After walking for about ten minutes, Luo Ling took out the map, checked it, and nodded, "Start from here, start with the road on the left, everyone pay attention to observe, and the wall, maybe hollow, with a movable door." ”

"No monsters, right?" Song Yizhou asked.

"Don't worry, no."

The four men walked forward with their weapons in hand, knocking and pounding, until they reached the end, and they did not find anything.

Turn back and continue the second way. Still no gains.

Third, this time, there is something special at the end of the road. Although it is also a dead end, it appears to be an emergency backup passage, with a wall ladder that can be climbed up and down by one person. However, there is a heavy electronically controlled gate lock, and it is not known whether it can pass through the surface.

Luo Ling marked on the map, "Whether this is an emergency exit to the ground or not, we have to make sure it in the end, and continue to search first." ”

The hard work paid off, and the subject's exit was finally found, in a bland room, with the specific exit underground, blocked by an alloy door made to look like a floor. The alloy door is very thick, and the sound made when knocked is very close to the ordinary ground, if it weren't for Luo Ling's hearing abnormality, I'm afraid I wouldn't have found it.

"How thick?" Song Yizhou asked.

Knocked with the bottom cone of the sword gun, and then again, "About 70 centimeters!" Luo Ling guessed.

"Damn, Broken Dragon Stone?" Song Yizhou complained and said, "It can't really be all metal, right?" ”

Luo Ling gave a terrible answer. "I'm afraid so!"

Song Yizhou sighed, "It seems that more than 2 years ago, the price of selling scrap iron was 6,000 yuan per ton, this is obviously not scrap iron, but a jack gate, it seems that the owner of the underground research institute is indeed very rich!" ”

"Why did you mention money again?" For Song Yizhou's wealth fans, Xing Juan can be regarded as having some understanding.

"Money is a good measure!" Song Yizhou said proudly: "Just from this gate, we can judge how huge the investment was when this place was built, and it can also be seen how tightly defended this place is!" ”

"No matter how rigorous it is, it is based on outdated technology, and there should be a way to be honest." Han Xiaolu proposed.

Luo Ling originally wanted to perform again, but when he heard Han Xiaolu say this, he temporarily terminated this plan, so he still had some reservations! lest it be too shocking.

The four men walked back, coming to what could have been an emergency passage to the ground. Luo Ling climbed up the ladder and poked the manhole cover-like alloy door, "This one is not very thick. ”

It's not very thick, but it's 5CM, but it's okay, it's within the tolerance range of the welder. This tool is almost as necessary for modern demon hunters as the shovels in the hands of soldiers in the past. The fusion welder relies on magic energy to provide energy, which is actually a kind of concentrated release of fire element energy.

Melt through a hole first, then cut in a circle, and finally, boom! The alloy door fell to the ground, revealing a dark upward passage.

Luo Ling took out a high-energy flashlight and shone upward, "Five meters away, there is still a metal door." Roughly calculated, it should not have reached the surface yet. ”

Song Yizhou nodded, "I've already guessed it!" The people who build this place are nothing, they just have money to burn! An emergency passage, also three alloy gates, all thick like the armor of the main battle tank, this is called an emergency passage? It's really urgent, can you get out of here? ”

Luo Ling didn't say anything, and climbed up to cut the second door. The passage is limited and the score is cut into two pieces. After cutting through, and then shining upwards, it was still an alloy gate.

This time, Luo Ling didn't rush it, but took out the electronic map.

In today's era, the portable mapping instrument supporting the electronic map is very advanced, as well as auxiliary equipment such as level and depth meter, and the electronic map can not only present the plane map, but also can be switched to the dimensional map and the side view, and can be modified and adjusted even by the data given by the map drawing instrument. This product is naturally expensive, but for the adventurer as a profession, it is as important as a weapon, so no one will save on it.

Switching to the position of this piece, Luo Ling looked at the distance and climbed down the ladder, "If you go up again, it will probably be the surface." I always feel that this passage is set up a little strangely......" Luo Ling said as he climbed up again.

Climbed to the top, listened, knocked, listened again, there were no monsters outside, and when the knock on the alloy door was louder. It is almost certain that it is indeed the last gateway to the surface.

"Where's the cat? Above this door? Surface buildings? Luo Ling was guessing, "Huh? Inadvertently, a small hole caught Luo Ling's attention.

It was the slight glow of the emitting flashlight that made Luo Ling, who had a keen sense of observation, discover this hole. It's right between the second alloy door and the top alloy door. Take a closer look, some of them are like the display light on the charger, a small concave dot, and the position is still on the opposite side of the wall ladder, that is to say, when people generally use the ladder, their backs are facing that side, if it is not for Luo Ling's flashlight shining from top to bottom, it will be missed.

With this discovery, Luo Ling paid attention to the area around the hole, but he found a secret door nearby, which was also set up against the ladder. "Interesting!" Luo Ling sighed at the subtlety of this design. This is like a shaft passage, a cylindrical passage, and then there is a fixed iron ladder on one side, but in the middle of the passage, there is a horizontal secret door, which is simply an underground fortification in the tunnel war.

"What did you find?" Song Yizhou, who was below, saw that Luo Ling was slow to come down, and asked curiously.

"A secret door, opposite the ladder between the second gate and the top gate."

"Well, you have eyes behind your back? How was it discovered? ”

"There is a small hole nearby that may be used to open the door and receive remote induction, reflecting the light from the flashlight."

"Isn't it! That's the real light of the grains of rice! Can you see this? Are you sure your eyes are anatomy like normal people's? ”

"What? Any questions? ”

"Big problem! I'm so jealous! There are so many magical skills, how come I don't know any of them! ”

……

The secret door was opened, and when Song Yizhou came up and found the small hole that Luo Ling said, he couldn't help but say, "Luo Ling, do your eyes have an all-round external scanning function?" If the original designer had known how you found the secret door, he would have the heart to commit suicide! ”

Although Xing Juan and Han Xiaolu, who came up later, didn't say anything, they also had the same idea in their hearts, except for being incredible, I really don't know what words to use to describe it.

At the end of the secret door, an ordinary metal door, the ID card is swiped to identify and open, and the red light is on, and it is still working.

Luo Ling was about to break the lock, but was stopped by Song Yizhou, who squeezed over, "You are really a sabotage maniac, I'll do this!" Song Yizhou said and took out a palm-sized instrument from the space ring, and an electronic pen with a thin iron bar at the front was connected to the instrument. Some locks cannot be broken directly, otherwise they may trigger the mechanism inside and destroy all the important things inside. Song Yizhou said, while using the tip of the electronic pen to probe into the top of the swipe card slot, gently swipe down, drop! Click! The red light goes out, the green light comes on, and the lock opens.

Luo Ling said, "It seems that the Demon Hunter is also responsible for finding and opening some private vaults and safes. ”

"Of course! It's already ownerless, isn't it good to let it play with surplus value? Especially when I found some gossip things such as private accounts, black accounts, and nude photos of the wife of a certain bureau chief and a high-ranking official, although the person concerned may not still be alive, but the things are still relatively valuable, after all, the survivors have not watched Hollywood blockbusters for more than two years, and they have not listened to concerts in Hong Kong and Taiwan, and their spiritual life is very poor and monotonous! ”

“……”

Behind the door is a house of nearly 100 square meters, with voice-activated lighting, when the lights are turned on in the room, the instruments in the room are automatically activated. There were two sets of monitoring instruments, and standard-size displays hung on two walls. From the displayed screen, it is easy to distinguish that one is for the maintenance channel and the other is for the surface.

"Damn, I'm really willing to invest! The camera instruments are all IR functional, you see! Isn't this the vaulted hall of the annex? The monster hasn't left yet! Song Yizhou sat in a soft chair with universal wheels underneath, and pointed to a display screen.

Unlike Song Yizhou, after Luo Ling entered the room, he immediately checked whether there were other doors, passages, and all other things related to battle and retreat. Being a qualified lone warrior is a habit that has been cultivated over the years.

A bedroom, a bathroom, a kitchen, and some simple furniture. It seems that it was originally intended for two or three people to live in for a long time.

"Shh Luo Ling, who was looking around, suddenly whistled Lu Fei again, "This project is huge enough!" He said.

Everyone gathered around to take a look, and it turned out to be a single elevator with a width of 1 meter.

Luo Ling looked at the location of the newly exported electronic map in his hand, then switched to a side view, gestured with his hand, and said: "It's not the same as the underground base, but if the extremely secret research institute that has not been explored by the underground research base is big enough, there will not be a passage to connect this elevator." ”

Song Yizhou leaned in and looked at it, "It's a little farther away, right?" Where is the ground above us? ”

Luo Ling checked, "It's not indicated, look at the location should be not far from the backup runway." ”

"Hangar!" The two looked at each other and spoke in unison.

"It should be downward, there is enough emergency passage to go to the hangar, and one of the two gates below, enough time to go up from here to the ground. There's no need for something as conspicuous as a lift. Luo Ling analyzed.

"I found the 'shortcut to the south', people are one step to the sky, and we are here, I'm afraid it will go straight to hell!"

"What to do now? Explore? Xing Juan asked.

"No, go and join Qin Qing and them." Luo Ling said.