"That's right." Wang Yi responded.

Immediately, he put down the backpack, took out a few nylon ropes from it, and then took out a few from Du Deming and Zhang Qiang's backpacks, and finally tied all the ropes together with special knots.

"This rope should add up to tens of nearly 100 meters." Wang Yi tugged at the rope and made sure that it was tough enough before he said to himself with satisfaction.

He then took off his jacket and tied one end of the rope around his waist and handed the other end of the rope to me.

I took the rope and looked at Wang Yi: "You be careful, if there is danger, shout immediately, and we will pull you up." ”

While speaking, Du Deming, Zhang Qiang, Zhao Qiqi, and Sami also came over, and they all took the initiative to grab a part of the rope to ensure Wang Yi's safety.

"Rest assured. I'll go down first! ”

Wang Yi nodded, turned on the light on the survival bracelet, leaned over and probed, and then cautiously jumped into the hole.

Plop.

The sound of splashing water sounded.

I swallowed subconsciously, and my fingers gripping the rope tightened.

Turning to look at the others: "The rope is tight!" This is related to Wang Yi's life. ”

"Of course. You can rest assured! Du Deming immediately returned.

One-minute, two-minute, three-minute......

The ropes that had been piled up on the ground moved little by little into the hole, and finally became tight.

It seems that Wang Yi should have gone far away.

Five minutes passed.

There was no movement at all.

Finally, Zhang Qiang couldn't hold his breath anymore.

"It's been so long, why hasn't Wang Yi come back? It won't be ...... What's wrong? ”

"Yes! It's been a few minutes, so what now? Du Deming also showed a worried look.

My throat moved, and I finally couldn't help but shout towards the hole: "Wang Yi! Wang Yi! Are you okay? I heard the answer! ”

Seconds passed, and there was still no movement below.

"Hey, something doesn't feel right! Why don't you go down and have a look! Seeing this, Zhang Qiang said a little anxiously.

I heard this and nodded: "It's okay." You go down and see what is going on with Wang Yi. ”

Zhang Qiang bowed slightly, he let go of the hand holding the rope, and was about to take off his clothes.

However, the rope suddenly began to shake violently.

Then, we heard Wang Yi's voice.

"Gao Wei, Qiangzi, do you hear? Pull me up! ”

My eyes lit up: "It's Wang Yi!" ”

Everyone looked happy.

didn't say much, everyone worked together, but in a few seconds, Wang Yi was quickly pulled up from the dark river.

Looking at Wang Yi, who was sitting on the ground, dripping with water, I exhaled slightly.

"Why have you been here for so long, I haven't heard anything from you just now, we thought something happened to you." As I spoke, I took out a towel from my bag and handed it to Wang Yi.

Wang Yi took the towel, wiped the water on his face briefly, and sighed: "I'm sorry, I probed too far just now and forgot to contact you for a while." However, you guessed correctly with Qiqi, there is indeed a problem below. ”

"How?" I asked, suppressing some excitement.

"When I got to the bottom, I swam forward for about five or six meters, and then I found a cave in the riverbed with a diameter of more than two meters, and the turbulent water below flowed into the cave in addition to part of it continuing to flow forward. Something like a whirlpool appeared near the cave, and I was a little curious, so I swam down the cave. Wang Yi frowned and said.

"I'll go, you kid is too bold, aren't you afraid of any danger?" Zhang Qiang was dumbfounded.

"Maybe I used to it when I was a special soldier, so it's okay. Hey, that's not the point. The point is, I followed the vortex downstream, and it seemed to be a passageway, and the passage seemed to lead somewhere. Wang Yi said, his brows gradually furrowed: "But unfortunately, because of the limited length of the rope, I had to stop after swimming a certain distance, so I don't know where this passage leads......"

"According to you, Gao Wei's guess may really be right. Could that underwater passage lead to the Desert of Resentment? When Du Deming heard this, he said with some excitement.

"But what if not? What if there is any danger? I think you should be careful! Sammy looked at us, but said so.

"That's right. But even if we connect all our ropes, we may not be able to reach the end! As I spoke, my heart couldn't help but feel heavy.

"And...... There is also a practical question. Zhao Qiqi touched his chin: "In our team, there are also some people who are not so good in water, if this passage is too long, we may not swim to the end, and we will already die in the water due to lack of oxygen." ”

"Definitely. Both of these things are a bit tricky! I muttered, lost in thought.

At this moment, Situ Cao, who had not spoken, suddenly stepped forward.

"That...... Maybe I have a way, I don't know if it will work. Situ Cao glanced at us cautiously and said with some uncertainty.

"What's the solution?"

Everyone was stunned for a moment, and then moved their eyes to her.

Seeing this, Situ Cao clenched his trouser leg a little crampedly: "I, I'm thinking, since people can't go to such a long distance, can they use my eyes." Although I haven't tried to make it go farther, I think I can give it a try. If it succeeds, we can go directly here and find out what is going on. ”

"That's right! With your Eye Gu Technique, Situ really has yours!! My eyes widened with sudden realization, and I said with some excitement.

Situ Cao smiled, and then said, "In addition, regarding the problem of lack of oxygen under the water, I think I can help you solve it." ”

Wang Yi suddenly looked at her with some curiosity: "What do you say?" ”

"I once saw a kind of acupuncture method in our ancient books, its name is - turtle breath acupuncture, which roughly means that you can use silver needles to block some relevant acupoints of the body in a short period of time, reduce the breathing rate to the minimum, so as to reduce the need for oxygen for a period of time. You know that turtles can survive for a long time in an oxygen-thin environment, and that's how they breathe. Therefore, this kind of acupuncture method is called turtle breath acupuncture. However, according to the book, this needle method can be used for up to one hour, that is, two hours, if the silver needle is not pulled out in time after two hours, then the person will really die due to lack of oxygen. Also, although I know how to administer needles, I have never tried ......"

My eyes moved, and I made a decision on the spot.

Turning his head, he looked at Situ Cao with a serious expression: "It's okay, we believe in your medical skills." Since you can't think of any other way, do what you say! ”