Zhang Yu turned his head to look at the stone gate behind. This time he looked at it, but he couldn't help but be stunned. It turned out that there was a stone gate in front of him, and it was clearly a mountain wall. Moreover, the mountain wall was not flat and had soil layers, so it was impossible to tell that it was a gate.

When the female driver saw Zhang Yu turn around, she also turned around. Seeing the mountain wall in front of her, the female driver couldn't help but say, "How could this door look like this..."

Zhang Yu thought about it for a while and said, "The reason is very simple. This is just an exit. The people who design the agency have a very clever layout. I dare to assert that not only does there not come in the agency outside, but even if they are seen, it is difficult to determine. There is a unique world here."

"Since... since this is the case... how could he be discovered..." the female driver said in surprise.

"It seems that among you, there are still hidden dragons and creeping tigers." Zhang Yu said.

The female driver nodded and said, "This is true. We came here this time, not only invited a blasting expert, but even a geological expert."

"That's it..." Zhang Yu couldn't help but sigh in his heart. No matter how much wisdom the ancients had, it was nothing in the face of modern technology. I was afraid that no one could enter such a mechanism from the exit, but today, it could indeed be forcibly broken.

"Mr. Zhang, what do you think we should do now..." the female driver said hesitantly.

"Now..." Zhang Yu also hesitated. Now there are only two choices left for them, one is to go out and the other is to return to the Dark City.

Hua Yunong's people must have entered from here, but I just don't know if the people who caught Hua Yunong's people followed him.

But Zhang Yu was sure that as long as he went back, there would inevitably be a desperate battle. Of course, this was also mentally prepared before he arrived.

"Let's go back." Zhang Yu said, squatted down, and crawled in from under the stone gate.

The female driver followed him into the hall and returned to the Qinglong Palace. Zhang Yu walked around the screen and came to the hall.

He walked slowly towards the door of the hall again, and soon arrived at the door of the hall. Zhang Yu was about to drill out along the hole under the door, but just as he squatted down, his heart suddenly moved and he stood up again.

The female driver followed him. She thought Zhang Yu was about to go out now, but when she saw Zhang Yu standing up again, she couldn't help but say curiously: "What's wrong?"

"I just want to see this gate..." Zhang Yu said.

The door in front of me is full of dragon-shaped patterns, and the carvings are exactly the same as other places. It is because there are two gaps that make people sure that this is a portal.

"This door... seems to be like the secret door we saw before..." the female driver said in confusion.

"When I came just now, there were five copper rings behind the door. According to the instructions on the map, you can open the door by pulling the copper rings in turn." Zhang Yu said slowly.

"That's right." The female driver nodded.

"But have you ever thought about the fact that there is a mechanism outside the Taoist sect, but why there is no obvious mechanism inside?" Zhang Yu said.

"This..." The female driver was immediately stopped by Zhang Yu.

"According to the layout here, in the dark city, there seems to be only moving forward mechanisms and no retreat mechanisms. This place is the same as the White Tiger Palace before, and it is also a formation. I can also prepare to find the location, break it, and open the portal of the mechanism. But if nothing unexpected happens, this portal must be the portal behind the screen. Following the passage behind the screen, we can leave from the entrance of Qinglong Mountain." Zhang Yu said.

"Yes, it's probably like this." The female driver nodded.

"Then this should be a little bit conclusive. Nurhaci and the Taoist priest came in from Baihu Mountain and went out from Qinglong Mountain. Perhaps they didn't want to go back to Zhuque Palace and Xuanwu Palace, but because they couldn't go back. They could only walk forward." Zhang Yu said.

"It makes sense." The female driver nodded again, but then said: "If you really want, you can also get back from Baihu Mountain..."

"It's not that easy." Zhang Yu said calmly: "At least in the underground four-simile formation, the old Taoist should have exhausted his true energy. Even if he knows the method, he will not be able to break it again in the short term. Also, he can only move forward, not retreat. What will happen after entering the Suzaku Palace or Xuanwu Palace and where it will reach, it is really an unknown. Therefore, the old Taoist and Nurhaci must not want to take this risk again."

"That's right... In that case, we will face unknown dangers next..." said the female driver.

"It's..." Zhang Yu smiled and said, "Now I really want to see what is in the Suzaku Palace and Xuanwu Palace, and where it will be connected... Okay, let's go..."

After saying this, Zhang Yu squatted down again and crawled out from the hole below.

The female driver immediately came out, and the two of them arrived at the passage one after another, and their eyes were dim. They continued to walk forward, walked a distance, and arrived at the intersection.

Standing at the intersection, the female driver said, "Mr. Zhang, let's go there?"

"Which side?" Zhang Yu thought for a while. To be honest, he wanted to find Hua Yunong and others, but it was so dark here that he could not find any clues. He could not tell wherever he could meet.

After a while, Zhang Yu said, "Go aside..."

As he said that, Zhang Yu pointed to his right hand and then said, "It's the same when you go from any side. You can't meet this side, and you can also meet it on the other side..."

The female driver nodded. There were only two choices anyway, one side could not be met, and the other side could be encountered.

The two of them moved along the way, and Zhang Yu knew that in terms of direction, this side should be the Vermilion Bird Hall.

The two walked forward all the way, and after walking for a while, they saw a portal in front of them. In addition to this portal, Zhang Yu also felt a stone stepping on his feet.

He immediately looked down and the female driver obviously stepped on something, so he lowered his head to watch. As soon as he lowered his head, the two of them could see a pile of stones underground, under the stone gate, there was a hole nearly half a meter high.

As soon as he saw this, the female driver immediately said excitedly: "They have been here."

"Go in and take a look." Zhang Yu said, squatting down and drilling into the hole.

When he entered, Zhang Yu immediately jumped up from the ground. He was also worried, what if someone found him inside and attacked him directly.

Fortunately, he was not attacked at all, but he was shocked when he saw everything he saw.
Chapter completed!