Liu Yiyi followed Yang Momo's pointing and looked, and a huge stone tablet stood at the door. Everyone gathered around, only to see that the height of Lulan Peak was recorded above: 17,000 meters.

Ah, it's taller than Mount Everest in the Himalayas! Liu Yiyi said excitedly: It's amazing. Aren't we at the bottom of the Grand Canyon? What's going on?

This is called jet lag. Yang Momo said with relish: A sense of alienation! This is how I feel when I stand in the center of our hometown, and I feel like the city center when I stand in the countryside of my hometown; But standing in the center of the city and looking at the countryside, it is the heart of the pot. This is the anti-jet lag, a sense of environmental dislocation in geography. It is also called a sense of alienation.

And the strange Momo, why do you see this stone monument standing in front of the gate? Liu Yiyi asked happily: There is no door in the pagoda hall, how can I get in?

Let me think about it! Yang Momo thought for a moment: Could it be that this stone tablet is the door of the hall on the top floor of the pagoda? It's not easy to get in. Behold, Yiyi, this stele is so heavy and huge, who has the strength to move it?

You mean there are organs? Liu Yiyi shouted loudly: Momo, you are too smart!

Hey, don't praise me, thanks to your reminder! Yang Momo stared at Liu Yiyi very gratefully and said: There must be a mechanism! Yiyi, let's find out where the mechanism is.

Liu Yiyi and Yang Momo searched for a long time and couldn't find the password of the organ. At this time, Liu Yiyi's mind suddenly moved and asked: Momo, is the password hidden in the inscription?

Yes, Yiyi, you see, there are some symbols, patterns, and numbers recorded in this inscription. Yang Momo pointed to the inscription: Look, here is a strange set of number symbols. This first one is a big "O" next to 365.What does this mean?

Qian Yifan and the others were enjoying the majestic scenery of Lulan Peak in the rotating corridor of the pagoda at this time.

Liu Yiyi thought for a while: Hey, isn't there 365 days on the earth?

Oh yes, that "O" means Earth, and 365 is the number of days in a year on Earth! Yang Momo almost shouted excitedly: Yiyi, your brain is spinning faster than me! See, there's also a star sign underneath and 584 next to it. In your thinking, it should represent a star, which means that 584 should mean that the star has 584 days in a year.

By the way, Liu Yiyi also looked at the inscription and thought hard: There are nine planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. I remember that the teacher once talked about it in geography class, and I remember very well that only one of the nine planets rotates counterclockwise backwards, and the number of days of its rotation is 584.

You're saying that's the number of days of the year on Venus! Yang Momo pondered: There is a sun drawn below, and the number 949 is on the side.

Yes, definitely! Liu Yiyi excitedly pointed to the inscription: Hey Momo, I suddenly found out, look, 365 plus 584 is not 949?

Hey, it's just a coincidence. Yang Momo disagreed: Continue to look at Ma Yiyi, there is a river painted below, and there are many stars beating in the river, what does this symbolize? And there is also a set of numbers on the side: 1898. Could it be that this monument was erected in 1898?

How can it be? Liu Yiyi replied casually: Generally, the signature time is at the end of the inscription, and it is uppercase, or lowercase should also have the year, month and day. But this number is in the middle of the inscription. Your statement is not right.

So what does this mean? Yang Momo pondered and meditated, but there was no answer.

Liu Yiyi fell into contemplation, and for a long time she gestured with her finger on the inscription, and finally she stopped the gesture and shouted happily: Momo, there is!

How? Have you found the password? Yang Momo looked at Liu Yiyi excitedly.

No. Liu Yiyi said very mysteriously: I discovered a secret, this inscription records the content of our scientific research. Momo, you see, add up the three sets of numbers 365, 584, and 949, and it happens to be 1898. I remember that my father once said that 1898 is a cosmic year, that is, 1898 is the number of days in which the solar system runs, and so on, you can launch the cosmic year of the Milky Way. I just calculated that the cosmic year of the Milky Way is 3796 days. 3796 is exactly twice as many as 1898, and the cosmic year is an increasing number based on 1898.

Yiyi, according to your calculations, where is the password? Yang Momo asked very incomprehensibly: Look, there are incomprehensible symbols under the inscription.

Liu Yiyi pondered for a long time, staring at the numbers on the inscription in a daze. Her mind was spinning rapidly, as if her thoughts were flying far and far from the earth, the moon, the nine planets, the sun, and the galaxy; She thought, 1898 is the base of the cosmic year, is it the password? Thinking of this, Liu Yiyi's eyes suddenly lit up and told Yang Momo: The password is the base of the universe. You see, if we think of 1898 as the base number of the universe 1, then in order of increasing it, the base number of the universe is 1 times 2 to the nth power, that is, 1898 times 2 to the n power.

1898？ Yang Momo was surprised and hurriedly looked for the mechanism button. In front of the inscription there is a set of symbolic number frames, and there is a set of symbolic number 1234567890 inside, Yang Momo immediately chose to press it hard, 1898, and carried out it with both hands at the same time. Suddenly, a loud bang was heard, and the stele slowly moved away, revealing the gate of the pagoda.

Hearing the rumbling sound, Li Zhuangzhuang and the others quickly gathered around. At this time, his eyes widened in surprise and he looked at the pagoda hall in fear. I saw rows of coffins lined up in the pagoda hall. The coffin was still shining. Liu Yiyi didn't dare to walk in at will.

Oh my God, it's scared to death! Du Yanjun was shocked and sighed: Who hung the coffin so high? And is it so much?

Captain, could this coffin be the fetish in the Ghost Crying Valley of Lu Lanfeng that Lu Xian'er said? Qian Yifan immediately reminded: Could it be like in the secret room of the undersea tunnel, the coffin is full of poisonous gas? If it hadn't been for Captain Yang who sent the antidote in time to save us, where would there be today's wonder?

Sister Yiyi, look, these glowing coffins are crystal coffins? Lu Xian'er was very excited and strange and asked: Is there a corpse inside?

I don't know. Liu Yiyi immediately made a decision, and ordered while answering: Everyone be quiet. Momo, you're watching at the door, I'll go in and take a look; The rest of the people hid in the distance and waited. If I have an accident, you all have to obey Qian Yifan's command.

No, Momo, you can't take the risk, or I'll go! Yang Momo stopped Liu Yiyi: I am stronger than you, I can open the coffin!

No way! Changhe One still depends on you to find and fly back to base. Liu Yiyi said very resolutely: Momo, scientific research is also risky, of course, there are accidents from time to time; Sacrifice is inevitable. I am not only a scientific research worker, but also a soldier and a soldier. I am the captain of Hongguo Valley No. 1, if I die, and Qian Yifan and Li Zhuangzhuang, they can fly Hongguo Valley No. 1 back to the headquarters. I've made up my mind, Momo, I think it's okay.

Yang Momo stared at Liu Yiyi with teary eyes. Liu Yiyi smiled at Yang Momo, Du Yanjun and the team members, and resolutely walked into the hall.