Dawn.

The morning light still comes, and the desert in the wasteland presents a wonderful golden color under the sunlight. This golden color is dazzling with minerals. Different from the soft and sparkling waves of the sea in the early morning, it has a cold and hard texture, like a knife blade, which makes people want to squint their eyes.

After a night's sleep, Lu Ban felt full of energy.

Open your eyes and you will hear the singing of birds and the fragrance of flowers.

He saw the robot girl sitting by the stream, stroking the deer's head. The scene was peaceful and tranquil, just like any sunny morning.

"We plan to leave after completing our investigation today and return to our city. Do you and your companions want to come with us?"

Frost Heart asked from the side.

Hearing this, the robot girl tilted her head, as if thinking.

After a moment, she shook her head.

"The charging device cannot be moved. I judge that if we follow you, we may stop the operation after a period of time. The risk is very high. As one of my basic rules, it is necessary to protect our own operation."

Lin said, and added.

"Besides, I still want to wait for the people in the city to come back."

"Being able to meet you means that everyone will definitely come back. If they come back here and find that we have left, they will definitely be sad."

After hearing the robot girl's words, Frost Heart remained silent.

“What are the underlying rules you follow?”

Lu Ban couldn't help but ask.

"Well, first of all, the most basic rule is that you must never harm humans at any time, and you must not stand idly by when humans are in danger."

Lin answered quickly, with a somewhat proud attitude on her face.

"The second rule is that you must obey the orders of humans, but you cannot disobey the first rule."

"The third rule is that you must protect yourself, but you cannot violate the first and second rules."

"These three rules constitute the most basic logic of our robot. All our actions are derived from these three rules. So, we cannot guarantee anything else, but we will never harm humans."

After hearing this, Shuang Xin fell into deep thought. She pondered for a while and finally gave up on letting Lin follow her back.

If they could stay here, perhaps they could bring people here later. If a saint is around, maybe the energy problem can be solved.

Another consideration is that if they really take Lin and the others away from here, then these robots will realize that the world has been destroyed. Frost Heart doesn't know their attitude towards the "new humans" such as the Zerg. Even without considering this, she feels that it is a bit cruel to let the robot girl come into contact with this fact.

As a person who has never come into contact with man-made objects such as robots and artificial intelligence before, Frost Heart treats these robots not as tools, but like human beings.

However, the three cold laws of robotics have completely confined robots to the position of tools.

"let's go."

The four of them rode on camel worms and continued to move towards the ruins of the industrial park.

Electronic products cannot be started without Lu Ban, so they would like to find some paper materials.

Paper used by humans usually becomes unusable after a few decades, but in extremely arid wastelands, this shelf life may last for more than a hundred years.

However, if the paper is stained with pigments, printing, etc., especially mineral pigments, then the surface of the paper will be covered with a mineral film, and under good conditions, it will have no problem being preserved for thousands of years, which is why those ancient paintings have been preserved for so long.

However, modern coated paper has been chemically treated and can be preserved for hundreds of years without any problems.

So Lu Ban and his team's goal was to look for those printed paper documents to see if there was anything they could take home.

Having been to the industrial park once, the four were already familiar with the place.

Lu Ban relied on [True Sight] to search for paper documents that might exist in the building, but unfortunately, he didn't know whether it was because this place was destroyed by the Zerg, or because humans of that era had long stopped using paper to record important things. Except for some posted documents, he found no text like the files in the computer.

He could only repair these things with [Last Words] and then print them out with a printer.

This process will take a long time. After all, only when Lu Ban touches them, these antique gadgets from hundreds of years ago can start to work a little and spit out those hundreds of pages of documents.

While Lu Ban was printing the document, Shuang Xin was exploring other parts of the ruins.

She looked at the desolate ruins and felt a sense of loneliness.

Human beings in the old times possessed a brilliant civilization that was unimaginable to them, but even so, such a brilliant civilization was still easily destroyed in the worst way.

All the struggles I make now are probably just insignificant resistance like the jumping of an ant in front of those supreme gods.

"What’s wrong with you?"

The singer asked. She was holding an abandoned tablet and couldn't understand why it glowed in Lu Ban's hand but was like a brick in her own.

"I'm just a little nervous. I always feel like there's something wrong with this mission."

Frost Heart looked at the towering rocket launch pad and frowned slightly.

"A swarm of insects had hatched here. When the human civilization of the old times was destroyed, this place must have been severely damaged. But why wasn't it devoured by the swarm of insects first?"

"Perhaps this is just the place where the swarm was born. They were released somewhere else and didn't have time to come back and completely devour this place?"

The singer thinks that this place may have just narrowly escaped complete destruction, just like Future City.

"Or maybe this place has a special meaning to those insect swarms?"

Shuangxin suddenly thought of something.

She took the map of the industrial park that Lu Ban had promised to show her, and walked with the singer towards the location of the rocket launch pad that they had not had time to explore yesterday.

After getting closer, Frost Heart discovered that the buildings here all had signs of being charred, as if they had been burned by scorching flames.

The huge rocket launch pad was empty, with only burnt black metal emitting a cold air.

Frost Heart came to the bottom of the magnificent creation and found a door that seemed to lead to the underground of the rocket launch pad.

The two walked down the stairs, one in front of the other. It was dark and dry here, and the air seemed to be filled with a burnt smell that could not be dissipated even after a hundred years.

After walking for about five minutes, Shuang Xin felt that the road ahead suddenly became empty.

That sense of spaciousness is not just like the feeling of a hall, but it feels like there is a plain or a huge cave in front.

She lit the fire in her hand.

With the flickering firelight, Frost Heart saw that in the huge hall, there was a twisted mass emitting faint light.

The air distorted, forming something like a lens.