Su Meng knew what the Iron Age meant, and the earth was once in the Iron Age.

During this period, intelligent biology would refine metals from minerals, which over time could be developed to create iron weapons, and the derivatives of the Iron Age were gunpowder and various alloys.

Su Meng used his energy to transform 2 iron coins and handed them to the stall owner, who stretched out one of his four arms to take the iron coin handed by Su Meng, and then Su Meng took the fruit and left here.

Su Meng put the fruit into her body space, and then she continued to walk around the street.

A bunch of soldiers in standard uniforms patrolled the streets, and Su Meng walked to the side of the street and watched them walk by the streets.

Leaving this street, Su Meng continued to walk around the city, without the crowded feeling of shopping streets, other places were more empty, and the pedestrians on the road were also in a hurry.

Su Meng's current super sense can cover the size of a sphere within a radius of 500 meters, and it spreads out at this moment, directly covering the house on the side of the street, and everything that happens can't escape her observation.

Su Meng stopped in front of a huge mansion because she felt that this house was the place with the most books in the neighborhood.

This low-level civilization also invented paper to record words, technology is universal in the universe, after Su Meng became invisible, he walked through the door of the house and walked in.

There were many servants in the house, and none of them could see Su Meng, and Su Meng directly seemed to have passed through the whole world and came to the place where the books were stored in the house.

Then Su Meng took out a book and read it.

After about half a day, Su Meng stopped moving.

There is a person outside, who is the maiden master of this house.

Su Meng put the book on the shelf and waited for the other party to come in.

Coming in was a sixteen or seventeen-year-old girl who looked nine points like the girl of Earth, but with a long tail and four arms.

She went over to the bookshelf and looked through it.

She didn't seem to be in a hurry to leave, but looked at a book very quietly.

After looking at it for a while, she sat down at the table next to her and continued to watch.

Su Meng frowned slightly, she had just spent more than seven hours reading half of the book here, and her understanding of this civilization now was comparable to that of the elites among the natives here, and she was about to continue reading a little, but this girl came.

Su Meng originally came here to arrest a few natives, but now this girl is very in the way here, Su Meng thought about it, and then came to the girl.

Su Meng is now invisible, and the girl naturally can't see her.

Su Meng's heart moved slightly, and the power of controlling the rules of space, Mu Ran sent out, and the girl's body suddenly disappeared, and Su Meng's hand was an extra space ball.

The girl was reading a book, suddenly felt a darkness in front of her, she couldn't see anything, her body couldn't feel gravity, as if floating, and then, she found herself in a circular space hundreds of meters in size, on the wall of the space, like a mirror reflecting her body, she struggled to stand up, but found that the ground was so smooth and terrible, she couldn't even move herself.

The space ball made by Su Meng, once formed, the space wall inside must be absolutely smooth and flawless.

Su Meng took the space ball in her hand, looked at the panicked appearance of the indigenous girl who had been reduced countless times inside, and said, "This native will put it in first." ”

After Su Meng finished speaking, his mind moved, and he put the space ball into his body space.

This is a new application of the space ball discovered by Su Meng, you can put the organism into the space ball first, and then put it into your own body space, then the organism will not die.

After the space ball containing living organisms entered Su Meng's body space, a time slowdown effect appeared.

This is also Su Meng's new discovery, the space ball that wraps the organism cannot be in time statary after entering the body space, but can only be in a time deceleration state, the highest value of this time deceleration state is 100 million times, and it does not need to consume energy, once it enters, it will enter a time deceleration state of 100 million times by itself.

Su Meng is not so worried that her sister will die now, with the space ball, she can also put her sister in it when necessary, and the time will slow down 100 million times, even if hundreds of millions of years have passed, her sister will still be alive.

Su Meng grabbed the seventeen-year-old indigenous girl, and then continued to read the book.

After another half a day, there was a sudden chaos in the house, and Su Meng had already left here at this time.

Su Meng, who had read the book for a day, already had a 99% understanding of the history and scientific and technological level of this low-level civilization at this moment.

This is a civilization that worships gods, and the huge white tower in the city is the "Asking God Tower" that worships the gods, but this asking god tower will only open on the first day of the first month of every ten years, and on that day, everyone on this continent will kneel on the ground and beg to the gods.

Su Meng was now standing on the top of a mountain, looking at the bright moon in the sky that was getting brighter and brighter.

She is ready to leave here, the level of science and technology here is lower than that of the earth, there is no use value, and Su Meng does not need the resources here.

Although the people here have four arms and tails, they are different from the earthlings, but in terms of genes, they are more than 30% similar to the earthlings.

The genetic code for the eyes, ears, brain, and other organs is very similar to that of humans.

The difference is that the natives here have completely different stomachs and hearts from the earthlings, and from genes to appearance, they are two completely different directions.

In Su Meng's body space, in addition to the seventeen-year-old girl, two twin girls were also caught, who were only nine years old. Su Meng conducted a comprehensive inspection of them with super sense, and basically understood some of the situation of this civilization.

Su Meng looked at the communicator on her wrist, and flicked it a few times with her hand to contact her sister.

The call was quickly established, and Su Meng said into the communicator: "Sister, have you found anything?" ”

"Sister, everyone here has four arms and tails, and it's the first time I've seen any animals here, so it's really an exciting day." Su Tian said in the projection.

"Sister, let's get ready to leave, the level of technology here is too low, it's useless." Su Meng said.

"Hmm," Su Tian nodded.

"Sister, I took the probe back." Su Meng said, and then used his communicator to send a signal, and soon the detector returned to Su Meng, Su Meng put the detector into the body space, and then turned into a light and flew towards the sky.

Su Meng's body completely turned into a ray of light, which was the granularization of her body, and she moved forward at 99% of the speed of light, and after a few tenths of a second, she returned to the spaceship.

Su Meng walked into the rest area and saw her sister looking at the computer screen, so she walked over and covered Su Tian's eyes from behind.

Su Tian was taken aback, and the super sensory force field looked back, and saw that it was her sister who came back, so she was no longer nervous, and said, "Sister, you are back." ”

"Hmm" Su Meng nodded and said, "This is just a low-level civilization, it's useless, let's leave here tomorrow." ”

"Okay" Su Tian nodded, for her sister, she agreed unconditionally.

There are countless low-level civilizations in the universe, and only a few of them can get out of the circle of decline and destruction, such low-level civilizations are not worth paying too much attention to, Su Meng analyzed it in her mind for a few seconds, and then let her sister sleep.

Carrying my sister to the control hall, I entered my knowledge of the planet into the main computer, and named the planet F00002. F represents the lowest level of civilization, and 00002 indicates that it is the second civilization discovered by Su Meng, and the number of the earth in Su Meng's star map is F00001.

A low-level civilization is not of great value, but Su Meng did not want to destroy it, although Su Meng has the ability to destroy this civilization, but there is no motive to destroy it.

The specimen has been taken, and naturally there is no need to continue to stay, Su Meng let the radio telescope and optical telescope run at full power to draw a detailed map of the planet.

The next morning, Su Meng hugged her sister, who was still sleeping in time slowdown, and pressed the start button of the main engine.

The next target is a desolate planet 130 million kilometers away.