On the cliff, everyone pulled the hemp rope and quickly slid down, the twenty-meter hole was very large, very conspicuous, and the killers of the smiling coffin all slipped towards the hole.

Li Mu kept putting the hemp rope in both hands, and his body was sliding down rapidly, at this moment, he was more excited than ever.

Because this five-star tomb is the ancient tomb that ended itself in the previous life, although it is not a tomb, but it is the same star.

Thinking about the past three years in his previous life, Li Mu couldn't help but sigh, but fortunately, God was in love, maybe he was extremely lucky, and Li Mu got a chance to start over.

And this opportunity made him stronger, and once again came to the five-star tomb.

The tomb is on top of a cliff, which is undoubtedly a very dangerous place for ordinary players, but it is extremely challenging for Li Mu and others, and this challenge makes them very excited.

Isn't it how dangerous is the tomb crossing? It's the difference between the five-star tomb and the first four-star, and their excitement comes from the high-level equipment they imagined.

And whether there is high-level equipment or not, then you have to go in and see to know.

Everyone slid down for more than two hundred meters, and finally came to the entrance of the tomb, Li Mu rushed in first, and the rest of the players followed, and the eyes were broken feather arrows and wood, presumably blasted and blown up just now.

If fifty people want to enter all, the people in front must go inside, Li Mu walked in the front, and the more he walked, the darker it became, and the only light at the entrance of the cave was also covered by all the players who entered.

He took out an energy bar from the bracelet and gently pulled the board, and the energy bar emitted a white light, illuminating the surrounding five meters. There was not a single wall to be seen.

The players cautiously leaned around, and by the time they reached the wall, the distance between the four sides was more than twenty meters, that is, it was a room that was twenty meters wide.

It is surrounded by stone walls. Overhead, it is also twenty meters high, which is very suitable for the width of the cave, and the room is empty except for all the players, and the only thing that attracts everyone's attention is a two-meter-wide tomb passage.

After a slight hesitation, Li Mu took the lead in entering the tomb, and the energy bar in his hand illuminated all the routes ahead. Within five meters, it is clear at a glance.

The tomb road is not special, it is still the same as other star tomb roads, and fifty people began to walk towards the only tomb road, and this row is long enough.

However, the width of the tomb is two meters, and there is no problem for two people to walk at the same time, under the glow of the energy bars gathered by all players. The originally dark tomb became bright.

"Whew"

Out. The sound of inhalation was very slight, but it could be heard clearly at the moment, and you can imagine how quiet it was in this tomb, and they were silent. There was only a slight sound of breathing, and although they tried to keep their breathing very small, oxygen did not allow it.

Lack of oxygen, that's right, fifty people have just walked into the ancient tomb for less than ten minutes. Oxygen began to deprive, which absolutely had never happened before.

Even Li Mu was shocked in his heart, even if it was a five-star tomb, he had never encountered this situation in his previous life, but now, the shortness of breath told him that there was a great lack of oxygen in the tomb.

"Pull away and form a five-meter formation." Li Mu said loudly.

Now he thinks that it is the players who are getting too close, and they are in the graveyard at the moment, which is causing the lack of oxygen, and it may be better if he distances himself.

Sure enough, hearing Li Mu's words, all the players began to distance themselves, and the oxygen was indeed smoother, but the players who walked in front, the more they went inside, the more uncomfortable they felt, and what they breathed in was almost not oxygen, but corpse gas, with corrosive corpse gas.

"Nosebleed, hell." One player whispered, and although his voice was very low, the surprise in his tone was heard by the crowd.

Immediately after, more than one player began to bleed, two, three, and so on, their chests were stuffy, their breathing was blocked, it was almost like they were going to be suffocated to death, if it weren't for the fact that their strength had reached a certain point, they could breathe through mana, and they would have suffocated to death.

But even so, the gas they inhaled had an acidic and foul smell, and when they inhaled, it was a little pungent, and then it stinged, and they began to bleed.

Li Mu walked in the front, but he didn't have a nosebleed, but he also noticed the strangeness of the players behind him, and he didn't know what the reason was for a while, but looking at those players who were usually arrogant, they were frowning at the moment, and they knew that this five-star tomb was completely different from the five-star tomb he had entered in his previous life.

"Go back the way you came, breathe in the air." Li Mu said.

This sentence may be very confusing, but those killers did not hesitate and began to withdraw quickly, because if they stayed for a moment longer, they would feel that the breath in their bodies would be less, and if they could not exchange oxygen and rely on mana to regulate their breath alone, when they encountered danger, their combat effectiveness would be greatly reduced.

So as soon as they heard Li Mu say retreat, they almost didn't hesitate to retreat, but ten minutes had passed, and they hadn't retreated to the entrance of the cave, which was absolutely weird.

"No way." A killer said, Li Mu's face changed greatly when he heard this, although he had thought of this situation, but when it really happened, he was still a little uneasy.

His gaze swept over the brows of the killer, and at this moment, ninety percent of the people were frowning, looking extremely unhappy and uneasy, and even a little uncomfortable.

But Li Mu didn't feel anything? And the entrance of the cave is twenty meters, and it is on the cliff, in this case, the lack of oxygen seems to be a little unreasonable.

However, now that the entrance to the cave is gone, there is only one way to come, and there is no way to return the original way, which is really frightening and incredible.

They didn't walk fast, at most a few hundred meters, and they didn't hear the sound of the mechanism on the way, and the stone wall didn't look like the mechanism could be moved.

Then all this is really inexplicable.

Players with nosebleeds no longer dare to breathe, they all hold their breath, use mana to swim around their bodies, perform pranayama, and spit out from time to time, but do not inhale.

What they spit out is the turbid gas of mana transformation, and in this way, mana will definitely be consumed, and if they encounter any zombie monsters or the like, it will be even more troublesome.

Li Mu was very puzzled about the current situation, and after thinking about it carefully, he could only think of one explanation, that is, in this team of fifty people, 90% of the people were below level 50, and there were only two or three players above level 50.

Li Mu has seen that all C-level fighters have no nosebleeds, and their breathing is normal, which is not caused by lack of oxygen, or rather, C-level players have some immunity to that breath. (To be continued......)