Mo noticed something strange in the old man's attitude.

He was too calm, as if he didn't care about the world.

etc!

Do not care?

Only players from Kyushu don’t care about these NPCs, right?

Sun Mo looked at the old man and suddenly interjected: "May I ask the name of this famous teacher?"

Whoosh!

The old man's eyes suddenly stared over, full of scrutiny, and then became pleased.

"What's your name? Who is your personal teacher?"

In the old man's opinion, the only people who can say the word "famous teacher" are people from Kyushu, and the only ones who can enter the black and white game are probably the students of the black and white academy.

And these are all our own children.

That's right, this old man is Principal Song, who has been involved in the black and white game for more than five years.

"Student Sun Mo is a famous teacher at Zhongzhou Academy!"

Sun Mo saluted.

This person might be a saint, so Sun Mo held the rite of discipleship.

"Zhongzhou University? The one with Principal An?"

Principal Song frowned and became angry: "Old Wan is really fooling around. How can you let famous teachers from other famous schools come to such a dangerous place?"

In Principal Song's opinion, just let these outsiders play an ordinary black and white game. Playing this kind of game where you may not be able to get out after entering is simply a scam.

However, Principal Song could also reason that Master Sun must be talented and a rising star in the circle of famous teachers, otherwise he would not be eligible to get Wan Kangcheng's permission to enter the black and white game.

"What star are you now?"
To be continued...