After waiting for more than 20 minutes, seeing that the smoke and dust in the tomb had dissipated a lot, Chen Ziyang took a hand-held oxygen cylinder and drilled into the thief hole.

This time, Umbrella Shishuai bought a total of two oxygen cylinders, three of each. One is the small one that Chen Ziyang is holding now, which looks like a bottle of spraying insecticide, with a breathing mask attached to the spout that can cover the nose and mouth. This kind of oxygen cylinder is very light, but it contains very little oxygen, only enough for a person to breathe continuously for 30 to 40 minutes, and it must be held by one hand when using it, which is very inconvenient.

Another oxygen cylinder is a 10-liter large oxygen cylinder, a meter-high, dark blue cylindrical alloy oxygen tank, the oxygen in it can allow a person to breathe continuously for 10 to 12 hours, but the disadvantage is that this oxygen cylinder is very heavy, about more than 20 catties, and the volume is relatively large, it can only be carried behind the back, from the pressure reducing valve at the nozzle of the oxygen tank, a tube is connected to the other end of the tube, and the other end of the tube is also connected to a mask, which is tied with an elastic band that can be directly put on the face, freeing a hand.

Although through the oxygen mask, Chen Ziyang could still smell the residual smell of gunpowder and dust in the thief cave. Reluctantly climbed to the tomb door with one hand and looked, Chen Ziyang was secretly happy. The effect of the blasting was better than he expected, it was like a professional directional blasting, because Chen Ziyang placed the explosives relatively far inside, so most of the gravel jumped into the tomb, and only a small part fell into the robbery hole, and did not block the robbery hole. The rock roof at the top of the tomb door was blasted open with a large gap to accommodate a person to pass through.

Chen Ziyang, who was overjoyed, shouted that Yang Lei put in the artifact of digging the robbery hole, slowly cleaned out the gravel in the tomb, and then drilled out of the robbery hole and told everyone to eat something and rest, tidy up their things and prepare to enter the tomb.

Yang Lei was timid at this time, and said boldly: "Er Yang, don't we need to release the poisonous gas in the tomb, it's dark now, let's put it overnight and go in tomorrow." ”

"It's the same when you go in during the day and at night, it's all dark inside, and this tomb is not ventilated, and it's useless if you can't ventilate, you have to suffer this knife sooner or later, come early and be happy, and the province has many long nights and dreams." Chen Ziyang said while eating Snickers.

After a busy day, it was already dark at this time, and the three of them took their backpacks and entered the tomb in turn. Originally, Yang Lei also suggested leaving some unnecessary things outside the tomb, but Chen Ziyang disagreed, there was not necessarily a situation inside, and he had to plan for the worst, and it was still good to carry all the things, and he couldn't say when he would use them.

Umbrella Shishuai tied a rope at the opening above the tomb door, and the knot tied by the sappers was very strong, and the three of them followed the rope over the tomb door more than three feet thick and went down to the tomb road.

There are a lot of gravel piled up in the tomb, it is estimated that it fell after the explosion of explosives, Chen Ziyang adjusted the flashlight to astigmatism, and the umbrella Shishuai's flashlight to high beam, in order to save electricity Yang Lei did not turn on the flashlight, only used the headlamp. The three of them followed the flashlight of the umbrella stone handsome and looked at the distance of the tomb, the long tomb was pitch black, and they couldn't see the end at a glance.

The mask of the 10-liter oxygen cylinder was well sealed, and Chen Ziyang did not smell any more peculiar smells. But the goggles are not breathable, Le's eyes are very uncomfortable, and Chen Ziyang has a feeling of wanting to cry.

The entire tomb road, except for the tomb gate, is made of hollowed out rocks, not like Chen Ziyang thought that the mountain was hollowed out and then built with stone bricks. It is no wonder that such a long tomb road requires a lot of work to be built with stone bricks, not to mention that the mountain wall is already very strong, and there is no need to reinforce it. It can be said that this tomb is a huge cave. Chen Ziyang and Yang Lei walked in the front and last with sapper shovels in their hands, and Yang Lei walked in the middle with his five-shot shotgun.

The whole tomb is very clean, the mice and insects and other things in Chen Ziyang's imagination do not appear, the air in the tomb is very humid, and the humid air is attached to the sweaty bodies of the three people, which makes people very uncomfortable.

The three people touched the wall of the tomb road, and advanced about a hundred meters along the tomb road, and suddenly a relatively narrow fork appeared on the right side of the three people, the fork road was actually like a small cave, the hole more than two meters high was dark and terrifying, and the flashlight that shone into it was absorbed by the darkness, as if a monster was waiting for its prey with its mouth wide open.

"Do you want to go in?" Yang Lei saw that the darkness in the cave was terrifying, and he retreated.

"Come in, what are we doing here, you forgot, how can you sell it for money if you don't look for something." Chen Ziyang took the lead in getting in.

As soon as Qian Yanglei was mentioned, he immediately came to his senses, and he became bolder, so he hurriedly followed. Umbrella Shishuai stood at the entrance of the cave, illuminated the left and right sides of the tomb with a flashlight, looked at it carefully, and then slowly retreated into the darkness.

"Damn, it's really his grandmother's poverty, I've never seen such a poor person, are we too late, this place has been emptied?" Yang Lei looked at the empty cave and said very depressedly.

The three of them walked a long way down the cave into a huge stone chamber, but to their great surprise, it was so empty that even the poor god would cry when he saw it.

Chen Ziyang was also very puzzled, it took so much effort to dig a cave and not put anything, this is unreasonable. But then Chen Ziyang walked around the cave, and found that this cave was different, in the direction directly in front of their entry, there was a huge stone wall, because the color of the stone wall was the same as the color of the surrounding mountain wall, so Chen Ziyang didn't pay attention at the beginning, but the flat stone wall is still very different from the stone wall.

Shining a flashlight on the stone wall, Chen Ziyang found that there seemed to be something carved on the stone wall, but the dust filled the lines on the stone wall. Chen Ziyang touched the stone wall with his gloves and found that the stone wall was indeed a mural, but the mural was slightly shabby, with no color, no painting, only simple lines carving something.

Seeing that there was nothing worth taking, Chen Ziyang didn't want to waste time on the mural, so it was important to get down to business first. So he led the other two people back.

The three people who returned the same way walked for a long time, and Umbrella Shishuai said strangely: "Do you think this road seems to be a little longer?" ”

"No, old umbrella, are you tired of walking, can this mountain still grow, why does the road become longer by itself." Yang Lei replied.

Hearing this, Umbrella Shishuai didn't say anything, but raised his vigilance. Chen Ziyang also reflected when he heard the conversation between the two, as if the road was longer than when he came. But when he saw the exit in front of him, he was relieved, maybe he was really tired, so he felt that the road was long.

The cave that the three people encountered before was on the right side of the tomb road, and if you go back to the right the same way, it is the direction to continue to go deeper, Chen Ziyang walked back into the tomb road, and continued to walk to the right.

After walking for a while, Chen Ziyang was stunned when he saw something in front of him, only to see that the tomb door was standing in front of them, the ground was covered with rubble, and the rope they used when they came in was still hanging there......