Chapter 25

In the lamp hole above the ceiling, there are lumps that are soldered with tin.

Since there is a lamp, there must be space behind the lamp cap.

There is space, there is fresh air!

If you remember correctly, the melting point of tin is not high!

White voice: "the melting point of alloy tin is between 183-380 degrees, the ceiling should be low melting point synthetic tin!"

Fang Tang nodded. Now it's more and more difficult to breathe, but there's a solution.

He went to the dizzy Yan Qingqing and stretched out his hand.

Before he met the girl, Behrman rushed up angrily: "what are you going to do?"

Fang Baiman: "shut up, I'm trying to save you!"

He reached out and pointed to the burning hydrogen: "now we have a fire. There are holes in the ceiling. As long as we melt the tin, we can open a hole."

Behrman immediately understood, eyes flashed: "yes, I, I am so stupid, how did not think of this, hydrogen is originally used for welding and flame spraying."

"Let Qingqing stand on my shoulder, just like last time! And then it's directly melted so that air comes in. " Fang Tang hoarse said: "you go to tidy up the catheter, see if the length is enough."

Yan Qingqing had woken up, not knowing what had happened.

Behrman explained to her in a low voice, then rushed to the stand and pulled the catheter: "Damn, it's not long enough!"

Zhao Chenyang was thinking about something and suddenly clapped his hands: "we have boxes!"

Yes, two supplies of plastic boxes.

Zhao Chenyang quickly put the two boxes on the ground, and the combined height was about one and a half meters.

In this way, Yan Qingqing did not need to step on Fang Tang's shoulder.

Fang Tang helped Zhao Chenyang lift the hydrogen support to the box, and Yan Qingqing climbed up.

White man picked up the hydrogen tube: "Qing Qing, you must hold your breath, be careful."

Fang Tang reminds below: "the molten tin will drip down, so you should not be facing the hole in the ceiling, be inclined."

Four people have never been so united.

And now the power of cooperation is beginning to show.

Yan Qingqing holds the catheter and finds one of the holes in the light of the mobile phone below.

"Turn off the light inside!"

Yan Qingqing turned off the light and raised the flame of hydrogen.

I heard a flutter, and then an electric spark appeared.

Yan Qingqing screamed and fell directly from the top. Thanks to Fang Tang's quick reaction, he held her tightly!

"What's the matter?" Baiman anxiously looks at Qingqing. The girl's hair is burnt by the electric spark. Fortunately, it doesn't hurt her face.

Fang Tang chagrined: "I forgot, the lamp cap is still with electricity, let me come!"

He wants to climb up, but Zhao Chenyang holds him hard.

"I'll do it!" Zhao Chenyang has climbed up the box, and then stood on tiptoe, reached out and pulled off the lamp cap.

Her movements are still very sensitive, insulated plastic lamp with a wire was pulled down.

Fang Tang was relieved.

Now, Zhao Chenyang holds the already weak flame and aims at the soldering behind the lamp hole.

Not long after, a drop of silver liquid tin fell down, making a crack, emitting a burst of smoke.

The air in the secret room has become more and more cloudy, and everyone is suffocating.

And Zhao Chenyang is the hardest. He shakes his body, bites his teeth and continues to burn the thick solder bumps.

Poof came clearly, and there was more and more liquid tin on the ground.

With another puff, Zhao Chenyang gasped: "OK, OK!"

Fang Tang hugged her in a hurry.

Above the heads of people, you can clearly feel a stream of air rushing down, just like an air conditioner.

Fresh air came, and everyone was breathing hard.

They were gasping for a long time.

"Well done!" Fang Tang was so excited that he hugged Zhao Chenyang and gave him a kiss.

Zhao Chenyang closed his eyes and his face seemed red.

Put down the brave girl, Fang Tang breathed the fresh air above, and continued to push the box. This time, he did it himself, and burned two small holes.Three wires hung down from the ceiling. The light blue flame in Fang Tang's hand finally gave out a puff, then a hollow hiss.

He jumped out of the box, shook his head, and finally ran out of hydrogen.

But the good news is that there are three holes in the ceiling, and fresh air keeps flowing in, so there's no need to worry about the lack of oxygen.

Fang Tang sat on the ground and gasped. Baiman carefully put away the last half of the glass of water.

The liquid tin on the ground has cooled.

The next replenishment is less than 20 minutes away.

Baiman stretched out his hand to straighten his hair, and said in a low voice, "we are lucky. You don't know how terrible hydrogen combustion is. It will explode at any time. If the whole cylinder is exploded, it will be terrible..."

Fang Tang nodded: "yes, if it explodes... Ah! The explosion

He jumped up, his eyelids fluttering and the corners of his mouth twitching.

Grass! Miscalculation!

Big mistake!

"Uncle, what's the matter with you?" Zhao Chenyang was startled.

Fang Tang's face changed, and he sat down dispirited: "I, I miscalculated, we lost a best chance!"

He looked at the three girls with a wry smile: "do you remember that supply hole? Behind the hole is a thin layer of steel plate. If I had thought of using the power of hydrogen cylinder explosion... We would have had a chance to explode the steel plate! "

All three girls are staring at each other.

For a long time, Baiman said bitterly: "no way, maybe we'll suffocate before that time. You, you're right!"

Fang Tang is still in chagrin.

We can hold on to half an hour of oxygen. As long as we hold on until the supply comes and the hole is opened, then

"Bai, why don't you remind me? I can think of it. You can't think of it. You're personal intelligence! " Fang Tang roared in his heart.

White voice calm and cruel: "master, I have already calculated that the success rate of your explosion scheme is only 50%, and if the hydrogen is wasted, you will not have any chance to get oxygen, then the probability of game failure is 100%."

"Master, the probability of success is too low, the probability of failure is too high, comprehensive calculation, this is not the best choice."

Bai has her reason.

Fang Tang sighed: "this time the cave is open, we don't take supplies first. I'll look at the cave again."

The gap behind the hole is the last chance to escape from the game.

20 Minutes passed quickly, with the mobile phone vibration prompt, the hole opened again!

This time, it is not a box, but two!

Two small boxes. The material of the box looks different from the last two supplies.

Not only that, the bottom of the two boxes is also full of fine sand, which seems to be used to fix the box.

Fang Tang made a sign to the girls not to move.

Then he picked up the hydrogen cylinder and aimed it between the two boxes, which was about to be smashed down.

Try the strength of the steel wall first.

If the cylinder can be broken directly, that's great.

The strength of the hand has not been used out, white voice on the sharp ring: "don't move, master, don't hit!"

"Why?" Fang Tang holds the cylinder.

"Master, look at the tips on the two boxes!"

On top of the two boxes, a piece of white paper was lying quietly.

Fang Tang carefully looked at the words on the white paper. For a moment, he was shocked and took a breath of air.

Zhao Chenyang and they all came over and saw the words on the paper. They could not help but step back. Everyone was pale!