The air in the coffin was already very thin, and as for the high-density oxygen in the cylinder, it was also consumed in the underground cave, and Han Fei didn't know how long the remaining oxygen would last, and now the three of them were holding their breath, for fear that they would waste a trace of oxygen.

The Kunlun wood, which was originally as black as ink, immediately changed color when it came into contact with the open flame, and after a while, it became yellow, and then slowly showed signs of shrinking, and in just a few breaths, a small hole the thickness of a finger was burned out, revealing the hard stone ground below.

Han Fei and Sweet Potato both looked happy when they saw this, the two glanced at each other, and then continued to scorch other places, wanting to get out of this place, flowing through the underground river here was their only choice. At present, what can stop them is the coffin made of Kunlun wood, as long as a gap can be opened under the coffin for people to pass, the rest is not to worry.

It's just that the biting sound around them is getting closer and closer, and the closest place to them may only be three centimeters to be bitten through. Now they have to race not only against time, but also against the oxygen in the coffin!

The oxygen content in the coffin has become lower and lower, and the flame of the lighter is slowly shrinking, and it may be completely extinguished at any time, and at this moment, the gap in the circular passage under the coffin is still far away, according to this situation, even if the oxygen in the coffin is completely exhausted, this gap may not be able to cauterize.

Although Han Fei and Sweet Potato were silent, their faces were already full of anxiety, Caiya saw this scene in his eyes, and then silently reached into his arms and took out a small plastic bag, took out a knife and gently cut through the seal on it, and the flame that was about to be extinguished suddenly became bright again.

Han Fei and Sweet Potato were both surprised when they saw this, and after looking at the broken plastic bag in Caiya's hand, the two of them seemed to realize something, but it was obviously inconvenient to ask at this time.

With the replenishment of this packet of oxygen, Han Fei smoothly burned a circle on the coffin board below, and then pressed his hand on the center of the circle and slammed his hand into a force, only to hear a "bang", and a circular gap opened.

Han Fei and the sweet potato looked excited, and they hurriedly put the round Kunlun wood aside, just looking at the blue-gray stone slab below, Han Fei's face also showed a trace of solemnity.

In the tomb before, I tried my best to tear apart the stone slab in the tomb, but if this stone slab was completely opened up and penetrated into the underground river below, it would be a huge amount of work.

If the lack of strength produces a large amount of rubble, the next work will undoubtedly be more difficult, and the next thing you want is to send a thunderous blow with the momentum of ten thousand jun, and instantly crush a whole stone into the underground dark river. This will ensure that they can escape before the flying insects enter.

It's just that one punch shatters the stone slab and one punch sinks the entire stone slab, which are completely different concepts, and it is obviously impossible to sink this layer of stone without the help of external force.

Han Fei silently took out the finger bone that was as warm as jade, and a trace of helplessness flashed in his eyes, making a deal with the demon, but if there was a slightest possibility, he didn't want to use this phalanx easily.

"Boom-"

A loud bang was like a flash flood, and I don't know if it touched the core mechanism of the tomb, or if there was a structurally unstable fault below the tomb, Han Fei's punch went down, and the entire tomb caved down, and then he heard a "bang", as if something had fallen into the water, until the gap under the coffin kept gushing out clear river water, and the sweet potatoes and vegetable teeth came to their senses!

Although he knew that Han Fei was extraordinary, he didn't expect that his punch would collapse the entire stone layer, and even the entire tomb would fall into the underground river below.

Even Han Fei looked at the warm jade-like phalanges in his hand in surprise, and suddenly had a feeling that he had been calculated.

Originally, he was desperate and had no choice but to borrow usury from others, but he pressed his handprint in a daze, until he found out afterwards that he was only going to borrow 3,000 yuan, but the other party lent him 30 million!

Thirty million, it's still a loan shark! Han Fei looked at the phalanges in his hand for a long time, and finally resisted the urge to throw it away.

"Brother, what's wrong with you, hurry up and get ready to go into the water!" Sweet Potato urged, and then quickly continued to take a deep breath.

At this moment, the water has spread to their waists, and the remaining air in the coffin is becoming more and more scarce, so it is even more important to breathe quickly, so that the cells in the body can metabolize as much carbon dioxide as possible, and then take a big breath before entering the water, only in this way can they last longer in the water.

Han Fei knew that now was not the time to be entangled, so he also took a few deep breaths at the moment, and then preemptively dived into the water layer first. After all, this is the bottom of the ancient tomb, and I don't know if there will be any danger hidden in the water, but fortunately, there are still some fixed light sources on them, otherwise they can only be blind for a while in the dark water body.

Han Fei opened the way in front, followed by sweet potatoes and vegetable teeth. Han Fei was originally worried that these two people would not be able to keep up with his speed, but in this situation, it seemed that he was too worried.

People who walk in the ancient tombs all the year round, there are really few simple characters, just such a good water nature, if you don't rob the tomb and go diving in the future, you may be able to get a world champion back.

Han Fei just thought about it in his heart, then raised his flashlight and continued to swim forward, there were several narrow passages in front of him, and the underground dark river flowed in from these passages, Han Fei calmed down. Then he beckoned to the two behind him, and then headed for one of the passages.

The current in front of him was getting more and more rapid, and after about half a minute of sneaking, Han Fei also felt a little dizzy, holding back for so long. Han Fei was almost at the limit, and he saw that he was about to swim to the exit of the passage, and he didn't know how long he would have to swim before he could get out.

Han Fei had just reached the exit, when he suddenly felt a huge force lifting his whole person upward, spraying upwards like a rocket rising into the air, Han Fei knew that this should have touched a rising spring, but the moment he was shot out, Han Fei still struggled to open his eyes and look down.

I don't know what is underneath, but it actually illuminates the bottom of the water layer slightly, which is inadvertently skimmed. Han Fei's pupils also constricted, and the moment he was shot out, Han Fei saw it......

"Bang"

A column of water with a diameter of more than ten meters shot out, and Han Fei also fell back into the water from mid-air, followed by the second and third water columns. After a while, sweet potatoes and vegetable teeth also came out of the water.

"Oh Brother Gua! I didn't expect us to be alive!"

"yes, I really didn't expect us to come out alive, thanks to that brother!" said Sweet Potato excitedly. This feeling is like a new life, sweet potato then realized something, hurriedly looked around, and immediately shouted at Caiya: "What about that brother! Where is the others? Why didn't you see him come out!"

Caiya was also nervous when he heard this, and he looked around at the moment, and finally saw a black spot on the water not far away, and then shouted loudly: "Little brother is there!" But looking at his appearance, it seems that he has fainted, let's swim over quickly, it was a blowout just now, I don't know when the dragon's breath will be, once the dragon's breath occurs, then the three of us will be born and die!"

Sweet potato naturally understood the seriousness of the matter, and there was no delay at the moment, so he immediately swam towards the place where Han Fei was with Caiya......

The midday sun was exceptionally bright. Han Fei also slowly woke up from the smell of barbecued meat, and only then did he regain consciousness a little, and he felt that someone had a little water on his lips, and then fainted again.

In the dry stone cave, the faces of sweet potatoes and vegetable teeth were very unsightly, and looking at Han Fei, who had already become a bloody man, the hearts of both of them sank to the bottom.

"Brother Gua, according to the current situation, I'm afraid that the little brother won't be able to hold on. Caiya said worriedly.

The sweet potato was silent, still carefully feeding Han Fei water. When he first came up, it was fine, but after a while, blood began to seep from Han Fei's body, and the sweet potatoes and vegetable teeth had tried all the methods they could, but they couldn't help Han Fei stop the bleeding. It's been a morning, and the blood in Han Fei's body has almost lost, and now he has a high fever again.

If Han Fei was in the emergency ward now, he might still be saved, but there was a shortage of medical treatment right now. In addition, they are in a mountain forest again, and they don't know how long it will take to get out of here, maybe Han Fei won't be able to survive halfway.

Thinking about their common experience in the tomb, even the sweet potatoes who were used to seeing life and death were full of tears in their eyes at this moment, as the world went by, Han Fei's breathing became weaker and weaker, and the sweet potatoes and vegetable teeth were silent for a long time, and then tried Han Fei's snort, and the two big men couldn't help crying.

Han Fei was woken up by a burst of crying. I thought to myself, who is crying and mourning, crying early in the morning, and not letting people sleep!

But Han Fei was so tired now, he was in a state of semi-consciousness and semi-coma, and after a while, he fell asleep again, and the blood-colored meridians hidden under the biochemical suit also became more and more peaceful, until it spread to Han Fei's heart.

In front of a dirt pit, sweet potatoes and Caiya were panting, Caiya glanced at the big pit that he had worked so hard to dig, and then at Han Fei, who was sleeping peacefully beside him, his eyes were full of satisfaction.

"How about the little brother, buddy is good to you, I couldn't afford to buy a villa to send you when I was alive, and I gave you such a big pit after I died, and I soaked a few ghost girls in the future, and a few people won't feel crowded when they roll in the pit. Caiya gasped and said in relief.

Hearing this, the sweet potato glared at Caiya fiercely and scolded: "If you don't speak, no one will treat you as a dumb person!"

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