Bai Zhan and Xiang Bo quietly walked along the hillside together. The surrounding slopes are very steep, and the higher you go, the steeper it becomes, and finally it simply goes straight up and down, like a city wall!

Standing on the hillside, Bai Zhan looked up at the top of the mountain and said seriously: "This mountain is a city wall, and the level of civilization is not low. ”

"Civilization level? What does that mean? Xiang Bo asked incomprehensibly.

Baizhan didn't explain, just continued to observe. It didn't take long for Baizhan to discover that there was an inconspicuous cave in the mountain. He and Xiang Bo looked at each other, and then the two of them walked in cautiously.

After entering the cave, Bai Zhan and Xiang Bo were surprised to find that the cave was dug by hand, with metal pouring all around, and some words and graphics on the wall.

Xiang Bo looked at the words on the wall in amazement and said, "Isn't this the lingua franca of mainland communication?" And what are these diagrams? ”

Bai Zhan looked at the words that were slightly different from the Chinese characters, and quickly analyzed them. After analyzing the text and graphics, Baizhan discovered that the graphics on this metal wall were a bird's-eye view of the massive city wall. As speculated by Hundred Battles, the level of civilization here is very high. They are colonized and controlled by the outside through the hierarchical suppression of civilization.

Looking at the picture on the wall, Bai Zhan said with certainty: "This is the inspection room of this huge city wall. If that's right, I'm afraid there's a mechanism inside. ”

"Organs? Can't you? What other mechanisms can there be in the mountain? Xiang Bo asked in surprise.

Bai Zhan looked at Xiang Bo and didn't speak, but strode inside. Xiang Bo followed all the way, and the two of them walked for a while, one after the other, and then saw two copper discs.

Xiang Bo said in surprise: "What is this thing?" ”

Bai Zhan glanced at it and said calmly: "It's the secret door of the armor cabin." ”

"A sergeant cabin? How is this possible? Xiang Bo asked stunned.

Bai Zhan analyzed very seriously: "I suspect that the original armor cabin may have been derived from these things. This secret door turned out to be a code door. It seems that the Central Continent back then hid a lot of secrets. ”

As he spoke, Bai Zhan put his hand on it, and then eight hundred and sixty-four hexagrams appeared on the copper plate. Bai Zhan was even more shocked, and said in a low voice: "Is it Zhou Yi's hexagram?" How can there be such a thing here? ”

Bai Zhan glanced at the two copper plates, one of which was a copper plate with sixty-four hexagrams floating on it, and one side was a copper plate similar to a monitor. Bai Zhan made a quick calculation in his mind, and it turned out that these sixty-four hexagrams represented the genetic code. Deciphering this is no joke, it requires a huge amount of calculations.

Bai Zhan thought for a moment, then touched it with his hand, and then the sixty-four hexagrams began to rotate continuously, and "006" appeared on the other side, and then the copper plate on the other side rotated rapidly, and the copper plate quickly opened, and a cabin very similar to the armor cabin appeared in it......

Seeing the cabin that suddenly appeared, Bai Zhan and Xiang Bo were stunned. Two people, you look at me, I look at you, but they didn't move.

Bai Zhan whispered, "Be careful. Xiang Bo nodded.

Baizhan cautiously walked through the door, and after checking the cabin to make sure there was no problem, he sat down in the driver's seat. Although Bai Zhan at this time still looked the same as usual, he was actually very surprised in his heart. Because on the yuan platform in this cabin, there is a copper keyboard and a copper mirror-like display. Everything made him feel like he was in a trance back to the past. However, this design makes it easy for Baizhan to analyze and operate.

After Xiang Bo walked into the cabin, he saw that Baizhan had begun to operate rapidly. So, he stood quietly to the side, for fear of disturbing Baizhan.

After activating the device in the same way as the computer, Bai Zhan whispered: "The system is on, the system detects, and the computer system is discovered." The system mode is confirmed, the language type is confirmed, and the system structure is a Raqa structure. The system language is switched, cut in, and the system is officially opened. ”

After successfully turning on the system, dense text is displayed on the monitor. Baizhan fingers jumped very lightly on the keyboard. Not long after, the monitor suddenly turned to the operation interface.

"The system starts, enters the control interface, and the system confirms. Name: 'Shenmen Defense System'; The purpose of the system: active switching, monitoring. Control of the system has been obtained, and the control interface is entered. Synchronize and replicate the database, go to the central database center, and download the data. ”

Xiang Bo was dazzled, he didn't know what Baizhan was doing. After a while, Xiang Bo asked impatiently, "What is this?" ”

Bai Zhan continued to click on the keyboard quickly, and explained ambiguously: "It's the control system of this mountain, or the control system of the city wall. The so-called Dingguo Canyon is a defensive structure. The amount of work on this thing is amazing, and the Dingguo Canyon can be locked through this system, and I've obtained clearance. The next step is to start the shutdown process. It's just that until then, we have to be ready to start and have a way to close, and that's it! ”

Bai Zhan pointed to the bronze mirror. Xiang Bo looked at the bronze mirror and found that it was a picture. It is the alloy bridge that hangs at the very top.

Xiang Bo asked in surprise, "What is that?" ”

"It's the lock that closes the door. Originally, this thing could activate the self-detonation system, blow the latch from the inside, and then the Dingguo Canyon would automatically close up. But now the explosive device has failed, so we need to blow up that alloy bridge remotely. ”

Xiang Bo immediately shook his head and retorted, "Blow it up? That's an alloy bridge! How much gunpowder would it take to blow up an alloy bridge that big! ”

"That's why we need to go up."

"Up?" Xiang Bo asked stunned.

Bai Zhan nodded and said, "That's right, you have to go up." We simply don't have enough materials to make weapons big enough to blow up the alloy bridge. But we can manually drive the blast system, and once all the blast bolts are open, we can let the alloy bridge self-detonate. Once the alloy bridge self-destructs, it will be able to close the Dingguo Canyon. Let's go back first, there are not enough people now, and the troops are not in the right position right now. ”

"Good!"

Xiang Bo nodded, the two of them left quickly, and after Bai Zhan obtained the permission, he let the control room go to sleep, and then closed the door of the control room.

Seeing that the two of them turned back from the Dingguo Canyon safely, Vivian breathed a sigh of relief and said worriedly, "How is it?" Is there any progress? ”

Bai Zhan replied, "There are a lot of new discoveries. Dingguo Canyon is actually a giant city wall defense system, this city wall system is one thousand meters high, and it is a giant defense shield built by artificial use of the mountain. Since it is artificial, this thing can be controlled, and there are mechanisms and switches to shut down the Dingguo Canyon. ”

"Close the Dingguo Canyon? Can it be done? ”

"It can be done. If the Dingguo Canyon is closed, then the giant will be completely blocked within the city wall. Unless the giants have another way, that's a different story. ”

After listening to Baizhan's words, Vivien fell into a deep thought. Indeed, if successful, the crisis on the southern front could be resolved. And for the Celestian Empire, it is even more of a great benefit. At the very least, those borders that have been demarcated can be turned into de facto control of the borders. However, this operation is definitely not a small risk, and the reward has always been proportional to the danger.

After thinking about it for a while, Vivian made a decision in her heart: "What is the specific plan?" ”

Bai Zhan said seriously: "You must climb that huge mountain. There is an alloy bridge at the top of the mountain, which is the latch. Once up the mountain, we'll head to the alloy bridge and activate the explosive device there. Then we jumped down from the top of the hill. ”

"Jump?" Vivien's eyes widened.

Bai Zhan nodded and said, "That's right, jump down." Of course, there will be some devices that will help us land. We were able to make three paragliders by hand, so there were only three people who went up this time. ”

"Paragliding?" Vivien frowned and looked at Hundred Battles. But after thinking about it, Baizhan never fights uncertain battles, and she still believes in Baizhan more. Finally Vivien spoke, "I can agree to you going up, but I must go up with you." ”

"But ......"

"Otherwise, the operation will be cancelled." Vivien said seriously.

Bai Zhan thought for a moment, then nodded and said, "Okay, plus Xiang Bo." I'm sure the three of us should be fine. ”

After Baizhan and Vivien finished talking about it, Rosil said loudly, "Why bother so hard, can't you go up in a hot air balloon?" ”

"Hot air balloons?" Baizhan looked at Rothel in surprise.

Rosil smiled, "Hot air balloons can be seen at any time in the Cullinan Empire. We don't have that stuff with us when we march, but sometimes it's a must-have for our observations. It's just ......"

Vivien explained, "The wind, at the mouth of the canyon, is dangerous, and if you are not careful, you will hit the mountain. That's why humans can't cross here, and our hot air balloons can't fly more than a thousand meters in the air yet. ”

"Your hot air balloon can't reach such heights...... Bai Zhan muttered a few words in his heart, and then said, "In that case, we can make a hot air balloon that can fly up." Do you have the materials? ”

Rosil nodded: "The Scout Corps will take it, but we can only make small hot air balloons." Now only the western continent has the technology to make large hot air balloons, we don't have it yet. ”

Bai Zhan nodded and said, "As long as there is someone who knows, you can." I can help with improvements and crafting. We flew up in a hot air balloon, as long as it allowed us to get up, and the rest was left alone. Call someone from the repair squad to help immediately, hurry up. ”

Vivien nodded and said, "I'll arrange for someone to go!" ”

The hot air balloon that Rothel is talking about is very different from the hot air balloon we know. The hot air balloon in the world of "Fabrication" is a special paper balloon. Such a hot air balloon is simply not enough to fly to a height of 1000 meters. If you want to fly to the top of the mountain, you have to make the sphere bigger, and you have to have a high-power burner. It is not difficult to make such a burner, the difficulty is gas. The Cullinan Empire uses natural biogas. And because there are no cylinders, the burning speed is fast.

According to the current situation, after repeated consideration and exclusion, Baizhan decided to use multiple hot air balloons to make parallel balloons, as long as they can fly to the middle of the mountain. The rest is used to get to the top of the mountain.

With the complete plan in place, the entire Silver Moon Guard was busy. The convoy was concealed during the day and moved around the perimeter at night. During the day, while hidden, the repair squad made the hot air balloons he wanted according to Hyakuzhan's request, while Vivien led a group of people to sew the paragliders that Hyakuzhan said. When the night was in action, the repair team and Vivien would rest.

And just like that, the three days passed quickly. The giants are already very close here, and this is the last chance for Silver Moon Guard. If they don't leave, they will be surrounded by giants, and it will be even more difficult to leave at that time. If there were xenomorph giants among them, it would be even more troublesome.

Of course, Silver Moon Wei didn't know that only a small part of the giants on the southern front rushed over, and most of the more giants were pinned down by the coalition forces. The idea of the countries is simple, that is, to stop the enemy with all their might, not to let the enemy pass. The more frantic the enemy, the more important it is that what is happening in the rear is important. Although it is not yet known which Yanjia Regiment is operating behind the giants, the coalition forces will definitely support it.

After crafting a hot air balloon and paragliding, Silvermoon Guard went into action. The convoy crossed in front of Tonglin Road, forming a defensive line with vehicle-mounted artillery and individual artillery.

Everyone in Silver Moon Guard understands that if this battle is won, it may be able to change history, at least give humanity some respite. The continuous campaign for many years can finally come to an end temporarily. So this battle is definitely very meaningful.

In the Silver Moon Guard, whether it was a soldier or an ordinary soldier, everyone breathed a sigh of relief in their hearts. On weekdays, everyone is afraid of death, but that's because they feel that their death is not worth it. But now it's different. These days are all about fulfilling the original promise of the soldiers, and it is also what these soldiers who went to the battlefield hoped for. It is true that some of them are forced to go to war, but more often than not, they come to prevent their families from being slaughtered by giants.

The competition of the magnates has tired the soldiers. But this time it was different, not for the sake of competing interests, but for the survival of mankind. So everyone is a little more excited than ever.

Bai Zhan, Vivien, and Xiang Bo boarded the hot air balloon, and Vivien looked around at the high-spirited soldiers......

Rothel raised his fist to his chest and said, "To survive!" ”

"To survive!" The soldiers saluted at the same time to the three people who were ready to take off.

Vivien looked at everyone with a smile on her face, and then said solemnly, "Then we will hand over our back to you!" Mark my words, one way or another. We're all going home! I promised you! ”

"Yes!!"