Zhang Yuxin snorted and said, "I kicked you, how about it? Who told you to talk nonsense! It's already scary enough, and you're still adding fuel and vinegar here and talking nonsense." ”

"Ke Yi is not wrong! I don't know when it started, I also have this feeling, and it is very strong!" Yang Xiaowu subconsciously looked behind him and said, "Because of this feeling of being followed, I have paid special attention to it, but I have not found the corpse qi! This means that if there is really something, it must not be an evil spirit like a zombie, so it can't be Tong Baichuan or Lei Batian." ”

"Whew...... How......" At this moment, the wolf king suddenly howled. Chen Keyi was originally leaning towards Yang Xiaowu, but at this time, she heard the knife pointing behind her, which was the direction in which everyone was advancing, and exclaimed, "Ghost fire!

Not only the knife, but everyone else except Chen Keyi also saw it. The sword slave picked up the short knife and rushed to Chen Keyi's year, waiting for him. Zhang Yuxin was so frightened that she hugged Yang Xiaowu's arm tightly, and her body couldn't help trembling.

Chen Keyi heard the cry of the knife and hurriedly turned around, but it was dark in front of him, and he didn't see anything, and he couldn't help but look back at Yang Xiaowu.

Yang Xiaowu smiled helplessly and said, "The knife is indeed not mistaken! Just now, a flash of fire suddenly appeared in front of us, and the fire was dark green, fluttering in the air, and disappeared in a flash. ”

Chen Keyi nodded and said, "According to what you said, it is indeed a ghost fire." In this underground pit, there is indeed a possibility of ghost fire!"

As she spoke, Chen Keyi explained to everyone that ghost fire is actually phosphorus fire, which usually occurs on dry days in summer. From a scientific point of view, it is because human bones contain phosphorus, and when phosphorus reacts with water or alkali, phosphine is produced, which is a gas that can spontaneously combust. This gas is light in mass and moves when the wind blows. When people walk, they will drive it to move behind, and when they look back, it is very terrifying, and the world is superstitious, so it is called ghost fire.

As soon as Chen Keyi said this, everyone made up their minds. Before he could catch his breath, Yang Xiaowu said: "Ke Yi, you just said that the ghost fire is produced because human bones contain phosphorus? Then, according to what you said, there should be more than one human bone here to produce ghost fire! However, since I entered the underground cave, but so far, why haven't I seen a single human bone?"

As soon as Yang Xiaowu finished speaking, a gust of yin wind struck, and the person who blew directly trembled. Xiaodao only felt cardiac arrest, his body stiffened for a while, and he couldn't help but lean towards the sword slave, and said cautiously: "Brother Yang, can we stop talking about it? That thing didn't come in the first place, but now you have said it! You see, this wind is so weird, there is no warning in advance, it must be that thing is coming!"

Chen Keyi couldn't help but comfort Xiaodao when she saw that Xiaodao was so scared, and said, "Xiaodao, don't scare yourself." This wind is the natural return wind of this underground cavern, which is produced by the convection of the air in the cave. You see, we have been in this cave for so long, and we have not experienced symptoms such as suffocation or lack of oxygen, which means that there is not only one entrance and exit to this underground cave. Any wind and grass outside the cave will cause the air in the cave to flow backwards, and the temperature in the cave is not lower than the outside, and the hole is underground, so it is naturally easier to produce the ...... just now."

"Ahh This time it wasn't just the knife, the sword slave also reacted quickly, only to see him lift the short knife and throw it towards Chen Keyi's side.

Chen Keyi's speech was interrupted by a knife, and then there was another bang, and the sword slave threw the short knife, and she immediately realized that something was wrong, and immediately turned around and kicked her legs, kicked behind her, and then turned around. When she turned around, she still didn't see anything, only the sword slave's short knife stuck in the cave wall, shaking and humming.

This time, Chen Keyi was even more depressed, she didn't turn around, just stared at the front and said, "Little knife, what did you just see?"

Although Xiaodao heard Chen Keyi's question at this time, his teeth were already chattering and he couldn't speak. The sword slave glanced at the knife and said, "Just now, there was a figure behind you!"

Yang Xiaowu also saw this scene, in comparison, he admired the sensitivity of the sword slave and Chen Keyi's reaction, made the right choice between breathing, and cooperated so tacitly, he deserved to be the most prestigious celestial master in Xiangxi.

As for the knife, although he is powerful, he has never seen a ghost, and although he has seen a zombie a few times, on the surface, they are no different from normal people. At this moment, in this underground cave, he first saw a ghost fire, and now suddenly saw an illusory figure, so how could he not be afraid.

Compared with the knife, Zhang Yuxin is not so afraid, not only has Yang Xiaowu by her side, which can give her a sense of security, but the most important thing is that she is used to seeing zombies during this time, coupled with her stronger and stronger character, it has made her start to become unfazed.

"It seems that this underground pit is really not simple!" Yang Xiaowu finished speaking, and immediately began to release corpse qi. Yang Xiaowu deliberately controlled all the zombies behind him, this corpse qi was released by himself, and its effect could be equivalent to an enchantment, but whenever anything appeared in the corpse qi, regardless of creatures and ghosts, he could detect it at the first time.

After Yang Xiaowu finished releasing the corpse qi, he said: "I spread my corpse qi behind us, this is the corpse qi exclusive to us, no matter what it is, whether he is alive or dead, I can detect it only when it touches my corpse qi." Everyone should be careful, my corpse qi is poisonous, if you fall behind and I am not there, remember to hold your breath and never inhale the corpse qi. ”

"Alright. With Brother Yang in charge, let's concentrate on the front. I don't know how deep this underground hole is, so you have to be careful. After Chen Keyi finished speaking, she continued to walk forward. The sword slave took a few steps forward, pulled out his short knife, and continued to follow behind Chen Keyi.

"Well, that, Sister Keyi. Do you think there's something wrong with the Wolf King?" After walking a few steps, Zhang Yuxin suddenly asked Chen Keyi.

Chen Keyi heard Zhang Yuxin ask this, and she also felt that something seemed wrong, but she couldn't say why, she looked at the wolf king beside her and said, "Yuxin, what's wrong?"

Zhang Yuxin said: "From the appearance of the ghost fire just now, to the appearance of a figure behind you, to the sword slave throwing a short knife, the wolf king doesn't seem to have any reaction! In my impression, the wolf king is not only fierce, but also very sensitive to those strange things!" Zhang Yuxin said this, not only Chen Keyi, but everyone also noticed the abnormality of the wolf king.

Chen Keyi remembered that in the forest before, the wolf king was keen when he noticed Tong Baichuan before everyone else, which formed a sharp contrast with the dullness at this time. She unconsciously took a closer look at the wolf king, and found that he was just staring at the front, gasping for breath, as if he had no idea of what was happening around him. The wolf king's expression was a little bit imaginary when he first saw Tong Baichuan.

Chen Keyi saw the wolf king's expression, realized that there might be danger ahead, and hurriedly cheered up his spirit and reminded everyone: "Everyone be careful, there may be some more powerful evil spirits ahead!" Hearing Chen Keyi's reminder, although everyone didn't know the reason, they also knew that it was not trivial, and they were all on guard.

Everyone walked for a while, only to feel that a strange smell kept coming. Yang Xiaowu smelled the smell and hurriedly reminded everyone, saying, "Everyone be careful, this is corpse gas!" Everyone heard Yang Xiaowu talk about corpse gas, and their hearts sank.

"Corpse gas!" Although Chen Keyi thought that there would be evil spirits in the cave, but did not find that there would be zombies, at this time, when she heard Yang Xiaowu say that there was corpse gas, although she was taken aback, she didn't feel at ease.

You see, although people are afraid of ghosts, the awe that arises from ignorance is even more terrifying. If Chen Keyi didn't know what was in front of her, she might be afraid, this was to hear Yang Xiaowu talk about corpse qi, then it was probably a zombie in front. Now that you know what the evil spirit in front of you is, you are not so afraid.

"Brother Yang, do you mean that the zombie in front of you has always been a zombie?" Xiao Dao was not so scared at this time, after all, there was a celestial master known as the most powerful in Xiangxi on his side, and a first-generation zombie, if there was really a zombie in front, then he would not be so afraid?

Yang Xiaowu shook his head and said, "I'm not sure if there are zombies in front of me." This corpse aura is so strong that it is not something that ordinary dead corpses can emit. According to my estimate, even if there are no zombies in front of you, there will be a lot of dead people!"

As soon as Yang Xiaowu finished speaking, Zhang Yuxin had already screamed, she pointed to the front, and eagerly pulled Yang Xiaowu and said, "Big brother, look at what it is, it seems to be a pile of white bones." Before Zhang Yuxin's words fell, everyone had already seen the place Zhang Yuxin pointed, and sure enough, there were piles of white bones, scattered messily at the bottom of the cave.

When the sword slave saw the white bones, he took three steps and made two steps, walked to the white bones, and examined them one by one.

When Chen Keyi saw the sword slave coming forward, he waved his hand and said, "Wait a minute, wait for the sword slave to finish checking, and we won't be too late." ”

In less than half an hour, the sword slave had already completed the inspection, walked back, and said: "These white bones are all human bones! Judging from the bones, they have been dead for at least ten years, and this kind of bone has no scars at all, and there are no signs of poisoning, it seems that they were either sucked dry and died, or they were bitten to death by zombies!"

Chen Keyi said: "It seems that Brother Yang is right, there are indeed a lot of dead people here, maybe there will be zombies in the future! But this kind of evil spirit will not tell you anything above board, so be careful not to be attacked. ”

Chen Keyi looked at the white bones on the ground, and said, "Also, the figures you saw earlier may be the creatures of these white bones! They were harmed by evil spirits before they were born, and they did not turn a blind eye when they died, and after they died, they turned into resentful spirits and wandered in this world. Since the resentful spirits did not take the initiative to attack us, they are not hostile to us, so when it is about to pass, we must be careful not to touch the white bones, so as not to provoke them and cause us unnecessary trouble!"

With Chen Keyi's reminder, everyone was very cautious when they passed by the white bone, for fear of touching it. After all, in this underground pit, there is still no one who knows what other evil spirits there are, and if they provoke the evil spirits, no one dares to imagine what the consequences will be. Even when the wolf king walked through the white bones, he was cautious, for fear that he would touch the white bones. The crowd rushed in and passed through the bones, but they were not touched because they were very careful.

After walking through the bone area, and walking for another while, the entire underground cavern began to grow taller. From less than two meters in length and width, it gradually exceeds three meters or so.

Chen Keyi found that the more he walked forward, the heavier the wolf king's panting became, and it could be seen that the wolf king was getting more and more scared now. Chen Keyi looked at the expression of the wolf king, and remembered that the wolf king had just met Tong Baichuan, it seems that the evil spirits hidden in this underground cave are not far from Tong Baichuan and Lei Batian.

Everyone walked for another while, and the whole cave was already very large, almost four or five meters long and wide, and it was almost a large corridor.

"Wait a minute!" Yang Xiaowu suddenly shouted softly, and said, "The corpse gas in front of you!

When everyone heard Yang Xiaowu's words, they were all shocked. Knife subconsciously asked, "Is it a zombie?"

Yang Xiaowu nodded and said, "Well, it seems to be right! It should be a zombie, but I don't know what kind of zombie it is." This corpse qi is not from our purple stiffness, nor is it pure as flying stiffness, I just hope it is not a hairy stiff!"