After sending Xu Mao away, Lin Tian picked up the hoe that the worker had placed in the ground and dug decisively.

He can sense the underground structure, knows how to dig tunnels, and can safely reach the shielded location, which is about ten meters away from the ground.

It only took him ten minutes to dig the tunnel without breaking a sweat.

After digging a slope tunnel of about thirty meters, Lin Tian stopped what he was doing. The thing was in front of him.

With a wave of his hand, all the dust on the thing flew and piled up behind him.

Lin Tian looked at it with a flashlight and saw a box made of stone with an ancient design style.

Using stone to make a box is strange enough, but the key is that there is a lock hanging on the opening and closing part of the stone box. This lock is iron-black and is not made of ordinary metal.

He became puzzled.

"What's in there? Is it necessary to lock it in here?"

Lin Tian sensed his surroundings and heard the subtle sound of running water coming from the soles of his feet.

"So that's it, the bottom of the box is soaked in groundwater."

He stood up with his hand knife and thrust it into the upstream soil. When he pulled out his hand, he carefully felt the water on his fingertips.

"There are not many impurities, and it has a different smell from water from wells."

He went to the lower stream again, that is, the water flowing past the stone box, and dug his fingers into the ground to get water droplets.

"The water here has the same smell as the water from a well.

I see."

The truth is revealed.

Originally, this underground hot spring was non-toxic, but after flowing through this strange stone box, it became poisonous.

The problem is with this stone box.

Lin Tian narrowed his eyes and tried to sense the stone box again.

He found that the box seemed to be firmly welded to the land, tightly connected to the earth.

"It's not like you're locking something evil underground, is it?"

Lin Tian had heard some rumors that there were many monsters and ghosts in this vast land, but most of them were sealed away.

For example, in Jingzhou, there is a Suolongjing.

Even with his strength in the realm of infant transformation, he can't feel what's inside, which proves that it was the work of someone stronger than his cultivation realm.

"Didn't you say that there are very few people on earth who are in the foundation-building realm, and there are almost no Hedan?"

Lin Tian felt that he needed to re-evaluate the monastic world.

Lin Tian looked at the lock and suddenly felt blessed.

"Don't I have a master key?"

Ah Cai said that the master key can open all locks.

Lin Tian thought he could give it a try.

The shape of the keyhole of this lock is very complicated, like a hollow animal.

It is difficult to find a key that matches its shape.

Lin Tian took out the master key and inserted it into the lock. The moment the key hit the keyhole, something changed.

The key changed into a shape that matched the shape of the hollow keyhole. Lin Tian took a cursory glance and felt that it looked a bit like some kind of beast.

After the master key changed, it was automatically inserted into the keyhole.

"despair!"

Lin Tian heard a small sound and was overjoyed to know that the lock had been opened.

"Ah Cai, you didn't lie to me."

He took back the master key, looked at the stone box in front of him, and waited expectantly for it to open.

"Kakaka..."

"Xiao Qi, create a barrier for me to prevent anything from escaping."

Curiosity is curiosity and should not be taken lightly.

"Yes Master."

The stone box moved and slowly opened. As the box opened, Lin Tian gradually saw the scene inside.

It was endless darkness, so dark that it was hard to see what was inside, and then, waves of whistling wind surged up from below.

Lin Tian waved his hand gently, and the wind dissipated.

He sensed the situation underneath and discovered that there was a deep hole under the ground, with an endless feeling that seemed to lead to the end of the world.

At a certain critical point, Lin Tian felt dizzy and could no longer sense.

Just a simple perception made Lin Tian break out in a cold sweat.

Looking at the stone box that was only one-third open, Lintian sighed.

"It's better to close it first, it's such a troublesome time."

He pressed the lid of the stone box and closed it. He suddenly felt a strong resistance that prevented him from closing the lid.

Lin Tian frowned, jumped up, and sat on the lid.

He hit hard and finally let the lid fall down.

When the lid was closed, Lintian locked the lock again with the master key, looked at the motionless stone box, and wiped his sweat.

"Who would have thought that closing the box takes a lot of effort."

In his current state of cultivation, it is difficult for such a thing to happen.

Somehow, he remembered going to the bottom of the sea in Xumiru.

How deep is the underground of Sumeru Sea, and what is its connection with the underground of this stone box?

He hasn't figured out Xumihai yet, and it's beyond his ability.

When his realm reaches a higher level, he may be able to know more secrets.

Lin Tian said to Xiao Qi: "Xiao Qi, add a stable barrier to this stone box. If anyone touches it, report to me immediately."

"Okay, Master."

Lin Tian found out the situation and found that the well water could no longer be used. He went back to the ground to get a glass of water and was going to give it to Jiang Mazi for testing.

He wanted Jiang Mazi to examine the condition of the water from the perspective of modern technology and a Taoist.

Behind him, clematis vines were busy filling tunnels and restoring the farmland above to their original appearance.

He went back and told Xu Mao to have someone come over and fill up the well.

Just after the call was made, an incoming call came in.

It's an acquaintance whom I haven't contacted for a while.

"Zi Bingbing, do you have anything to do with me?"

Zi Bingbing's complaining voice came.

"Why can't you get through on the phone? It's so late and you're still in the mountains?"

The corners of Lin Tian's mouth twitched.

"What do you want from me?"

"You still have the nerve to say, do you know what Ziyang Villa does?

Spa Resort!

Since you have produced underground hot water in your field, you should contact us as soon as possible and cooperate with us in doing business."

It turned out that this was the reason why we came here. As expected, it was Ziyang Villa, the intelligence gathering agency, who got this information as quickly as possible.

"The information you got is not very accurate. There is underground hot water produced in the fields, but the water is seriously poisonous and cannot be used for hot springs.

I'll have people come over tomorrow to fill up the well, so don't worry about it."

Zi Bingbing murmured in a low voice: "These people are serious about what they say. They only half-speak. I'm really convinced."

Immediately, she said confidently: "No matter, I am already near your house now, I have to come and take a look anyway."

Lin Tian randomly found an excuse to excuse her.

"What's there to see? A lot of fresh cow dung was just put into the field. It's very dirty. Don't come here."

This was used to deceive Zi Bingbing, a person who didn't know how to farm, that fresh cow dung was not a good fertilizer and had to be fermented or dried to be useful.
Chapter completed!