The terrain in the mining area is complex, and Jiang Ning has also stayed in the area led by Lao Zhang during this time, and this is the first time to explore other areas.

"Damn, who made this, it's like a maze. ”

Jiang Ning walked around a few times inside, found that he was lost, and couldn't help but complain.

But soon he discovered the pattern, the whole mining area is a fan-shaped, no matter which way you enter, as long as you keep walking straight when you come out, you will definitely be able to come out.

After discovering this rule, Jiang Ning was relieved, he walked around it a few times, and found nothing unusual, but the more this happened, the more suspicious he felt, because if he was just checking the situation in the mining area, there was no need for these people to come every day, so there must be secrets in it that Jiang Ning did not discover.

"Hey, what is this?"

Suddenly, Jiang Ning found a black thing in a corner, and the light was still reflecting, although the ore in the mining area was also black, but it would not reflect the light.

Jiang Ning picked it up and looked at it for a while, feeling the slightest aura emanating from this small black stone.

"Could this be the refined Xuanbing Black Iron Ore, but why is it here? Could it be ......?"

Jiang Ning suddenly had a bold guess in his heart, that is, the black ice ore iron ore that the Lu family had stored and refined was hidden near here.

Because there is no reason for this kind of black glacial ironite, which has been refined, to appear in the mining area, this is the only reason that can be thought of.

Then Jiang Ning took a stick and knocked lightly on the wall, and the sound he heard was really different.

"It's empty, is it a door?"

Jiang Ning instantly became energetic, and this door, if you don't look carefully, you really can't find it, so it must be a door with a mechanism, since this is the case, the thing behind the door is definitely not simple.

Jiang Ning forcibly suppressed the excitement in his heart and began to look for the mechanism, but this search for the mechanism suddenly made it difficult for him, the mining area was all the same, except for stones and fragments, there was nothing.

Seeing that time was getting less and less, Jiang Ning began to get anxious, and he wanted to forcibly break through this door for a while, but in the end he resisted the impulse.

Suddenly, Jiang Ning found a different place in the higher place on the wall next to him, although it was also a black stone, but he found that the stone there was not so rough, and it looked smoother than other places.

Because people's hands contain oil, if a stone is placed on the hand for a long time, no matter how rough it was before, after a period of time, it will become very smooth, and the same is true for walnuts.

And that place is so high, no one will be idle and reach out to touch that place every day, unless it is for some special reason, such as the switch to open the secret door is there.

Jiang Ning was a little nervous in his heart, and after walking over, he stretched out his hand and pressed it lightly there, and sure enough, the secret door next to him suddenly shook, and then slowly opened.

Fortunately, the movement of opening the door was not very big, when the secret door was fully opened, Jiang Ning couldn't wait to go inside, now there was not much time left, Jiang Ning had to quickly find out the situation and leave, so as not to be discovered.

After entering the secret door, this is another cave, and it is even darker, Jiang Ning used the light of the flashlight to explore the surrounding situation, but it did not store the Xuanbing black iron ore refined by the Lu family as Jiang Ning thought.

"It's strange, it took so much effort to make a secret door, why is there nothing in it?" Jiang Ning frowned, finding that this cave was very deep, and he could continue to move forward, although it was not a lot of time, Jiang Ning still decided to continue to explore.

As he went deeper, Jiang Ning found the same fragments of refined Xuanbing Black Iron on the ground as before, and the further he went, the denser the fragments on the ground became.

Not only that, Jiang Ning also felt a strange aura, this aura was not Xuanbing Black Iron Ore, nor was it any other object, it felt like a living thing.

"Why is this aura so much like a monster?"

Jiang Ning frowned, when he was in the Heavenly Dome Continent, he had stayed in the primordial mountains to practice, where there were many demonic beasts, so Jiang Ning's perception of the breath of demonic beasts was very sensitive.

"It shouldn't be, this is the earth, why are there demonic beasts?"

As we went deeper, the aura grew stronger and stronger, but at the end of the mine, there was nothing.

"It's strange, this aura is obviously so strong, why is it empty?" Jiang Ning frowned, looking at the refined, Xuanbing black iron ore fragments all over the ground under his feet, and couldn't help frowning.

Jiang Ning looked around and found that there was no secret door, no mechanism, nothing, and the sound of tapping was solid, which showed that this was indeed a real cave end.

"It's strange, there's something wrong with this Lu family, right? I got such a secret door, and there was nothing in it. ”

Jiang Ning couldn't help but complain, but suddenly there was a new discovery.

"It's ......"

Jiang Ning looked at a stone in front of him, square, which attracted his attention, it stands to reason that in this kind of natural mine, there is nothing surprising to see a stone, but the probability of this very regular stone appearing is very small.

Then Jiang Ning stretched out his hand, pinched the gap on the side of the stone, and then pulled the stone out vigorously.

Sure enough, after a while, the stone was twitched by Jiang Ning, and the moment the stone was completely pulled out of the rock wall, the aura of the demonic beast became even stronger.

"Is it in this cave?"

Jiang Ning thought about it, and instantly released his spiritual power, directly through the rock, and probed inward.

"10m ......"

"20 Meter ......"

……

After more than half a minute, Jiang Ning's spiritual power had already explored a distance of nearly 30 meters, which was about to reach the limit of Jiang Ning's current strength that could be explored.

At this moment, Jiang Ning felt a strong heartbeat and the sound of heavy breathing.

"Is there really a beast in it? Could it be that this is being kept in captivity by the Lu family? What does the Lu family want to do?"

Jiang Ning couldn't tell whether it was an ordinary beast or a demonic beast for the time being, but what was certain was that this beast was indeed kept in captivity, because there was no water and food in this cave, even if it was a powerful beast, even if it was a demonic beast, it needed to eat and drink.

"It seems that this is the passage through which food and water are transported, right?" Jiang Ning muttered as he looked at the hole in front of him.

Suddenly, the beast opened its eyes suddenly, as if it also felt Jiang Ning's presence, and suddenly let out a roar, which directly shook the mine and began to tremble.

"Bad ......"