The panther could no longer be invisible, it bore the brunt of the blow, its skull shattered, and only a trace of breath remained, sustaining the last of its life's features.

The black man was also dizzy from the crash, but most of the damage was shared by the black panther, so he quickly came to his senses. Regardless of his injuries, the first thing he did was to treat the panther. This is the magic pet he has cultivated with all his might, from the C-level when he first got it, to the current S-level, and the price spent in the middle is simply an astronomical amount. This black panther is not only fast and powerful, but also can release shadow arrows from a distance, melee claw strikes, and a chance to release illusions to trap enemies, and after merging with its master, it has a lot of bonuses and special effects, and can also take on tasks that humans can't receive.

Unexpectedly, today was just a round, and he was defeated by the most useful and practical Wind Thorn, and this defeat was the line between life and death. But this is an accident or inevitable, he is no longer in the mood to think about it, as soon as the panther dies, his strength can be said to have returned to before liberation all at once.

Hao Fei ignored the enemy, but walked to the side of the stone wall and studied it carefully.

He wasn't a stonemason, but he knew that it was impossible for ordinary stones to smash such a third-order creature into mud, even at that speed.

The outermost stone wall, which is less than half a meter thick, is made of ordinary mountain stones, and the further you go inside, the harder the texture of the stone becomes. This is a very high-end ore, Hao Fei has tried, with his grip, he can't crush the ore after three meters with one hand.

But that's not the point, the point is that this stone is poisonous. This toxicity is imperceptibly affecting living things, especially in the outermost layer, the ore content is not high, and the system does not have any information about poisoning. But when he goes within three meters, the system will send a prompt every half a minute.

"Ding: The player takes damage from an unknown toxin, losing five health points per second, and slightly changing the structure of their internal organs."

Five points of damage are inconspicuous, and many people's recovery power can be counteracted, and Hao Fei is not a problem. However, Hao Fei's resistance is extremely high, and he can still be poisoned in this situation, which is enough to show the strength of this toxin. And only a person like him who has reached the subtle realm and runs through the meridians of the whole body can perceive the erosion of this toxin, and the system will have a hint.

And the most lethal is the one in the back: the change of the internal organ structure!

What is this concept?

It's not broken, it's not displaced, it's equivalent to replacement. It is conceivable that when the structure of human internal organs changes, it becomes the structure of plants, it becomes the structure of metal, can that person still live? What other medicines can be cured?

Hao Fei exited the three-meter-deep pit and looked around. He was completely convinced that this labyrinth must be made entirely of this kind of ore, and it might be fine in it for a short time, but as long as it took a long time and there were too many internal organ lesions, even the Great Grandmaster would be powerless.

The labyrinth and the poisonous ore that can't be resisted, this is the killer move hidden by the treasure.

After understanding, he couldn't delay any longer, and Hao Fei swept towards the hole next to him.

Black players are concentrating on healing their pets, and the panther is mortally wounded, but it will not be able to heal it for a while. But he still had some thoughts on Hao Fei, and when he saw that the other party didn't pay attention to him at all, he was relieved and nervous at the same time. Because the entrance of the cave that the other party entered was the entrance chosen by his own team, and it was completely cut off from all communications, he had no way to notify him.

The reason why Hao Fei was able to distinguish the route taken by the people in front of him without hesitation was actually thanks to this black animal trainer. As an animal trainer, he not only cultivated a black panther, but also cultivated a large group of common mutant insects "soil lice". This insect is highly adaptable, making it ideal for pathfinding, tracking, and reconnaissance work. When Hao Fei entered the cave, the Demon Eye saw a large number of these insects entrenched, and the strange thing was that at many forks in the road, there was only one entrance with this kind of insects, and after considering it, he understood that this was a road sign laid by others.

Walking along the road with earth lice, I didn't encounter too many obstacles, so I could quickly catch up with these people all the way. Because of this secret, Hao Fei would not have killed this black player, and he still needed these lice to help guide him.

Picking up the lantern, Hao Fei quickened the pace of tracking, and it didn't take long for him to discover another secret.

Kuroko told him to follow the lamp at that time, originally thinking that he was simply asking him to quickly find those people, but now he understands that this ever-bright lamp is an existence that can drive away drugs.

Ever since he knew that this labyrinth was made of poisonous ore, Hao Fei had been paying attention to the condition in his body. Along the way, although the health has not decreased, the internal organs have indeed changed slightly. The change is very small, and it may seem like it is not there to observe it with subtle perception, but it is changing, and it is getting faster and faster. Such a change is not a problem in a short period of time, and it should be self-healing as long as you leave the poisoned mine area. But if it lasts for about ten hours, I am afraid that it will become irreversible.

Hao Fei was also hesitating, whether to pursue it, the other party should not know the existence of this poisonous ore, just need to fend for themselves, there is no need to put themselves in. But he can't gamble, Diao Buyu hasn't killed yet, if he lets these people go again, his mission will be regarded as a failure, and he will be sorry for the trust of others.

Luckily, Lady Luck was on his side, and after walking a distance with the lantern removed from the wall, he noticed that there was no change in his body. This is a good inference that these everlasting lamps are the existence that can dispel poison.

This discovery made Hao Fei feel very good, if the other party didn't know this secret, then this could become his hole card, even if he couldn't beat it, it would consume him to death.

The number of soil lice is getting smaller and smaller, and only a few lie on their stomachs every five or six meters, and their vitality is extremely weak. This is not only because they are not numerous, but also because of the increasing number of traps that are causing trouble for their predecessors as well as affecting them.

There are some sustainable traps such as strong acid pools, highly toxic channels, etc., which are difficult for even these special soil lice to overcome. Even these small creatures with extremely strong survivability can't hold on, and Hao Fei can't just break through with a big grin.

To get through these places, you have to have the corresponding things to deal with. There are a lot of things that can be worn in his space bag, but they are all strange, not regular equipment, who calls Li Laoquan a tool maker.

The masked towel that can reduce its own noise can also be anti-toxic, and the mink fur that can reflect radiation actually has a special effect of female NPC favorability +1, and the cloud-stepping insole does not accelerate but can make the shoes ignore strong acids and alkalis.

Although it is strange but practical, Hao Fei chased faster after replacing them. And the other party is a pathfinder, and the speed is originally very slow, and in less than a quarter of an hour, the two sides met.