I have been waiting for almost two minutes, and then the "snoring" sound in the safe gradually stopped, but at this time the room was full of acrid odor, and even Ning Feng could not be in this study. Staying there, I went to the lower floor in advance to find a gas mask.

Lu Shan closed his breath and went into the safe again. He took a closer look at the results of this corrosive potion, and he couldn't help but be happy and worried.

Happily ... this medicinal fruit is effective. In less than two minutes, a shallow pit with the size of a sea bowl mouth and a depth of about three centimeters has been corroded on the hard alloy wall. .

What worries him ... this bottle of caustic fruit is of little use. If you want to etch a hole in this metal wall enough for one person to drill through, you don't know how many bottles you have to use. ?

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

However, Lu Shan is not worried about how much money he will spend. He is just worried that after the money in his bank card is depleted, in case ... the cash cannot be recharged, then he will not be blind?

But now he ca n’t even think about it so much. Anyway, now he can corrode this wall to any degree ... If at most he ca n’t exchange the corrosive potion, he will think of other ways. Even if you smash it with a hammer and file it with a file, you can't get through this metal wall.

Because this corrosive potion may not be used in the future except this time, Lu Shan did not go too much to redeem it at one time, but just used up one bottle and then redeemed it.

After he applied the third bottle of corrosion potion to the metal wall, Ning Feng finally rushed back with several gas masks.

At this time the whole room was almost invisible to people, and there was acrid smoke everywhere. Because the ventilation system of the entire child base has been blocked, although the air can still circulate slowly, it is impossible to exhaust such a large amount of smoke.

Lu Shan relied on his strong breath, and after taking a deep breath, he didn't pant for seven or eight minutes continuously. But ... this acrid smoke is not only harmful if it is inhaled into the lungs. Lu Shan has not even sucked in any poisonous smoke, but after so long, he has been soaking in the smoke, but it has gradually begun. Feeling itching again and again. Lu Shan rolled up his sleeves and glanced, and saw a layer of red marks on his arm, which made the scalp feel numb ... Apparently the smoke caused by the vaporization of this metal is really no small matter, even if you Not sucking it into the belly, enough is enough to kill people!

When he saw Ning Feng wearing a gas mask, he rushed in, and Lu Shan quickly dragged him out, and then closed the door of the study, and said to Ning Feng, "OK ... I can do this alone, the smoke inside is very toxic, and it is useless even wearing a gas mask. You and Ake should stay away, and I will call you after the passage is opened! "

As soon as Ning Feng heard that the smoke in the study was so terrible, he immediately hurriedly said: "Since this poisonous gas is so strong, I will change it with you! Otherwise, if you have an accident, then ..."

Lu Shan stared at him fiercely and said, "Rest assured ... I won't have anything, but you ... if you stay here for too long, I'm afraid your skin will ulcerate. Then At that time, you will say ... I will help you or not? But I don't need to pay for the hot troubles I deal with? So ... you and your sister, you two Give me a long distance, as long as you don't have any problems, that is my greatest support ... okay? "

Lu Shan ’s words were really hurting self-esteem… Ning Feng ’s old face was slightly red at the time, but… he also knew that Lu Shan ’s words were not false. What went wrong had to let Lu Shan save him, this ... In this case, it was still honest to obey the arrangements.

Thinking of this, Ning Feng could only smile grimly, quickly gave Lu Shan a gas mask, and then went to find his sister.

Lu Shan's remarks are not really scaring Ning Feng. You must know ... Lu Shan's physical defense ability is unknown how many times stronger than Ning Feng. Now he has been stimulated by poisonous smoke to cause erythema all over his body. If this is replaced by Ning Feng ... It must be more than just erythema, maybe it's rotten to bones now!

Therefore, Lu Shan would definitely not let Ning Feng enter, otherwise ... Ning Feng would rot into a skeleton by then, and how much life potion would be wasted if he wanted to save him!

And Ning Feng is naturally embarrassed to wait for Lu Shan to take risks here, so ... if Lu Shan does not speak a little harder, I am afraid that even if Ning Feng knew that the poisonous smoke was very powerful, he might even disfigured him. He may not be willing to retreat.

In fact, it is not necessary for Lu Shan to stay in the study room full of poisonous smoke. Anyway, three bottles of corrosion potions have been used in succession. Lu Shan's effect on this potion has also been roughly counted. Every time he applies the potion, he immediately exits. Study room, close the door tightly, wait for two minutes before rushing in and continue wiping the next potion ...

So ... Unconsciously, Lu Shan exchanged eight bottles of corrosive potion in succession, all wiped on the back wall of the safe. When he successfully redeemed the ninth bottle again ... it was a sudden move in his heart, because how much is left in the bank, although he had not calculated it carefully before, but ... he estimated that it would never be ninety So many.

But now he has redeemed nine bottles in succession. Doesn't that mean that ... the system mall really can not only wipe out the money in his bank account silently, but even his real money is the same. I can take it for you!

However, Lu Shan was relieved. After all, he did n’t have much money in his bank account, but he really had a lot of cash banknotes. There was no problem in redeeming one hundred bottles of corrosion potion, no matter how thick the back wall of the safe was, how? Can also give him corrosion holes ...

When the tenth bottle of corrosive potion was used up, Lu Shan again entered the study with acrid toxic fumes that were too thick to see, and plunged into the safe, but suddenly felt a slight breeze ...

That faint breeze, if not for Lu Shan's whole body skin has already begun to ulcerate in a large area, at this time a thin breeze blows on his body, it will make him feel a double sting, then he may not find it at all This breeze exists.

He was a joy in his heart at the moment, and he quickly found out the pus and blood-filled palm, and gently explored it, and finally ... when he moved to a lower position, he finally determined ... this place really has a trace of extreme The slight wind kept blowing in.

This also means that ... Kung Fu does not bear hard work, Lu Shan used ten bottles of strong metal corrosion potions, and finally penetrated the thick metal wall ...

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