As luck would have it, the two of them were hanging halfway up the mountain at that moment.
As the saying goes, the higher you stand, the farther you can see.
Now, the two people's vision is no longer blocked by trees and weeds, and they can see everything around them clearly.
Tian Kai observed his surroundings carefully, not missing a single detail.
Zhang Sinian also stopped and followed him to conduct a careful investigation.
This is the direction of the sun, and at noon, the sun is very abundant.
Although the mountain is rocky, there are still many trees growing in the soil between the rocks, like indestructible cockroaches.
For example, the two people saw pine trees and cypresses, as well as some green plants that they did not recognize.
The entire mountain is basically covered with trees and vines.
It seems that there is no difference!
The boss feels like something went wrong?
He secretly complained in his heart.
Just as he was about to open his mouth to complain that there was no difference at all, his gaze downwards paused.
"Old old boss!"
His voice suddenly became stuttering.
"I found it, look there!"
As he spoke, he pointed his trembling finger down the mountain.
"Don't get excited, hold on to the rope!"
Zhang Sinian was really scared. This guy got excited and let go of his hand, and the person fell down.
I quickly warned him and looked in the direction he pointed.
Sure enough, the wall below the cliff over there is not much different from other places.
Above, there were only some sparse vines covering the entire wall.
If you don't look carefully, you won't be able to find it at all.
It's the same mountain, with basically the same water and soil.
Only in that place, there were no trees that grew any bigger, only vines.
Needless to say, there is definitely a problem.
That’s what he said, he always felt something was wrong, isn’t it!
"Come on, let's get closer and take a look!"
Now that he had discovered the differences, Zhang Sinian decided to take a closer look.
With a target in mind, the two men sped up and retreated downwards.
This time, both of them were in a good mood and they went down the mountain much faster.
In just a moment, the two retreated down the mountain.
Looking at this cliff from a distance, it just feels a little different.
Looking closer, the two discovered that it was not just different, but very strange.
The other side of the cliff is full of potholes and has many uneven and protruding large rocks.
Looking carefully at the cliff wall here, the two people found that it was much flatter in comparison.
However, without careful comparison and exploration, they were both deceived.
Who would have thought that a few ordinary cliffs could have such huge differences.
After the two men stood firmly, Zhang Sinian packed up the things and tools in his hands.
As the distance got closer, he pushed aside the vines and looked at the stone wall.
The color of the wall is no different from that of the cliff. After being exposed to wind and sun, they have long since merged into one.
In the damp area beneath the vines, many moldy little green plants grew.
As for his name, Zhang Sinian didn't know.
The two men separated consciously and started working on the wall.
Inch by inch, leaving nothing behind, the two of them groped their way forward bit by bit.
When the survey was about 40%, Tian Kai on the side exclaimed.
"Boss, look!"
He squatted in front of the stone wall, grabbing the base of the wall with both hands.
He kicked up a large pile of fallen leaves and weeds on the ground.
He was completely unaware.
Because he was too excited, he threw aside the stick he had just found.
Zhang Sinian did not dare to delay. He put down the vine in his hand, walked forward and took a closer look.
On the blue-gray cliff wall, near the base of the wall, a concave shape similar to a keyhole was revealed.
"key!"
The two looked at each other and exclaimed in unison.
Zhang Sinian put down the wooden stick in his hand and quickly reached into his pocket.
Inside was a copper key that he had found in the hands of a bad guy in the cave a few days ago.
Regardless of whether it is true or not, the first reaction in both people's minds is to give it a try.
That group of people hid the key so secretly, it must be of great use to them.
Moreover, it was placed together with the map at that time.
If nothing unexpected happens, it should be the key above.
Because apart from this, they couldn't think of any other reason.
Zhang Sinian moved quickly and took out the copper key in less than a minute.
The moment the key was taken out, the eyes of the two people brightened.
Because now it looks more like a set with the above.
Without thinking too much, Zhang Sinian grabbed the key and inserted it into the keyhole below.
Although the stone cliff has been there for a long time, there is nothing underneath except piles of leaves and weeds.
After putting all this mess aside, the keyhole became clearly visible.
Zhang Sinian inserted the key smoothly.
According to the normal unlocking direction, turn it to the right.
“Crack!”
With a crisp sound, the key began to turn.
The surprise in the eyes of the two people who heard the sound became even more obvious.
Is this a success?
Before the two of them could think too much, huge changes occurred on the entire wall of the cliff.
Amidst a deafening roar, the entire wall slowly opened.
This scene scared Zhang Sinian and Tian Kai, who were standing in front of the stone wall.
Zhang Sinian quickly pulled out the copper key in his hand and stepped back with Tian Kai.
Maybe because it is very old, the stone door opens slowly and choppy.
After more than ten minutes, the rumbling sound gradually stopped.
And the stone door was completely opened.
At first glance, there is a passage inside that can accommodate four or five people at the same time.
There is sunlight at the door, so you can see clearly, but deep inside, it is a bit blurry.
Two people stood at the stone gate and fanned the air in front of them.
A damp earthy smell burst out from the cave, choking the two people and making them feel a little uncomfortable.
After waiting for a while, the smell in the cave had almost dissipated.
Zhang Sinian took out the flashlight he carried with him and gave some instructions to Tian Kai who was standing beside him.
"Get ready, let's go in and take a look!"
He said as he cleaned himself up.
Then, he picked up a wooden stick that was thrown on the ground.
"Okay, boss!"
Now that he had a clue, Tian Kai felt much more relaxed and his voice became much lighter.
The truth is, I've been climbing mountains to look for things recently, and I'm tired of searching.
Because of this incident, both of them are about to become mountain guardians.
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