Han Xi looked around with a flashlight, looked left and right, it was really a dead end with no way out.

"Have we walked through?" Han Xi patted the thick stone wall and turned around and asked.

Lin Feng shook his head: "No, according to the map, the top of our heads is now five hundred meters southeast of the artificial lake, and there is still a distance of seventy or eighty meters from the library." ”

Han Xixiu frowned slightly: "That's weird, Niu Jianguo said before that the underground caves are all through, and there is no dead end......"

Lin Feng looked around and stayed in the stream on the east side for a moment: "Do you want to wade through the water?" ”

Han Xi hurriedly waved his hand: "Don't make trouble, don't make trouble, the water can flow through the stone wall, but we can't flow through."

Lin Feng picked up a stone and threw it down.

Knock –

A dull sound sounded.

"Don't look at this stream, it's not wide, but it's very deep, at least three or four meters, and there must be a lot of space underneath to pass through this stone wall."

After observation, Lin Feng said.

Han Xi was a little worried: "If I knew I was going to swim, I would have brought a diving suit and an oxygen tank, we don't have any equipment, how can we get into the water?" ”

Lin Feng smiled: "You are also a cultivator, you can't hold your breath?" ”

Han Xi said: "Yes, yes, at most, it will only be five or six minutes, and no matter how long it is, it will not work." ”

"Well, I'll go into the water first, and I'll come and pick you up when I find out." Lin Feng proposed.

Han Xi categorically refused: "No, no, no, I want to go together, leave me, a young and invincible beautiful girl, in this dark cave, you can rest assured?" ”

Lin Feng said: "What's not to worry about, there are no demons and monsters in the cave, even if there is, with your Second Miss Han Er's ability, kill seven and kill eight, then it's still a problem?" ”

Han Xi pouted: "Don't be weird with me, anyway, I won't leave you an inch, don't want to get rid of me and do it alone!" ”

There was no way, Lin Feng could only agree to take her.

After a brief cleanup, the two of them each took a deep breath, and then plunged into the stream.

The stream was so cold and bitterly cold that Han Xi was so excited that a string of blisters bubbled out of her gurgling, so frightened that she quickly covered her mouth.

Lin Feng was in front and Han Xi was behind, and the two of them used their hands and feet together, slowly moving forward in the water.

Whoa-whoa-whoa

Two waterproof flashlights constantly swept the surroundings, trying to find some clues, and then, the stone wall was bare, and there were no clues.

Lin Feng touched the cold and piercing stone wall, and suddenly felt a little curious, the stone wall was angular, not like a natural formation, and seemed to have traces of artificial carving.

Could it be that this creek was built by man?

It's strange, who would build such a canal in this dark cave?

What's the use of repairing it?

At this time, Han Xi tugged Lin Feng's arm and pointed to his mouth again, obviously wanting to say that she was not angry enough, and she would have to suffocate if she swam any longer.

Diving is no joke, you can drown if you are not careful, not to mention that you are still in the underground river where you can't see your fingers.

As the beam swayed, the two of them swung quickly in the water like Pisces.

Gollum –

Another string of bubbles.

Han Xi obviously couldn't support it, his face turned red, his chest was suffocated, and his body gradually lost strength.

Lin Feng didn't dare to slack off, dragging Han Xi's arm while speeding up and swimming forward.

The rock wall in front of you narrowed suddenly, and the water gradually eased.

Lin Feng was overjoyed in his heart, it seemed that it was coming to an end soon.

When I lit it up, I saw the light and shadow on the water swaying.

Lin Feng sped up his body, swam quickly, and suddenly rushed out of the water in the form of a carp jumping over the dragon gate, jumping towards the shore.

Whoop -

I saw the waves rolling and the water splashing in all directions.

The two were already standing on the shore.

"Ahem, cough, cough......" Han Xi choked on a few mouthfuls of water and kept coughing.

"Are you alright?" Lin Feng patted his back and asked.

Han Xi pushed him away and said angrily, "It's all your fault!" I said that I would take the submersible and go into the water tomorrow, but you didn't listen, and almost choked Miss Ben to death in the water! ”

Lin Feng said: "How good it is to wait outside, why do you have to come down and suffer this crime?" ”

Han Xi snorted coldly: "After checking back and forth for so many days, I finally have to find the source of the aura, if I don't take a look in person, I won't be willing to die!" ”

"Phew! Miss Ben is born beautiful, and she will definitely live a long life, so I won't die! ”

Lin Feng smiled: "Since you have come down, you must be prepared to endure hardships, how can you get the fragrance of plum blossoms without going through a cold bone?" ”

Han Xi stomped his feet: "Okay, okay, I understand the truth, I don't need you to teach me a lesson!" ”

"What should I do now, I'm soaking wet all over, hiss, I'm about to die of cold!"

Han Xi was already dressed sexy and hot, but at the moment, his body was soaked with water, his clothes were all attached to his body, and the outline of his chest and the appearance of his buttocks were almost revealed.

Especially the beautiful legs wrapped in black silk, at this moment, they shine with a trace of luster under the reflection of the light, which makes people excited.

If it were an ordinary person, this situation would definitely be unbearable.

But Lin Feng is different.

He practiced!

"Give me your hand." Lin Feng said softly.

"Why are you trying to take advantage of me?" Han Xi asked.

"What so much nonsense?" Lin Feng grabbed her wrist and secretly exercised.

"You put ......" Before he finished speaking, Han Xi felt a warm stream of heat slowly injected into his body, swimming all over his body, dispelling all the cold in his body.

Streams of heat rose, and even the clothes on his body were gradually dried.

Five minutes later, Lin Feng let go.

"Wow!" Han Xi patted the dry loose clothes and was pleasantly surprised, "What kind of exercise are you, it's the same as a dryer, it's too convenient!" ”

"It's not cold now, is it?" Lin Feng asked.

"It's not cold, I'm even a little hot!" Han Xi said with a smile.

Lin Feng used a flashlight to shine around, just like the outside, it was also a naturally formed cave, but the scale was much smaller than the outside, only the size of a basketball court.

"Looks like this is under the library." Lin Feng compared the compass with the map and said.

Han Xi looked here and there, a little suspicious: "There is nothing new in this place, where did the aura come from?" ”

Lin Feng took a deep breath, exerted his divine sense, and thoroughly scanned the cave.

"The aura here is dozens of times thicker than outside, so it can be seen that the source is inside the cave."

Han Xi was even more puzzled: "But the things here are at a glance, except for the stone or the stone, where is the source?" ”

Lin Feng turned to the northwest corner and pointed to the moss-covered stone wall: "It's right there." ”

Han Xi was stunned: "What do you mean?" Isn't that a stone? ”

Lin Feng smiled indifferently: "There are stones on the outside, but there is a cave inside!" ”

As he spoke, he stepped forward and patted the stone wall, making a sonorous and muffled sound.

Han Xi seemed to have an understanding: "It's hollow inside?" ”

"Oh, it's too bad, I knew I was going to chisel stones, so I brought the wind drill!"