C532 Kung fu does not disappoint the painstaking

After waiting for almost two minutes, the "chi chi" sound inside the safe gradually stopped, but at this time the entire room was filled with a pungent smell, and even Ning Feng was unable to stay inside the room anymore. He had already run down to the lower level to look for a gas mask.

Lu Shan held his breath and went back into the safe, carefully inspecting the results of the corrosive potion, and could not help but be happy and worried.

What he was happy about was … This potion was indeed effective. In less than two minutes, a three centimeter deep hole that was the size of a bowl appeared on the hard alloy wall.

What made him even more worried was … This bottle of corrosive potion really wasn't much use. If he wanted to corrode a hole in the metal wall enough for a person to crawl through, who knows how many bottles he would need?

One bottle for 100,000, ten bottles for one million!

However, Lu Shan did not care about how much money he would spend right now. He was only worried that after the money in his bank card is deducted, what if … If the cash couldn't be repaid, then wouldn't he be blind?

However, right now, he did not have the time to think about it too much. In any case, he had to do whatever he could to corrode this wall … At most, if he could not exchange the corrosive potion later, then he would have to think of other ways. Even if he were to use the hammer and file slowly, he would be able to break through this metal wall no matter what.

Because this type of corrosive medicine, other than this time, he might not be able to use it again in the future, so Lu Shan did not go to exchange for too much at once.

When he smeared the third bottle of Corrosive Potion on the metal wall, Ning Feng finally returned with a few gas masks.

At this moment, there was basically no one in the room, and the room was filled with pungent smoke. This was because the ventilation system of the entire base was blocked. Although the air could still be slowly circulated, it was impossible to exhaust such a large amount of smoke.

Lu Shan relied on his dense Qi to take a deep breath, and after taking seven to eight minutes, he was completely fine. However … This pungent smoke was not only inhaled into his lungs, but even Lu Shan was unable to inhale a single bit of the Toxic Smoke. After such a long time, he who had been immersed in the smoke, gradually started to feel itchy all over his body. Lu Shan rolled up his sleeves and took a look, only to see that his arm was covered with a layer of red marks, which, upon looking at, would make people's scalps go numb. It was obvious that the smog caused by the vaporization of metal was no trivial matter. Even if one did not inhale it into their stomach, it was enough to kill them!

Seeing that Ning Feng was about to rush in wearing the gas mask, Lu Shan hurriedly dragged him out. After turning his head to close the door to the study room, he said to Ning Feng, "Enough … I'll do it myself. The smoke is so toxic it's no use just wearing a gas mask. Stay away from A-Ke and you. Once the passage is open, I will call for you. "

When Ning Feng heard how terrifying the smoke in the study was, he immediately said anxiously, "Since this poison gas is so strong, I must exchange it with you! "Otherwise, if something were to happen to you, then …"

Lu Shan glared at him fiercely and said, "Don't worry … I don't think anything will happen to me. Instead, it's you... If he stayed here for too long, his skin would probably rot. Then when the time comes, you can tell me … Should I treat you or should I not? However … Don't I have to pay the price for curing you of these troublesome ailments? So … You and your sister, the two of you stay far away from me. As long as you don't let anything happen to yourself, that will be the greatest support for me … "How about it?"

Lu Shan's words really hurt their self-esteem … At that time, Ning Feng's old face turned slightly red, but... He also knew that what Lu Shan said was true. If he were to step out without caring about his safety, and if anything were to happen to him, Lu Shan would have to save him. Since that was the case, it was best to obediently listen to the arrangements.

Thinking about it, Ning Feng could only smile awkwardly, and quickly gave Lu Shan a gas mask, then ran over to find his sister.

Lu Shan's words were not really to scare Ning Feng, you must know … The Defensive Capability in Lu Shan's body was countless times stronger than Ning Feng, and now that he had been stimulated by the Toxic Smoke to the point that red patches appeared all over his body, if it was Ning Feng … That definitely wouldn't be as simple as a erythema. It might even be rotten to the bone by now!

Therefore, Lu Shan would definitely not allow Ning Feng to enter, otherwise … At that time, Ning Feng would be a skeleton's corpse. If he wanted to save, he would have to waste a lot of life potions!

Ning Feng naturally felt embarrassed to wait behind for Lu Shan to take the risk here, so he... If Lu Shan did not put more emphasis on the battle, even if Ning Feng knew that this Toxic Smoke was very powerful, and even might cause his face to be disfigured, he still might not be willing to retreat.

In fact, Lu Shan did not need to stay in the study room filled with Toxic Smoke. In any case, he had used three bottles of Corrosive Potion consecutively, and now, he had a rough understanding of the effects of this potion. Every time he smeared the potion on his face, he would immediately leave the study and tightly close the door.

This way... Unknowingly, Lu Shan had exchanged eight bottles of corrosive medicine, and smeared them all on the back wall of the safe. When he conveniently took out the ninth bottle … However, his heart suddenly skipped a beat, because even though he hadn't carefully calculated how much of the bank's balance was left, he still couldn't figure it out … He estimated that there definitely wouldn't be that many.

But now, he had exchanged for nine bottles in a row. Didn't that mean … Not only did the system store the money in his bank account, even his wealth in the real world could be taken away for him!

However, Lu Shan was relieved, after all he did not have much money left in his bank account, because he did not have a lot of cash left in his account. Even exchanging for another 100 bottles of Corrosive Potion would not be a problem, no matter how thick the wall behind the safe was, it would still be able to corrode a hole through him.

When the tenth bottle of corrosive medicine was used up, Lu Shan once again entered the study with the pungent Toxic Smoke that was so thick that he could not see anything, and dived into the safe. However, he suddenly felt a slight breeze blow past …

If it wasn't for the fact that a large area of the skin on Lu Shan's body had already started to fester, and a wisp of wind was blowing on his body, which made him feel double the pain, he probably wouldn't have discovered the existence of that breeze.

He was overjoyed. He quickly reached out his palm that was full of pus and blood and gently probed inside. Finally … When he moved closer to the bottom, he was finally sure... Indeed, there was a very minute breeze blowing in from this place.

This also meant that … Lu Shan had used ten bottles of [Metal Corrosion Potion] and finally managed to penetrate the thick metal wall.