My Apocalypse Fortress Vehicle

The design draft for refining gold was naturally given to Chaoying to draw. She knew a little bit about how to design this machine. After all, in her words, the principles of all machines in the world are connected. If you understand one, you can understand all the others.

Gu Zhuo was not a scientific researcher like her, so he just followed Chaoying's design draft and finished it.

After Chaoying finishes drawing the design of the machine, she will continue to draw other necessary design drawings non-stop. Only after the design drawings of the medical equipment are drawn together, will she discuss with Gu Zhuo what other areas of Doomsday Fortress need to be upgraded. , it’s not too late to start designing after the negotiation comes out.

Gu Zhuo was not idle during the time he was drawing design drawings at Chaoying.

The cabbage grown on the second-story platform has sprouted in the past few days, and diseases may appear after the cabbage sprouts. Although when Gu Zhuo planted them before, he sown them separately to avoid disease infection in the vegetable seedlings.

But just in case, Gu Zhuo didn't know whether the cabbages were bad or not. He learned the knowledge from the agricultural manual, controlled the machine to tighten the soil for the cabbage sprouts, and made a simple anti-disease spray with milk. , sprayed the cabbage one by one.

Originally, he wanted to fertilize the cabbage, but he was afraid that fertilizing would cause a smell in the whole car, so he gave up.

After finishing the vegetable fields on the second floor platform, Gu Zhuo estimated that there would be no problem and he could just wait until they matured.

He took Sam down to the ruins again and went to the cave to look for any other places that he had overlooked.

Sure enough, after some searching, he discovered a very hidden secret passage leading directly to the ground at the very edge of the hall. This secret passage is completely sealed like the stone wall of the previous hall.

But Gu Zhuo used a war machine to force open the secret passage, and then the underground secret room that had been sealed for many years finally appeared again.

Looking down from the entrance of the secret passage, we found that there was a ladder connecting the above ground and underground parts. Only Gu Zhuo could climb down the ladder, but Sam could not go down.

Seeing this, Gu Zhuo said to Sam:

"Sam, wait for me here, I'll go down and explore."

Sam was very spiritual. He understood what Gu Zhuo said and howled a few times.

Gu Zhuo picked up a piece of pottery and threw it underneath. After a long time, I heard the crisp cracking sound of pottery pieces. It seems that this passage is not very long.

Along the ladder, Gu Zhuo slowly climbed down into the ground.

He didn't know how long the ladder was or how deep into the ground it led. The entire entrance is also very narrow, only large enough for an adult male to pass alone.

Gu Zhuo crawled for a while before he felt his feet touch the ground.

He jumped down and stepped on the ground with his feet. The war machine collided with the ground, making a sound of mechanical gears rubbing together.

When he arrived underground, Gu Zhuo looked around and saw that he had fallen into a cave.

This cave was probably dug out by those bandits who had been digging underground. After all, the bandits were hunted down hard in the past. Most of the bandits were cunning rabbits with three caves. If they could find more escape routes, they would dig out one more path.

This cave is not big, about one-third the size of the platform above, and is big enough for about five people to stand.

If you are looking for a place to be a safe base, this place is very good except that it is remote and does not have the required resources. There are underground passages, defensive measures, and mountains and rivers to feed on. It is simply a perfect treasure.

What a shame, it would be nice if there was a gas station or steel factory nearby.

Gu Zhuo was still feeling regretful. Deep in the cave, he suddenly heard the sound of rushing water.

"There is an underground river!"

Gu Zhuo heard the sound of water and suddenly recalled his original intention of coming here to explore before the end:

It is said that there is an underground river extending in all directions, leading directly to the underground of various cities.

Previously, Gu Zhuo and his group of explorers couldn't even find the entrance to the hall, let alone the underground river.

Looking back on this rumor now, and the fact that there was a large group of bandits hiding here, Gu Zhuo felt that the rumor might be true.

Thinking of this, he followed the sound of water and walked over.

The cave is neither big nor wide, just enough for two people to walk side by side. When Gu Zhuo got closer and closer to the sound of water, and when he finally walked out of the cave, he saw a steady black river slowly flowing in front of him.

"There really is an underground river!"

Gu Zhuo was shocked.

He saw the black dark river flowing underground at the moment, like a sparkling snake.

Gu Zhuo walked to the dark river and took a look inside. The bottom of the river was also pitch black and he couldn't see anything clearly.

The underground cave was already very cold. Standing by the dark river, Gu Zhuo felt a chill coming from his back even though he was wearing a war machine.

He shuddered slightly, and then walked forward along the river.

In order to avoid getting lost, he carved special marks on the wall of the cave beside him as he walked.

Walking to the front, the underground river indeed branched into two branches, one on the left and one on the right. Gu Zhuo hesitated for a moment. He preferred the left side, so he picked up the underground river on the left and continued to follow.

The flow of water on the branch has become smaller. Compared with the big snake just now, it is now more like a black satin, walking through the ground. Gu Zhuo didn't know where this branch would eventually lead, but if he didn't follow it, he would never get the answer.

The machine walked for about forty minutes, carving countless marks on the cave wall, and finally reached the end of the branch.

At the end of the branch, there were countless small rivers spreading forward, but there was no road ahead. Gu Zhuo noticed that a ladder appeared in front of him.

The workmanship and style of this ladder were exactly the same as the ladder Gu Zhuo had just climbed down. This must have been the escape route left for them by the bandits.

Seeing that it was really connected to other places, Gu Zhuo was surprised and happy. However, it is not yet certain where the ladder leads to. If it leads to the Prophet's Sect's headquarters, his war machine alone may not be able to deal with the powerful infected people of the Prophet's Sect.

After hesitating in front of the ladder for a long time, Gu Zhuo looked up and saw that the exit above was not sealed, but was open.

In the end, vigilance defeated Gu Zhuo's curiosity. He was afraid that if there was something up there, he would not be prepared enough.

He silently remembered this place and planned to come back to explore it again when the equipment was fully equipped or the war machine underwent a new round of upgrades.

He glanced at the ladder reluctantly, then turned around and walked back along the underground river and the traces he carved on the wall.

It took him about two hours to go back and forth. Sam waited anxiously at the exit. Before his owner could come out, he kept spinning in circles.

When Gu Zhuo climbed up from the bottom of the cave, it kept barking at Gu Zhuo and wagged its tail rapidly.

Gu Zhuo stood firm on the floor of the hall, touched Sam's head and said:

"Let's go, we have to come again in the future."