Long Fan listened to Lin Rui's narration in a daze, feeling that the history he had studied before was too fake.

Lin Rui walked to the edge of the coffin and said with blazing eyes: "After Zhang Xianzhong's death, his righteous sons all went to Guizhou to cooperate with Nanming to resist the Qing Dynasty. can be as a righteous son, of course they will revenge Zhang Xianzhong's revenge. So generations of people went to Yanjing at that time to lurk, just to kill Ao Bai......"

"And then?" Long Fan felt that it was very interesting to listen to the romance story.

"Later, after Aobai was imprisoned, those who had been lurking for many years found an opportunity to sneak directly into the captivity, killed Aobai, and took his head to worship Zhang Xianzhong."

Lin Rui told me that Long Fan himself also went to see the stone carvings, so he believed it.

"This is Zhang Xianzhong's clothed mound." Long Fan patted the coffin, and some wanted to open the museum to see what was inside.

"Yes." Lin Rui also wanted to open the museum, but before he could make a move, he heard a rumbling sound from the direction of the cave entrance.

Feeling the vibration under their feet, Lin Rui and Long Fan looked at each other for a second, and ran towards the entrance of the cave frantically without anyone speaking.

The flashlight in his hand shook wildly, shining on the dark walls, and those potholes seemed to be big mouths grinning wildly, watching Lin Rui and the two run wildly sneering.

As soon as I ran to the corridor, I saw a stone gate slowly descending above the entrance of the cave. Although the speed is not fast, it is already halfway down.

Long Fan ran away wildly, but Lin Rui stopped after estimating his speed.

It's late!

"It's late, it's a little late!" Long Fan panted and threw himself on the stone door, then muttered a thought, and slowly sat on the ground with his body soft, his eyes full of despair.

With the sound of slight footsteps coming from this sealed space, Long Fan raised his head and smiled bitterly at Lin Rui who was walking over.

"Master Lin, we're done this time!"

Lin Rui breathed for a long time, sat down, and said calmly: "Our blower has been blowing for five hours, that is to say, the air in it is enough for the two of us to consume for a period of time at this time, so try to calm down and slow down the rhythm of breathing, this is our only way to survive." ”

A flash of brilliance flashed in Long Fan's eyes, but then he disappeared again, "Master Lin, no matter how much air there is, it won't last tomorrow!" ”

At this time, what the two regretted the most was the order not to allow outsiders to come in. If there is no such order, the SWAT officers who are guarding outside can at least detect the anomaly, and then organize personnel to rescue them.

Lin Rui didn't have the time to comfort Long Fan, he just opened his divine eye and looked around the stone gate.

"Ding! The murderer: 2,500. ”

A black gas lingered in the wall on the right side of the stone gate, Lin Rui glanced at the depth, his heart perked, and he patted Long Fan on the shoulder and said, "Hurry up, I've found a place." ”

Long Fan didn't believe it at first, but Lin Rui went to the right side by himself, which made his heart move.

The right side is also a loess wall, Lin Rui kicked hard a few times, and then kicked a few more times on the side. But he is not a professional, so he can't hear the difference between the two voices at all.

But Lin Rui can't do it, Long Fan can't do it!

"Master Lin, let me come." Long Fan is an authentic physiognomy master, although he has little ability, but he has the ability to detect dark passages and hollows.

After Lin Rui dodged away, Long Fan kicked a few times, tried left and right, and then said with some hesitation: "Master Lin, the difference in vibration is relatively small, and I can't be sure if there is a secret passage in it." ”

"Master Lin?" Long Fan saw that Lin Rui was silent, so he shone a few times with a flashlight, and saw Lin Ruizheng's face happy, as if he was thinking about something.

"Master Lin?"

"Hahahaha!"

Long Fan looked at Lin Rui laughing, thinking that he was crazy in a desperate situation. After Lin Rui laughed, he forced himself to laugh and said: "Long Fan, I remember reading a question before, saying how much oxygen humans need to inhale per hour and how much carbon dioxide they produce. ”

Long Fan didn't seem to be a good student when he was studying, so he didn't understand it at a loss.

Lin Rui took out his mobile phone, looked at the place where there was no signal, and called up the calculator.

After a little calculation, Lin Rui breathed a sigh of relief and said, "I remember in a trance that it was fifty cubic meters of air at the time, and it seems that it can live for more than ten hours." ”

Long Fan thought carefully about the place he had just walked through, and immediately said with joy: "Then we have a lot of fifty cubic meters here!" Doesn't that mean we're fine? ”

Lin Rui smiled: "The concentration of oxygen in the air is 20 percent, and carbon dioxide is ...... Carbon dioxide ......"

"What happened to carbon dioxide?" Long Fan asked.

"Carbon dioxide poisoning!" Lin Rui remembered something, as if it was said that when the concentration of carbon dioxide in the air reached a few percent, humans would be poisoned.

"And the air concentration inside is not enough, maybe we are still too optimistic!" Lin Rui felt for a while that he couldn't remember the topic he saw at that time.

The two scumbags frightened themselves and quickly took action under the threat of not knowing how long the air would last.

But standing in the corridor, looking at the hard loess wall, Long Fan scratched his head and said, "Master Lin, what are we going to dig for?" ”

Lin Rui looked at his hands in the dim environment, if he dug by hand, it is estimated that he will not be able to dig through them, and these hands will be scrapped.

"Huh! Isn't there a weapon in it? Lin Rui's eyes lit up, and he remembered the weapons in the innermost cave.

"Hurry up!"

The two of them arrived in the cave and looked at the swords, guns, swords, halberds, and finally a few weapons were brought out, and even found a few sledgehammers.

Lin Rui took a sledgehammer, took out the head of a spear, and prepared to chisel.

At this time, in order to save batteries, Lin Rui's flashlight had been turned off, and he only relied on Long Fan's lighting.

"You're here to take the spear."

Long Fan fixed the spearhead on the loess and said worriedly: "Master Lin, have you ever played with a sledgehammer?" Don't beat my hands with a hammer! ”

Lin Rui picked up the sledgehammer and said with a smile: "Don't worry, in the past, during the Chinese New Year, I went to help people make glutinous rice cakes, and the hammer was much better than this." ”

Long Fan sighed before he put his mind at ease. But what he didn't know was that he used a wooden mallet to beat the glutinous rice cake, and he swung it down from behind his shoulder, and the big stone trough was many times larger than the spearhead in front of him.

But obviously, Lin Rui was born to do coolies, from the beginning of the rustiness, several times almost smashed Long Fan's hand, to the back, he used his waist strength, easily wielded the sledgehammer, sparks splashed, the spearhead was hammered into the loess.

"Pry it out." After the spearhead was halfway in, Lin Rui struck it on its tail with a sledgehammer.