Once again, Zhang Yu's heart trembled when he heard the "click" sound above. Because Zhang Yu knew that every time the mechanism above was opened, toxic gas would be released.

The more mechanisms you open, the faster the poison gas will be emitted. In this case, as long as you breathe, you will inhale more poison gas than before.

If Zhang Yu inhales a little before, he will feel suffocating. If he inhales too much, no one can stand it. The female driver is obviously not as good as him. I really don’t know if he can hold on.

Fortunately, he reacted quickly, so he took out two miasma-avoiding talismans from his arms. When he arrived in such a place, he had to prepare any talisman paper.

With a "puff", the talisman paper ignited and then went out. Zhang Yu immediately stuffed the talisman ash into his mouth and then tried to breathe. This attempt also felt a little suffocating, which was almost the same as Xingqian.

He was so scared that he quickly held his breath, but Zhang Yu vaguely realized that although he felt that it was similar to the first time, he had already opened three mechanisms. In other words, although the miasma avoidance talisman cannot be completely effective, it should still have some effect.

He immediately squatted down, lit another miasma-avoiding talisman, and handed the miasma-avoiding talisman to the female driver, saying, "Eating it will relieve it a little bit."

When the female driver heard the sound, she turned her head and looked at it. When she saw the Fu Hui given to her by Zhang Yu, she opened her mouth without hesitation and ate Fu Hui.

After he ate it, Zhang Yu immediately returned to the stone wall, moved the "three" ball placed in the groove back, and moved the "four" ball to the groove.

In this way, he tried one by one, putting the balls here one by one into the groove in order. Every time the balls were placed into the groove, a "click" sound would be made here and above the stone wall and above the head. Zhang Yu put all the ten balls all over, and the sound was the same every time, without any difference.

At this moment, Zhang Yu was a little confused. According to his idea, he planned to put all ten small balls into the groove and then distinguish them through the sound. But he really didn't expect that every time he put the small ball in, the sound made by the small balls would be the same. In this way, how to distinguish them is simply different from the previous mechanism.

This move didn't work, and Zhang Yu was a little stunned on the spot. If not, how can he fool the numbers to open the mechanism? Although there are not many numbers, there are 4 sets of 10 numbers, one by one, and God knows when they can hit it.

Not only that, Zhang Yu still felt that the breath in his mouth could no longer be held back. He could only exhale and take another breath. As soon as he sucked in, Zhang Yu felt a little confused and his eyes were a little dark.

He took his breath and took a moment to figure it out. He secretly cried in his heart that if he couldn't open the agency as soon as possible and leave the place, he and the female driver would have to die here. He looked like the officers and soldiers who died here.

"Mechanism...How to open this mechanism..." Zhang Yu's mind turned rapidly. After thinking for a moment, he suddenly thought of his past experiences at Haimen Mountain and Yanzhi Mountain twice.

At that time, I didn’t know how to do the mechanism at all. I only relied on other understandings of Qimen Dunjia to fight all the way to the mechanism.

Thinking of this level, Zhang Yu couldn't help but feel his spirit. He said in his heart: "Yes! The mechanism here may not be able to be opened entirely through mechanism techniques, but it needs to be understood by Qimen Dunjia!"

Wanting this floor, Zhang Yu couldn't help but jump directly, jumped out two steps, and then carefully looked at the stone wall in front of him again.

"Cross..." Zhang Yu pondered, stretched out his hand to measure it, "Go to the north and south, left to the west and right to the east... Hey, this is Sixiang Mountain. Will this be related to Sixiang... No matter what, let's try it first!"

Time doesn't wait for anyone, and whether it will succeed will be tried first. Zhang Yu snatched it back with one step. According to his understanding of the Four Symbols, if the mechanism of this stone wall is really related to the Four Symbols, Zhang Yu is confident that he will be able to open it.

He immediately pushed back the small ball with the number "zero" written in the groove, and then he pressed the small ball with the number "four" and quickly pushed the small ball into the groove. He shouted in his heart: "Bei Xuanwu!"

After shouting, the ball was pressed into the groove by him.

Two "crack" sounds, and the stone wall and above the head made a sound.

Zhang Yu did not take it in his heart, but quickly pressed the "seven" ball diagonally opposite and pushed the ball into the groove at the bottom of the "ten" line. He shouted in his heart: "Nan Zhuque!"

There were two more "kick" sounds, and there were still sounds on the wall and above the head.

Zhang Yu did not hesitate, and pressed the "six" ball on the upper left and pushed it directly into the groove on the left side of the "ten" line. He shouted in his heart: "Western White Tiger!"

"Click" or two sounds, but it was still from those two places.

Finally, Zhang Yu pushed the small ball of "nine" in the lower right directly into the groove on the right side of the "ten" line, and shouted in his heart: "Dongqinglong!"

Accompanied by the shouting in his heart, the ball made a "click" sound after entering the groove.

There was only one sound, and this time, Zhang Yu heard no sound from above.

However, in an instant, the stone wall opposite made another sound.

"Crunch...crunch...crunch...crunch..."

The thick stone wall in front of him kept moving upwards, gradually revealing the portal behind him. Seeing this, Zhang Yu couldn't help but be overjoyed and couldn't help but scream excitedly, "It's successful!"

With this sound, Zhang Yu breathed the strange smell. As soon as he smelled the smell, Zhang Yu almost turned his back.

Zhang Yu knew that he could not stay here for a long time and had to go there immediately. He turned around and grabbed the female driver's side in two steps, and reached out to pull the female driver directly.

Just pulled his arm, half of the female driver was pulled up powerlessly, but there was no movement at all. Zhang Yu took a closer look and found that the female driver had closed his eyes, not knowing whether he was dead or fainted.

Zhang Yu had no time to check it out, so he picked up the female driver from the ground and rushed over to the door that opened in front.

The stone gate is now about two meters high and it doesn't move. After Zhang Yu rushed over with the female driver in his arms, he took a tentative breath.

This time, he did not smell the strange smell anymore. He was so excited that he took several deep breaths.

While breathing, he thought of the female driver in his arms, and quickly put the person on the ground to visit the female driver's breath. To be honest, saving people is like putting out a fire, and Zhang Yu didn't make time to observe the surrounding environment.
Chapter completed!