Seeing that Yuan Li was really angry, the old man and the little sin looked at each other, didn't dare to talk more, and began to look for a vent, and the little sin asked the old man: "Can you narrow down a little more? It's a long distance here, it's very difficult to find." [Ran^Text^Library] []”

The old man reminded in a low voice: "You still have so much nonsense, you ask me who I ask, find it yourself, anyway, you have a smart nose, just look for it slowly." ”

Xiao Xian showed a sad expression, now this place is full of all kinds of smells, if you want to find the vent to smell when you have to?But there is no other way, but there is no other way but to go along the stone wall, if what the old man said is true, it should be able to hit the vent.

Xiao Sin leaned against the wall and slowly advanced, perhaps the bottom of the river was spacious enough, and all the air currents converged here, making this river like a river of breath, where all kinds of mixed breaths converged and surged, no wonder Xiao Sin didn't feel special at first, it seemed that it was caused by too much breath.

However, the speed of the air flow here is too fast, and it is difficult for Xiao Sin to capture the direction of the air flow, and he can only feel it when he gets closer, and he has been moving forward like this, but there is still no clue.

Xiao Sin felt that something was wrong, he might have been deceived by the air flow here, it was not unseen such a situation, so he asked the old man Scissors: "Old man Shear, if there are really facilities in this, then how will the vents be built?"

The old man replied: "How else can it be built, it is naturally a passage with a bunker, and then by using air pressure to make it difficult for people to detect, so that it can be concealed and ensure that the air flow is not blocked, do you understand?"

The little sin continued to walk forward and replied, "I don't understand. ”

Xiao Sin has been engaged in the cultivation of all kinds of breath perception, how can he understand these techniques of mechanism and architecture, so he has to continue to move forward, and the only thing that Old Man Shear has helped him is to learn that the vent has a cover, no wonder he has never found the vent.

With this hint, it was naturally much easier to find, and Xiao Sin thought that he must have missed some vents, but he didn't know what they were like, but since there were vents, there would definitely be something different in the feeling.

Xiao Sin slowly pondered, and gradually had some clues, the air flow in the river has always flowed in one direction, so the vent must be in a place where it is easier to circulate, such as a corner.

Xiao Sin seemed to have found his target and began to run along the air current, trying to blend into the air flow and find the direction to enter the interior, but Yuan Li and the old man Jian Xiao ran suddenly, thinking that he had found a vent, and immediately followed.

Although the air flow is in one direction in the river, but it is mixed with all kinds of breath, naturally they do not blend together, and it becomes a mess, making the work of the little sin more difficult, but this is not difficult to the natural talent of the little sinner, the little sin ran along the air flow for a long time, because he devoted himself to the air flow, so he did not pay attention to the surroundings, and he directly hit a stone wall without paying attention, and suddenly knocked himself away.

Yuan Li hurriedly ran forward, helped the drowsy little sin up, and asked, "Little sinner, are you okay, what are you doing? ”

Xiao Xian heard Yuan Li speak, but the impact just now was too heavy, and he couldn't slow down for a while, so he couldn't answer Yuan Li's words, and what he wanted to say most at this time was that he had found a vent.

Although Xiao Sin is now on the side, the old man almost guessed something, walked to the location of the wall that Xiao Sin hit, and carefully examined it, and felt that this was probably the vent.

As a result, just as the old man thought of it, he immediately said to Yuan Li: "Lord, come and see here, this is the vent we are looking for." ”

Yuan Li helped Xiao Sin to walk towards the position of the old man, and the old man immediately pulled a shutter with the same structure as the stone wall, and there were several passages inside, and the old man said: "These passages are intricately leading to different directions, and the air flow will be separated as soon as it arrives, and the wind force formed will cancel each other, so there is no feeling from the outside, but let's wait for the little sin to wake up before going down, and the wind will become huge after going in, and it is possible to find no one if you are separated." ”

Yuan Li looked inside the vent, and felt very normal when he was outside, there was nothing peculiar, but as soon as he stretched his head inside to look, he felt a strong wind blowing, and he was almost taken inside, and this strong wind mixed with the breath Yuan Li also knew that this was the taste of aura, and it seemed that this was the principle of using air flow to cool down.

After waiting for a while, Xiao Sin finally came to his senses, and said with some self-deprecation: "Oh my God, I actually hit the wall by myself, and almost killed me, I was really killed by this vent." ”

The old man said mockingly: "You deserve it, you really rely on your nose to find your way, you don't need your eyes, it's better if you are blind." ”

Seeing that the old man and the little sin started chatting again, Yuan Li interjected and said, "Since you have woken up, then let's go down quickly, do you know that the road inside leads to the fragments of the green rays?"

Of course, the old man didn't know this, and before he could reply, Xiao Sin preemptively said: "It's not difficult to find, judging from the breath here, all the energy supply in the city relies on immortal qi to run, so the Qingyu fragment should be the core of this place, and it should be in the hottest place here, as long as you follow the pipe, you will definitely be able to find it." ”

Yuan Li understood what Xiao Sin said, so he asked Old Man Jian again, "Can you deduce which fellow path leads to the core?"

The old man replied affirmatively: "Among all the mechanisms, the heat emitted by the core is the highest, and it may even exceed the sum of the heat emitted by the other parts, so there will be a large number of channels connected to the core, and the more tortuous the lines, so that the air convection can be generated, and the cooling effect can be achieved, and we only need to pick the most tortuous channel to reach it." ”

Yuan Li pointed to the vent and said, "In that case, why don't you lead the way?" I think it would be much more effective for you to lead the way than for us to explore." ”

Without hesitation, the old man stepped into the vent and said, "That's natural, you follow me closely, the speed inside is very fast, if it is slow, everyone may have to disperse." ”

When everyone was ready, the old man jumped into the vent, and Yuan Li and Xiao Xian followed closely, not daring to be too far away.

I have to say that there are too many passages in this, it is like an underground labyrinth, there are connected passages everywhere, Yuan Li really can't understand how long the master here has to build these passages, and it is completely incomprehensible to ordinary people.

But the old man seemed to be like a fish in water, sliding quickly with the air flow in the intricate passage, and it didn't take long for him to fly out of the passage and appear in a wide cavern that was brighter than the outside world, and it seemed that this was it.

But there is still a troublesome thing, the three of them are now in the air, at least not more than a hundred feet from the ground, Yuan Li looked down, only to see that there are huge wires and a large number of mechanisms and facilities below, and the most important thing to do now is to land safely.

But before Yuan Li and the others could start to act, the defenders here discovered them and launched an attack on them.

Yuan Li only felt that in this place full of aura, there were suddenly several shockwaves without the slightest breath hitting him, if it was not necessarily found in the outside world, but it was extremely conspicuous here.

Yuan Li and the three of them couldn't dodge at will in the air, so Yuan Li immediately resorted to six duels, and a circle with the word Shura appeared in the air, blocking all the rushing shock waves, and bounced the shock waves back.

Seeing that he had already dodged an attack, the old man immediately said: "Let's hurry down, it's just a target in the air, and we don't even know where the enemy is." ”

Xiao Sin had no sense of crisis at all, and said with a smile: "Don't worry, who knows if there is an enemy guarding under your feet, it's better to float to the corner first and then go down." ”

Yuan Li shouted angrily at this time: "Don't make any noise, just go down, no matter what you encounter, if there is any way in the way, solve it, and leave when you get the Qingyu fragments." ”

This decision cut the old man very hidden, and then said: "If you can take a few prisoners, you can take a few prisoners, just enough for me to study." ”