The stealth ability of the night bat has checked the information, even in the last days, it is very good, almost comparable to the military level, so even if the Four Seas Kingdom and the Black Gold Group are monitoring at the border, even if they use complex means such as signal detection and radar, they will disappear like a phantom without being discovered.

In terms of speed, Jiaolong is naturally much faster than Sun Rong's convoy, and the chariot drew the trajectory of the last time, almost twice as fast as Sun Rong's convoy, crossed the mountains and swamps, and quietly crossed the minefield.

When I arrived at the camp, it was more than six o'clock in the evening of the next day, and it was not long after it was dark, and the woods were already dark because of the high mountains and dense forests.

Gu Yicheng was busy taking people up to the guard tower, and only after confirming the dragon-shaped sign on the front of the car did he breathe a sigh of relief, and hurriedly lifted the guard to let the guard post go.

Sun Rong also hurried over to watch Jiaolong drive towards the camp, and said to Gu Yicheng, "Is it the City Lord of Longyuan?" ”

Gu Yicheng nodded and said, "Yes, the communication has been confirmed." ”

Sun Rong was surprised: "How did he pass through the secret passage, forget about the front, we re-lined the minefield yesterday, and there is an electronic post in front of this forest, how did you do this defense, but you didn't find it at all?" ”

Gu Yicheng said with a puzzled face: "I just checked it on purpose, and all the electronic whistles are normal." ”

"Fortunately, we are friends, if we were enemies, we don't know how we would die." Sun Rong sighed, and saw that Jiaolong stopped and hurriedly stepped forward to greet him.

Xiao Yunfei also came over with people to greet him, and the people of the Gopher Gang made him nervous as if they were facing a great enemy, but it seemed that nothing would happen now.

Zhang Zhen opened the car door and came down, saw that Sun Rong and Gu Yicheng had strange expressions on their faces, and said with a worried smile: "It's nothing, it's not difficult to walk through the secret passage once and go a second time, I know that you have rearranged it, but it is not difficult for me, Gu Protector and I have fought, so it is not surprising that these are." ”

Gu Yicheng suddenly realized: "I know why the city lord was able to pass the electronic whistle, last time the Blood Shadow Regiment drove the night bat to assassinate the city lord, I think the city lord must have obtained the night bat chariot." ”

Zhang Zhen smiled and said, "There are people from the Four Seas Kingdom and the Black Gold Group on the border of the wasteland, and if I have the stealth ability of the night bat, I wouldn't dare to come over, so you must be careful in your actions." ”

"Yes, we found out, so we haven't been out lately." Gu Yicheng nodded, feeling sad in his heart, he was defeated by Zhang Zhen twice, and such a tight defense was easily broken through again, he was really useless as a commander.

"Brother Zhen, that's the land fortress?" Zhou Ziyan got out of the car and looked at the mountain of steel illuminated by beams of lights in the dark night, and became excited.

"yes, let's go into the camp and talk." Zhang Zhen glanced at the fortress that had already begun to clean the surface soil layer, and felt a lot more relaxed, this progress was still okay.

"Inside, please." Sun Rong glanced at Zhou Ziyan and wondered in her heart that this city lord was too good at enjoying it, so she changed to a smaller and more smart little girl with her.

In the tent, Cai Tong was drawing manually under the lamp, and Zhang Zhen came in unaware.

Sun Rong explained: "We have cleaned up the four floors inside, and it is the infantry unit combat platform as predicted, and the explosion inside is very chaotic, but a large number of weapons have still been found, and the three-layer chariot platform has also been basically confirmed, but the beast's nest has been found, and half of it is buried underground, the environment is very complicated, Elder Cai is drawing a blueprint for the three layers according to the data, and making plans for cleaning up the three layers." ”

Zhang Zhen glanced at the blueprint and found that he couldn't understand it at all, a piece of paper like a beast skin was densely painted with icons like a mechanical blueprint, and he could only determine that some areas might be chariot parking areas.

Cai Tong heard the words and found that Zhang Zhen was coming, so he hurriedly stopped his pen to say hello and prepare to introduce him.

Zhou Ziyan looked at the drawings curiously, and the more she looked at them, the more excited she became, and she stepped forward and pointed to the irregular lines that seemed to be irregular to a few ordinary people in the drawings and said, "Is this a maglev elevator shaft?" ”

Cai Tong looked at Zhou Ziyan in surprise and nodded: "Yes, the core of the maglev elevator shaft is on this floor, but the failure caused an abnormal magnetic field to be generated in the entire elevator area." ”

Zhou Ziyan glanced at the elf next to her and said, "Can I use it?" ”

Cai Tong nodded, the diagram he drew can only be understood by professionals, it is some professional data abbreviation symbols, it is impossible for ordinary mechanics in the last days to see it, how can this girl understand such professional data at a young age.

Zhou Ziyan got the consent to activate the elf without saying a word, then pulled out the creation interface, and began to draw the 3D model in the interface quickly with both hands.

At first, everyone couldn't understand it, but Cai Tong immediately found out that Zhou Ziyan was drawing the maglev elevator shaft according to his drawing, and everyone saw that the suspension platform and barrel-shaped cabin of the elevator shaft were drawn.

"There is an error in your data, if the magnetic unit is in this position, then the control core can only be installed in the best position, and from the listed accessories, these are not complete, the elevator shaft is built on the third floor, yes, but because of space reasons, part of the unit must be in the mezzanine or under the mezzanine." Zhou Ziyan looked at the model she had drawn and pondered.

Cai Tong was stunned when he heard this, he didn't use the elf because he felt that he couldn't draw the effect he wanted, but he didn't expect Zhou Ziyan to draw it in a moment's effort, and he also made accurate data speculation that he couldn't do with the floor plan, and was a little shocked: "That's true, I'm calculating and confirming whether the elevator shaft extends to the mezzanine, who are you, how can you have such a strong drawing analysis ability?" ”

Zhou Ziyan was so excited that she was about to report to her home, Zhang Zhen smiled: "She is my chief mechanic, and she came here this time to help you dig the Hori Fortress." ”

"I see, with the help of the city lord's chief mechanic, we will definitely conquer the third layer soon." Cai Tong became excited, he was now in trouble and needed a manpower to help, Zhou Ziyan's appearance was undoubtedly in line with the requirements.

"What's wrong with you?" Zhou Ziyan is very obsessed with machinery, otherwise she wouldn't have gone to learn, looking at the drawings on the table, her brows gradually wrinkled.

Cai Tong sighed and said: "As mentioned earlier, the elevator shaft is broken and there is a magnetic field problem, the third floor has a closed deck, the elevator cannot be used, the mechanical door is completely closed and cannot be opened, and it is detected that there is a nest of alien beasts below, and now if the magnetic field problem is not solved, many of our equipment cannot be used below, even if we can enter the third floor, it will undoubtedly open the gate of hell." ”

"Take the data from all the layers of the fortress and I'll draw the complete model." Zhou Ziyan said that her hands had already begun to continue drawing on the elf.

"Okay." Cai Tong is busy opening the cabinet and holding the drawings of the top four layers, as long as there is a comprehensive model, then it is likely to deduce the detailed construction department below, which is the conventional means of engineering decomposition, but it is also the most difficult method to succeed.

Zhang Zhen didn't expect Zhou Ziyan to start working so soon, he pulled a chair and sat on the side and watched, Zhou Ziyan drew area by area, just like building a fortress, so he couldn't miss the opportunity to learn more about the fortress.

(End of chapter)