After verifying that the boulder was not an illusion, Cang Ye looked at Chu Jingtian with a wry smile.

And looking at the wall-like boulder, Chu Jingtian's brows couldn't help frowning.

He recognized that the material of the boulder was a stone called diamond.

This stone has only one property, and that is hardness. According to his understanding, its hardness even exceeds that of some metals.

And the thickness of this boulder wall is fully five meters, and with the current strength of the three of them, it is not so easy to penetrate this stone comparable to gold and iron.

"Attack at one point? Or what should I do?" Cang Ye asked a little anxiously when he saw that Chu Jingtian was slow to speak.

"Attacks definitely won't work. Chu shook his head, "The hardness of this stone is amazing, with our strength, we can't open it at all." ”

"I'll try. Hearing this, Cang Ye walked to the boulder wall with some disbelief, and then the long sword in his hand shook, and an extremely sharp sword aura came out of his hand.

"Snort...... Boom!"

In the explosion, the flames splashed everywhere, and when Cangye's sword qi hit the boulder, it exploded directly.

Where the boulder wall was hit, all that was splattered was some broken stone chips, leaving a hole less than the size of a fist.

Seeing this scene, a deep look of shock flashed in Cang Ye's eyes.

If it were replaced by an ordinary stone, if he struck down, there would be at least a large pit on the stone wall that was one or two meters wide and half a meter deep, but now, there was only a small pit the size of a fist on the stone wall, which showed how amazing the hardness of this stone was.

According to this progress, they wanted to blast out a hole in this stone wall that was enough for one person to drill through, so they didn't have to think about it without three or five days of effort, so he was convinced of Chu Jingtian's words.

"Then do you have any good ideas?" Seeing the effect of Cang Ye's blow, Yemo's brows couldn't help but wrinkle.

"That's it!" Chu Jingtian pondered for a moment, then took out the quenching pill that Elder Lu had given him before, handed it to Ye Mo, and said to the two: "Six pills, three for each of you, just take advantage of this time to take this quenching pill first, I'll try to see if I can unlock this mechanism." ”

"The two of us are divided, what about you?" Ye Mo asked with some confusion as he took the elixir.

"This elixir is useless to me. Chu Jingtian shook his head slightly, and then motioned for the two of them to take the pill, while he himself walked towards the boulder wall.

Looking at Chu Jingtian's movements, Ye Mo and Cang Ye didn't say anything more, since Chu Jingtian said so, it was really useless to him, in this regard, Chu Jingtian would not lie to them.

Then, the two of them sat cross-legged on the spot, took the pill, and began to exercise.

Chu Jingtian, on the other hand, stopped in front of the boulder wall, carefully examining every place where the boulder came into contact with the passage, trying to find some clues.

Since this mechanism can be triggered, then there must be a way to be withdrawn, otherwise this mechanism will become a one-off.

Although this mechanism looks simple, the diamond used to make this boulder is not easy to find, so it is not easy to make this mechanism, so he concluded that this is definitely not a one-time mechanism.

Chu Tiantian's gaze swept almost inch by inch over the boulder wall and the places where the passage was linked, and even kept touching it with his hands, but Rao was like this, until he had finished observing, he couldn't find any clues.

Could it be true that he could only attack again and again until a gap was made? Chu Jingtian's heart couldn't help but feel a little anxious.

If that is the case, then their time advantage of entering the third layer in advance will be gone, and the boulder they have opened up will also become a passage for future generations.

In other words, if they relied on breaking through this stone wall to break through this mechanism, they were completely using their own time to make wedding dresses for others, which Chu Jingtian would never want.

"Hoo ......"

Exhaling deeply and calming himself down slowly, Chu Jingtian took a few steps back, and after a little distance away from the boulder wall, he also sat cross-legged on the ground.

But all the while, his eyes were locked on the boulder, wanting to find something.

However, after looking at it like this for more than half an hour, his eyes felt sour, and he still couldn't find any clues.

Somewhat helplessly retracting his gaze, Chu Jingtian raised his hand and rubbed his eyes, and then turned to look behind him.

The original intention of turning around was to see how Ye Mo and Cang Ye were doing with the pills, but the moment he turned around, his eyes suddenly lit up.

At the same time as seeing Yemo and Cang Ye, he also saw the passage behind the two, where they had just come from.

But because they were advancing in an illusion when they came, the passage at this time was slightly different from what he saw when he came.

So at this moment, he suddenly thought of a possibility - the switch that controlled the boulder mechanism would not be in the passage they had already walked.

Thinking of this possibility, Chu Jingtian's mood immediately became excited, because at present, only this possibility can explain why he couldn't find the switch near here.

It is impossible for a mechanism to be without a control switch, so the more he thinks about it, the more he thinks that this may be very big.

Immediately, Chu Jingtian took a direct step and walked back towards the passage they had already walked.

He walked very slowly, moving only once when his steps were half-loud, and his eyes were constantly patrolling around the passage, for fear of missing a little detail.

In this way, Chu Jingtian walked back little by little.

An hour later, Chu Jingtian's footsteps stopped, and then, a faint smile finally appeared on the corner of his mouth.

At the junction of the ground and the stone wall in front of him, he saw a blue brick that was slightly different from the surrounding area, which should be the switch of the boulder mechanism.

At this time, he was only fifty meters away from the boulder wall. For a whole hour, he only advanced fifty meters, which shows how difficult the work of finding the switch is.

However, out of an abundance of caution, he did not immediately flip the switch. Yemo and Cangye's quenching is not over yet, he has to wait for the two of them to finish before pressing, otherwise if something happens, the two of them will not have time to react.

And this waiting time, Chu Jingtian simply used it to close his eyes and recuperate, more than an hour of careful observation, it was really not a comfortable thing for his eyes, and he just took this opportunity to rest his eyes.

I just waited another half hour.

Just when Chu Jingtian felt that his eyes were resting well, Yemo and Cang Ye, who were taking the pill to quench their bodies, both woke up, and then stood up.

At this time, although the cultivation of the two has not changed, they seem to have more energy on their bodies, and they seem to be more energetic than before.

This is the effect of quenching the body, although it cannot improve cultivation, but it makes the body stronger and makes people more refined.

After the two of them got up, they didn't see Chu Jingtian, and after they subconsciously turned around, they saw Chu Jingtian behind them, nearly fifty meters away from them.

Immediately, both of them couldn't help but show some strange looks, and they couldn't figure out why Chu was running there.

"Come here!" Seeing the two wake up, Chu Jingtian smiled at the two and stood up.

"Found the switch?" Yemo's eyes lit up, and a possibility suddenly came to mind......

Cang Ye on the side showed a hint of surprise, looking at Chu Jingtian with anticipation.

"Found one, but I don't know if it's or not. Chu Jingtian nodded and said, "You guys come closer, I'll give it a try." Be prepared to avoid accidents. ”

"Good. The two of them nodded, and then stopped three meters away from Chu Jingtian.

And Chu Jingtian, after seeing the two of them standing still, directly slapped the blue brick that might be a mechanism.

"Smack!"

The palm of the hand fell on the green brick, making a crisp sound, and the green brick was directly concave inward under the effect of the power of Chu Jingtian's palm.

Chu Jingtian's expression was overjoyed, but in his heart, he was ready to dodge at any time.

Yemo and Cangye also had a wary look on their faces, ready to deal with it at any time.

However, this result did not disappoint the trio.

At the same time as Chu Jingtian's palm slapped on the blue brick, fifty meters away, the boulder wall suddenly made a sound of stone walls rubbing against each other.

Then, the three of them saw that the boulder, which was five meters thick and more than ten meters wide, blocking the passage like a wall, was slowly rising.

Seeing this scene, Chu Jingtian breathed a deep sigh of relief, and then the three of them looked at each other and smiled.

After a few moments, the boulder was completely withdrawn from the top of the passage, and from the place where they stood, there was no sign of it.

Except for the stone chips on the ground that had been shattered by the canopy, there was nothing to prove that the boulder existed.

Such a tricky skill really shocked the three of them.

Immediately, the three of them stepped forward and continued to walk towards the depths of the passage.

However, just as the three of them walked to the location where the boulder fell, Chu Jingtian suddenly pulled up Cang Ye and Ye Mo, and then rushed out in an instant.

He didn't know if the boulder would fall again after passing by this time, so it was better to be careful.

"Huh!"

In a flash, three figures appeared more than ten meters in front of them.

But when I looked back, the boulder did not fall again.

"This is just the beginning of the passage, this mechanism is so troublesome, and the road behind it will be even more difficult. Cang Ye said with some emotion.

"So, we have to be a little more careful. Yemo also nodded in agreement.

And Chu Jingtian smiled slightly, pointed to the two portals in the passage in front of him and said, "Those are all later, now, let's take a look at what's in this room first!"

"See if it's a danger or a treasure......