The clockwork drives complex and exquisite mechanical gears. The elastic potential energy causes the gear to rotate at a constant speed under the action of damping, which drives the drum to rotate accordingly.

The comb teeth on the rotor gently lifted the reeds on the comb as they rotated, but the pleasant music floated out of the music box.

"What song is this?" the girl asked softly, and the prelude that was like a tinging spring water instantly conquered her.

"City of the Sky." Chen Zheng said with a smile.

As a qualified watchmaker, hand-made music boxes and other things are not a challenge. Especially the most difficult part of making gears, Chen Zheng used the machining center on the C-type camp car, and the precision gears produced are one order of magnitude higher than those made with the earth.

So what is required to make the song "City of Sky" is not technology, but patience.

This shows how much effort he has spent on this music box from the dense comb teeth on the sound cylinder.

Holding the music score in the left hand, gently nailing the baby's comb teeth on the drum with the right hand, and finally, it has to undergo countless debugging to make the tone and structure perfect...

Under the simple wooden surface, there are countless precision gear machinery inside, while the cold and complex machinery plays extremely beautiful music.

Maybe this is the romance of science and engineering men?

"In that city in the sky, there are small wild flowers that smell...

In that city in the sky, the sound of birds is like a melodious song..."

Chen Zheng hummed with his tone-incomplete voice with crisp syllables.

"Ahem... I sang badly." Chen Zheng suddenly noticed the girl's eyes staring at him, and couldn't help but blush, and he turned his head slightly and did not dare to look at her.

"It sounds pretty good."

The girl's smile is so beautiful.

...

The two of them seemed to have some tacit understanding, playing chess, skiing, beer, barbecue... and threw all the trivial matters aside and played for a whole day and night.

However, reunion is short-lived.

Happy times always pass so quickly... Although both of them are a little reluctant, the moment of separation still comes.

"You...I'm leaving." Before leaving, the girl seemed to have said a thousand words.

Chen Zheng knew that what she wanted to ask was, "Don't you go with me?"

"Goodbye." Chen Zheng lowered his head and buried the sentence "Can't you stay?" deeply in his heart.

Because both of them knew very well that as the "remnants" of the Blue Gold Empire, the four empires would not let them go, and the civilization behind the four empires would not let them go.

No matter where they go, if they do not have their own strength, the future of being captured and killed is obvious. Even if they can escape the pursuit again and again, people will never be lucky forever.

So, love and other things are really too luxurious for the two of you now.

"Take care." Chen Zheng raised his head and looked at the girl's eyes, "One day... um..."

The soft lips blocked what he was going to say.

"... Be careful." After the girl kissed the boy with pain, she threw her long golden hair and jumped into BT's cockpit without looking back.

"...Goodbye." Chen Zheng whispered to BT.

"Goodbye." BT-7274's voice replied, "You are such a good person. Your question has made me re-examine my existence. Although I have not found the meaning of life, it is..."

"Protect her."

"As for the order." BT saluted, turned around, and raised his remaining right hand to face the rising sun.

The sunlight seemed to condense in his hands. As the light became brighter and brighter, bursts of air also burst out from the light, making Chen Zheng's coat rush.

When the light was extremely bright, it suddenly collapsed, turned into a deep black hole, and suddenly pulled the huge BT into it.

The wind rolls snowflakes into the black hole.

I don’t know how long it took, but the wind stopped and only left a strange circle without snow on the ground.

Chen Zheng raised his hand, smelled the fragrance of hair remaining at the fingertips, and suddenly clenched his hand into a fist.

"The four empires... and that higher civilization... you can wait."

...

Half a month later.

...

"Hey, don't you think adults are a little strange these days?"

The skinny monkey asked in a low voice.

"What?" The one-eyed dragon was holding a machine gun and patrolling seriously, looking like it was facing a great enemy, as if a monster would pop up in the snowy field in the forest.

"You didn't see it!" The skinny monkey said in surprise, "If you don't say anything else these two days, how many times have you been beaten?"

"Hmph, that's the adults practicing fighting skills!" One-eyed dragon said dissatisfied, "What do you mean I'm beaten?"

"Isn't it just that you were beaten? You were beaten to the point of being bruised every day..." The skinny monkey laughed.

"Hmph, you don't even have the right to be beaten." The one-eyed dragon groaned.

"Hehehe...who told us...how do you say that word?"

"'Cake' means stupid, stupid, stupid..."

"Hey hey hey! I didn't say that much! I just mean to be stupid!"

"Parking seriously! Don't forget the tasks assigned by the adults!" One-eyed dragon ended the topic unhappily.

The two were patrolling along the periphery of the monitor.

In half a month, all the refugees had moved back from the outpost camp. With rows of wooden houses built, many of the work was filled with personnel selected from the refugees.

For example, the work of monitoring the captured soldiers was handed over to the agents under Lao Wang - in this regard, they were professional. The liberated man with glasses and his men drove snowmobile and brought newly built equipment to explore the surrounding minerals.

Some security work to maintain public order was gradually handed over to foreign agents who actively assimilated.

With black technology translators, communication between races is no longer a problem. However, due to the limited number of translators and cannot be manufactured for the time being, so far, only "public officials" can be equipped with them.

Chen Zheng lived in simplicity during this period and rarely appeared in front of others. He would occasionally ask the one-eyed dragon and Scar, who had strong fighting skills, to train with him.

Since everyone else took over professional things, Chen Zheng finally had time to explore the secrets in the pendant.

However, just as everything was on the right track, someone suddenly disappeared in the prosperous camp.

The missing person is a Malay man who was once a subordinate of Hei Pi.

Due to Chen Zheng's plot, Heipi and his men soon became rats crossing the street that everyone shouted and beat. After Heipi was sent to mining, the discriminatory treatment of the Malays naturally disappeared.

However, people who have been with Hei Pi are still unpopular.
Chapter completed!