The knocking sound was extremely obvious, especially when it sounded in the extremely quiet passage.
Both of their movements stopped at the same time, and at the same time they looked at the rock wall on the other side where the sound of knocking came from.
"I seemed to hear a sound..."
Yun Shang asked very uncertainly.
She thought she had some kind of hallucination caused by being in a closed environment for a long time.
"Seems to be."
Shen Yao was unsure, fearing that it was coming from underground volcanic activity.
After the words fell, the voice became clearer.
"You heard it right. There was indeed a sound. It felt like someone was banging something. I'll go over and have a look."
A flash of light burst out from Shen Yao's eyes. He immediately stood up and crossed over from the underground river, landing in front of the opposite rock wall. He almost pressed his ears against the cold rock and listened carefully.
Bang bang——
There was a continuous knocking sound, which sounded like someone was digging something. It was obviously man-made and not a natural sound.
"Maybe we can be saved. Since we can hear the sound, there may be a way to the outside behind this rock wall. Maybe we can dig through it and reach the outside."
Shen Yao immediately took out the dagger and tapped the handle of the dagger against the rock wall.
He also used his strength to make the sound spread farther and become clearer.
When he knocked on the rock wall, the knocking sound there disappeared and became quiet. It seemed that the other party did not expect that there would still be sounds.
Then Shen Yao continued to tap and used Morse code: Help, we are trapped inside. If we are rescued, there will be a generous reward.
He didn't know if the other party could understand him, so he had to give it a try.
At the same time, I also hope that the other party will be curious enough to dig out this rock wall, otherwise, he will have to do it by himself, but he is not very sure.
Although with his current strength, he could stab into the rock wall with his bare hands, the efficiency was too low, and it would also consume a lot of money. He didn't know how thick the rock wall was.
After waiting for a while, when Shen Yao was about to tap the Morse code for the second time, there was another rhythmic tapping sound from the rock wall.
Shen Yao's fingers also tapped along with the rhythm, and he immediately translated: Who are you? What is over there? How come you are trapped in the heart of the mountain.
Upon hearing this, Shen Yao immediately realized that their location should be inside the mountain, not directly outside behind the rock wall as he imagined.
Most of those people are located in the heart of the mountain.
"I am a treasure hunter. After entering the mountains, I found a cave. I lost my way and could not find a way out. As long as you are willing to save me, I will definitely thank you profusely when I come out."
Shen Yao responded immediately.
"Treasure hunt? What treasure? Is there gold?"
The other party continues to respond.
After hearing this, Shen Yao also became suspicious. Could it be that those people who were separated by a rock wall came here to dig for gold?
However, he didn't know much about the situation near Cangshan Town, and he didn't know much about whether there were mines nearby.
"How do you know? It's no use having gold now. You can't get out."
Shen Yao responded.
"Hold on."
After the other party tapped in response, the other party fell into a state of silence.
"Shen Yao...what's wrong? Who is that person over there?"
Seeing that the knocking sound disappeared, Yun Shang also asked hurriedly.
Although she is in very good spirits now, and the daily ventilation has made her almost completely back to normal. There is food and water here, so there is no need to worry about survival, but if she can go out, she is willing to be trapped here forever!
"I guess it's a treasure digger, either someone who secretly digs for rare ores, or someone who robs tombs..."
Shen Yao thought for a while and said.
However, he felt that it was more likely that there was someone digging for gold on the other side of the rock wall, because the tapping sound sounded like he was digging into the rock wall, and when the person asked him, he asked if there was gold.
This already explains some problems.
It can also be seen that those people are very anxious. Maybe they have been digging for a long time but have not harvested anything, otherwise they would not be so impatient.
He did not believe that a person who was proficient in Morse code could be an ordinary person.
Apart from being too anxious, there is no other reason why the other party would ask about gold.
Bang bang——
Just then, the knocking sound sounded again:
We can rescue you. First, let's make it clear that everything inside belongs to us. In addition, you have to pay us a rescue fee. Otherwise, don't blame us for being rude.
In addition, from the sound of your knocking, this rock is more than four meters thick and requires the use of explosives, so be careful.
"Thank you. I will do what I say."
Shen Yao responded immediately.
Bang bang——
Immediately afterwards, there was a clearer sound like digging into rocks, and Shen Yao hurriedly came to Yun Shang's side.
"They said they were going to use explosives. Be careful. We have to find a place first so we don't get blown up."
Shen Yao said something to Yun Shang, and then looked around, looking for this relatively safe place.
"Let's go over there. There is a huge rock layer on top of the passage there. Even if other places are stepped on, it should be able to support it."
He finally saw a suitable location and immediately pulled Yun Shang over.
After walking for a while, the knocking stopped.
Boom——
Five seconds later, a loud noise was heard. Even here, Shen Yao felt a violent vibration, as if there had been a burst, and gravel fell from many places in the passage.
In the underground river, there were even silver-moon fish jumping out of the river, looking panicked.
It took ten seconds for everything to return to normal.
Hua Hua Hua——
The sound of rocks colliding came from the other side of the stone wall, as if debris was being cleared.
"You hide for now, and then you come out after I control them. That group is definitely not simple. At least some of them are proficient in blasting. The control of that kind of explosives is not something ordinary people can do."
Shen Yao reminded Yun Shang.
As a member of the martial arts world, Yun Shang certainly knew who was doing that kind of thing, and she probably had someone on her hands, and with her appearance, there was no guarantee that she would do anything in a place like this.
Although the other party is their savior, for the sake of safety, they still have to control it first.
There was another sound of digging, followed by another booming sound of explosions.
After six consecutive attempts, there was a loud bang, and the rock wall on the side of the passage was exploded, and rock blocks burst out, creating a passage that made people afraid to go out.
You can still vaguely see the beam of light coming over you.
"Is anyone here?"
A voice mixed with a local accent came over.
"Yes, I'm still here. Thank you very much. I will thank you again soon."
Shen Yao assured again.
"Wait a minute, let's clean up the stone bumps here."
The man said something and began to move the stones hummingly.
"Friend, do you really have gold over there? Don't lie to us, otherwise the guns in our hands will not recognize people."
Another voice asked.
"I'm sorry, I shouldn't have lied to you. I do have gold here, but there is something more valuable than gold."
Shen Yao said apologetically.
"That's nonsense...I know people nowadays can't believe it. We dug for a long time and didn't even see a ghost. How can there be any gold? You just don't listen. Now we have wasted so much explosives... "
The man who asked about the gold couldn't help but cursed and began to complain about the people around him.