After confirming that this place was the fourth test site, Li Yao no longer coaxed Ling'er to play. He had no time counting and no windows. He didn't know how long it took, and even the only light source was the night pearl in Ling'er's hand.

"Ling'er, how long have I been sleeping?" Li Yao turned his head and asked Ling'er.

Ling'er thought about it, and even she was not sure, so she said, "It took a quarter of an hour after Ling'er woke up, Brother Yao woke up."

"So, I just don't know the specific time, and I don't know if anyone has left the secret room?" Li Yao murmured.

Although his mind is clear now, it still takes some time to think about the status quo. Since it is a secret room, there will definitely be clues to escape, otherwise this link would have deliberately made things difficult for others.

Thinking of this, Li Yao stood up and carefully checked around him, but found that the walls on all sides were all bare and had no mechanism at all. Looking at the roof and the ground, they were also very flat, and the surroundings were tightly fit, and even the gaps between the walls could not be found!

In desperation, Li Yao had to call out the fish in the guqin to send love.

Although Yu Chuanqing said that he would do his best to help Li Yao, since the first try, Yu Chuanqing has been hiding in the Chuanqing guqin and has not come out at all.

In fact, Li Yao didn't need Yu Chuanqing to help in the first three tests. But it's different now. If there were one more person, you might still find details that he didn't notice.

As soon as Yu Chuanqing came out, she stretched her waist, then showed a gentle smile to Li Yao and said, "Young Master, it's so early."

"Good morning." Li Yao looked at Yu Chuanqing blankly. When he realized, he quickly shook his head, then grabbed Yu Chuanqing's shoulder and said, "Brother Zhuanqing, I need you very much now!"

Yu Chuanqing did not look at Li Yao's face full of prayer, but looked around on his own and said with a slight silence: "Oh, escape from the secret room. I didn't expect that I would reach this point so soon. I remember that I had only slept for less than a day."

"You are confused when you sleep!" Li Yao's mouth twitched a few times.

Before Li Yao could say anything, Yu Chuanqing walked to the wall by himself and reached out to knock on the cold stone wall. Perhaps it was because of the lack of force and there was not much noise on the wall.

Yu Chuanqing looked back at Li Yao, as if asking Li Yao about the situation here. Li Yao also looked helpless. If he knew, how could Yu Chuanqing come out, but he shrugged helplessly.

Seeing this, Yu Chuanqing nodded knowingly, and as soon as he stretched out his hand, the ancient sword appeared on him and was injured. Yu Chuanqing raised his sword and slashed towards the wall. This move surprised Li Yao!

"So it can be used like this in ancient sword?"

However, when the ancient sword passed by the wall, only sparks flashed, leaving no trace on the wall.

Yu Chuanqing touched the place she had just cut, and said quietly: "This is the Vajra Obsidian of Black Night Mountain!"

"Vajra Obsidian?" Li Yao looked at Yu's love and asked hurriedly: "Is it a Vajra Obsidian that can be used to make swords?"

"Yeah." Yu Chuanqing nodded.

Li Yao, who was already in a state of surprise, was so shocked that his eyes were almost popping out! He sighed repeatedly: "This dragon gate is really a big deal! This diamond obsidian is a top-notch ore for sword-casting. Although it is not a top-notch, it is definitely considered a rare ore! The dragon gate actually uses this thing to cast a secret room!

”

Compared to Li Yao, Yu Chuanqing seemed much calmer. Looking at the white wall in front of him, he murmured: "If it were Vajra Obsidian, I would have no choice as a soul."

"Can't you pass through?" Li Yao looked at Yu Chuanqing again and asked depressedly.

Yu Chuanqing nodded calmly, "Not only can't pass through, but if he forcefully penetrates the wall, he may be sealed into the Vajra Obsidian and then decompose it by its absorbed spiritual power."

"This..." Li Yao was extremely depressed when he heard Yu Chuanqing say this. It seems that he cannot rely on Yu Chuanqing to take advantage of his chances, so he can only patiently go to the agency to get an exit.

When Li Yao and Yu finished talking, Ling'er walked to the wall made of Vajra Obsidian, stared blankly at the white and smooth wall in front of her, and murmured: "If it were Vajra Obsidian, it wouldn't be difficult to crack."

This sentence happened to reach the ears of the two people who were thinking hard about how to get out, and they all cast hopeful eyes at Ling'er! Li Yao was even more excited and asked, holding Ling'er's tender little hand:

"Ling'er knows how to get out?"

Ling'er turned her head and nodded to Li Yao with her usual innocent and cute smile. Her bright eyes also turned into crescent moons and said, "Brother Yao, don't worry, leave it to Ling'er."

As soon as he finished speaking, Li Yao saw Ling'er stretch out her jade-like fingers and press them against the wall, closing her eyes lightly. Then, Li Yao saw golden ripples emitted from Ling'er's fingertips, like ripples on the water surface, rippling outward in circles.

Li Yao didn't know what Ling'er was doing, but after Yu Chuanqing saw it, a smile suddenly appeared on her face and said, "The little princess is a good technique."

"What do you say?" Li Yao looked at Yu Chuanqing in confusion. Yu Chuanqing did not keep it a secret, and explained directly to Li Yao:

"The little princess is using her spiritual consciousness to detect the fragility points of the Vajra Obsidian. Vajra Obsidian can absorb spiritual power, but it has a strong reflective ability to do so. If ordinary people use spiritual consciousness to detect Vajra Obsidian, they may be disturbed by the spiritual stone reflected back from the Vajra Obsidian."

As soon as Yu Chuanqing said this, Li Yao became nervous in an instant and was about to walk towards Ling'er to stop Ling'er. However, Yu Chuanqing stopped him in time and comforted him: "Don't worry, young master, I said just now that he is an ordinary person, and the little princess is not an ordinary person."

When Li Yao heard Yu Chuanqing say this, he calmed down, but he did not let go of his worries.

Seeing this, Yu Chuanqing smiled slightly and asked Li Yao: "Master may see the golden light spreading from the little princess' fingertips?"

Li Yao nodded. The light was particularly obvious in this dimly lit room. Although it swept around like ripples, its texture was similar to smoke.

"That's right, the spiritual consciousness technique used by the little princess is called Luoxia Feiyan. Unlike ordinary spiritual consciousness, it can restrain the reflection of the spiritual consciousness by Vajra Obsidian, which also avoids the impact of the spiritual consciousness on its own brain after it is reflected back."

After hearing this, when Li Yao looked at Ling again when she was a child, she saw that Ling'er only had the expression of seriousness on her face at this moment, and she did not feel any discomfort or pain.

Although Li Yao knows how to use the spiritual power of spiritual consciousness, he doesn't know much about it.

When he set up a formation in the past, he integrated his spiritual consciousness into the formation so that he could detect the positions of enemies and friends in the formation at any time, so as to control the formation for attack or assistance.

However, despite using the spiritual consciousness many times, he has never seen the spiritual consciousness that can be presented in front of him in the form of light. It was not only the first time he saw Ling'er's "falling clouds and flying smoke" but also the first time he heard about it, so he was extremely curious about it.

The two of them looked at Ling'er on the side. After not long waiting, the "falling smoke" on Ling'er's fingertips gradually faded away. Then they raised their heads and looked at the two of them again, and returned to their sweet smiles.

"Brother Yao, Ling'er has already detected the entire secret room and found that there are eighteen mechanisms in the secret room. However, only one of these eighteen mechanisms is a real mechanism. If you find the wrong one, something unexpected may happen."

Ling'er said this very lightly, and her face was always filled with the sweet smile that made people like it very much. In Li Yao's opinion, Ling'er seemed to have found the real mechanism.

Just as Li Yao was about to ask Ling'er if she knew where the real mechanism was, she heard Ling'er laughing: "But these eighteen mechanisms are linked together, and it seems to be a continuous mechanism. It is possible that the next one will trigger several mechanisms at the same time, and there are extremely exquisite mechanisms behind it, so Ling'er doesn't know which one is the real mechanism."

"This..." Li Yao was suddenly depressed and even felt a little ache. "Do you need to be so cruel? Use Vajra Obsidian as the wall to prevent candidates from using their spiritual sense to detect it. He also created an eighteen-linked mechanism. Is this going to kill people?"

But Yu Chuanqing didn't think so. She just looked at the extremely smooth Vajra Obsidian walls on the front, back, left, left, and bottom, and murmured: "If such a complex mechanism is arranged, why are you still wasting the extravagance and waste of Vajra Obsidian as the wall?" After thinking so, she asked Ling'er again:

"Little princess, have you detected anything unusual about these six walls just now?"

After hearing what the fish said, a light flashed in Li Yao's heart. But the light flew in a flash, and Li Yao slipped away from his hand without even grasping it.

Ling'er closed her eyes again and recalled all the details she had just detected.

If there is anything unusual about these six walls, there is really something. That is, the Vajra Obsidian on the roof is thinner than the other five sides, but the eighteen mechanisms are on the thickest front, back, left and right walls! So Ling'er doesn't think this is a worthy place to be noticed.

But when Ling'er expressed her doubts, Yu Chuanqing looked at the roof and carefully investigated it, she said to Ling'er: "Little Princess, please put away the luminous beads."

Ling'er understood and took the luminous pearl back into the Qiankun bag. In an instant, the entire secret room fell into extremely depressing darkness again.

In the darkness, everything around me becomes extremely quiet. But in this extreme silence, people's hearing becomes extremely sensitive.

When Li Yao heard Ling'er move towards him, he reached out to hug Ling'er in his arms. He knew that Ling'er was a little afraid of the darkness.

Inadvertently, Li Yao showed his fox's ears, and his ears trembled slightly, and the extremely small sounds around him were completely captured.

He could hear the extremely small friction sounds of mechanical rotation behind the wall, and the fainter voices of people in other rooms.

It seems that he is also a candidate trapped in a secret room.
Chapter completed!