C531 Corrosive agent

When Lu Shan returned to the original spot, he saw that the two Ning Siblings were still moving around the safe like headless flies. They would knock on it occasionally and press it to see if they could suddenly trigger some kind of mechanism.

As soon as Lu Shan saw this situation, he knew … They must have not found the mechanism to open the Hidden Door yet, and at that moment, the expressions of the two people had also become anxious.

Originally, if they hadn't found this place, they might have been able to live peacefully in the base, patiently awaiting rescue from the outside world. But now … He had already basically confirmed that the exit was right in front of him, yet he could not open this Hidden Door at all.

Lu Shan shook his head, suddenly thinking that after he obtained the Launcher Job, the system had awarded him with two special bullets, one called Light Explosion, and the other called Shock Bomb.

He had already tried the Light Bomb … That fellow could definitely blind the eyes of countless people. His might was truly unparalleled!

However, Lu Shan had not tried the Explosive Shot, so... I wonder if I can try to use the Explosive Shock Bomb to force the Hidden Door away?

As per Gu Ming's name, Lu Shan could roughly guess, this bomb should be capable of causing relatively strong vibrations. As long as he looked at the power of the previous one, he could guess that this bomb should also be so strong that it would be a mess. But because of this, Lu Shan was even more afraid to use it.

After all, they were still in the belly of the mountain! Earlier, the militants had only blown up the exit of the base, causing the hundreds of meters long passageway to collapse. What if … He put a detonator in it, then... Even if they could shatter the Hidden Door at the exit, they would probably need to bury the three of them alive at the same time.

Therefore, unless he absolutely had to, Lu Shan did not dare to rashly test the might of the explosive shell.

However, he immediately thought of … It seemed like he still had a system market. Although this Explosion Bomb might not be effective, there was definitely something in the market that could be used to break this Hidden Door, but he just did not know that … Was that price something he could afford?

However, thinking back to how he had taken away so many bills from the safe and immediately felt rich again, he just didn't know … Will these cash systems accept it? In the past, when he wanted to exchange for the System RMB, the System would always transfer the money away from his bank account. This cash … Could the system get away with this?

Since he couldn't care so much now, Lu Shan didn't go and greet the Ning Siblings immediately. Instead, he called out the Upgrade Box at lightning speed and opened up the System Merchant Shop.

There were countless of items in the system's Merchant Shop, but at least he could look through them in different categories. At the very least, he did not leave Lu Shan with no clue about where to start.

He searched through the tool-type items and quickly found a few that might be useful.

One was called the Nano-particle knife, for a price of 380000 RMB. Lu Shan felt dizzy just by looking at this. After checking for a few times, he finally understood that such a blade would actually cost 38 million. Why don't you go snatch it!

Seeing this, he hurriedly shifted his gaze … Although he had looted all the valuables in this safe and could be considered to have earned quite a bit, it was actually not enough to buy a blade. It seemed that he was really poor!

Afterwards, Lu Shan looked at other things that might be useful for cutting into the safe …

High Voltage Arc Cutting Machine... This is very cheap, only 560,000 yuan!

Even if he did not use the money that he had just looted, Lu Shan's own money would be more than enough. But when Lu Shan looked through the instructions of the high voltage arc cutter machine, he was speechless. Because this high voltage arc cutter needs 100 thousand KW of power to drive.

Although there was a generator set in this base, but... However, the power of that generator set definitely wasn't that high. Don't even think about it … Even if he bought it, it would only be a decoration.

After searching for a long time, Lu Shan's gaze finally stopped at the top of a high strength metal corrosive potion.

This item was even cheaper, it only required 100 thousand RMB to buy a bottle. The description stated that it could corrode most of the metal and could decompose and vaporize it in a short period of time.

This was a good item … Even though it wasn't widely used, but it was a good idea to use it here!

Although … Whether this corrosive potion could even corrode the super strong alloy behind the safe was still unknown, but … Fortunately, this thing was cheap, a hundred thousand dollars per bottle, even if he did not waste a hundred thousand dollars, for Lu Shan who was rich now, he would not feel too bad about it.

Therefore, Lu Shan immediately exchanged for a bottle of Corrosive Potion and walked over.

Seeing Lu Shan's return, Ning Feng immediately said dejectedly: "I haven't found the mechanism to control this Hidden Door for the time being, I'm afraid... This Hidden Door is really controlled by an electronic program. If we want to use a normal method to open it, I'm afraid we won't have much hope! "

Lu Shan threw a large bag of tools that Yun Che had brought back onto the ground and said, "Don't be anxious … I found a powerful corrosive medicine, see if I can corrode this Hidden Door away! "

Ning Feng was surprised, what kind of corrosive medicine could cause such a heavy metal wall to corrode a hole?

However, when he saw Lu Shan rushing into the safe, he did not ask in a hurry.

After Lu Shan went in, he immediately took out the powerful metal corrosive potion that he exchanged with the System Merchant Shop. In the end, he discovered that the quantity of this potion was not too much, only at the size of a toothpick bucket. He did not know how much metal could be corroded by just this small amount of potion.

After opening the bottle, he pressed the bottle's mouth against the metal wall, carefully smearing the liquid inside onto it …

As the silver metal wall was smeared with medicine, a "chi chi" sound could be heard from it. Bubbles began to appear on the surface of the metal, and soon after, a pungent smell filled the air.

Lu Shan hurriedly stopped his breathing and smeared the entire bottle of medicine on the metal wall. Then, he quickly left the safe.

The pungent smell in the air became stronger and stronger, making Ning Ke feel that she was unbearable even from far away, she immediately covered her nose and fled far away, but Ning Feng's expression was still cheerful, and asked: "How is it? Is it working? "

"It seems to have some effect …"

Lu Shan shone his flashlight inside the safe, and saw that the metal wall inside was still emitting "chi chi" sounds. In just a short while, the metal wall had already corroded till there were craters on it. Right now, he didn't know how long this corrosive potion would last against the metal wall, and he didn't know how thick this metal wall was for now. However, Lu Shan had already determined that at least one or two bottles of Corrosion Potions would not work!