"This palace ...... This palace ......" Ye Huang muttered softly, he frowned and said, "I look at it and feel a little familiar, I don't know what you think of the wind duct?"

"Familiar ......"

Feng Qingyun and Zhang Ye also began to look at the palace in front of them, which was full of depression and dilapidation.

They also felt as if they had seen a palace with a similar feeling somewhere, but they couldn't remember anything for a while.

Suddenly, a picture appeared in Ye Huang's mind.

A huge, underworld-like place, where there are also such palaces.

He thought about it and said loudly: "I remember, in the Xia family! On the night when the Xia family was destroyed, Xia Fei once took us to the underground palace, and it was like this!"

After Ye Huang's reminder, Feng Qingyun and Ye Huang also suddenly realized, yes, take a closer look, this palace and the underground palace of the Xia family, whether in scale or architectural style, can be said to be almost identical, the only difference is that in front of this palace, there is no huge square, and there is not a stone statue.

I remember that Xia Fei once said that the underground palace was not built by the Xia family, but originally existed underground, but after it was discovered by their Xia family, Xia Fei coincidentally got the way to open the palace, and was occupied by the Xia family for his own use.

Now, in the secret realm where the Lei family is hiding, this palace has actually appeared.

This...... Was it a coincidence, or was there some kind of relationship they hadn't even thought of before?

"Whether it's a coincidence or not, we have to find a way to get in if we want to. Feng Qingyun said: "Let's see if there are any disciples of the Lei family around first, and then make plans." ”

"Well, the Wind Path Chief is right, now is not the time to think about this. Zhang Ye glanced around and said, "There is no one else here, but the view on the side of the gate is too wide, not to mention whether we can enter directly from the gate, I am afraid that as soon as we get close, we will be seen by people from other places." ”

"Will there be a side door, look for it. Ye Huang said.

The group searched around the palace, and while everyone else was staring at the palace, Duan Fei looked around, not knowing what he was looking at.

After going around, it was found that there was no entrance to the palace except for a main entrance.

"Do you really want to break into it directly from the main entrance?" Zhang Ye asked.

"Who said that without a door, there is no way to enter it. At this time, Duan Fei suddenly said with a strange expression.

The others looked at Duan Fei to see if he had any other ideas.

Duan Fei had a compass-like tool in his hand, and a set of paper and pencils, he spread the paper on the ground and began to write and draw on it with a pen. As he wrote and draw, he did not forget to explain: "This palace is built on the broken wall of the valley, and there is a huge waterfall next to it, and there is a deep pool below the waterfall. ”

As he spoke, Duan Fei had already drawn a rough map on the paper. These were some of the information he had found when he had just observed the palace.

"If there is a waterfall above, then all the water in this palace must be taken directly from above, and the discharge of domestic wastewater is also directly discharged into the downstream pool. As he spoke, Duan Fei drew two more lines on the map.

"You mean, there's a drain and an inlet, and we can get in directly through here?" said Feng Qingyun.

Duan Fei snapped his fingers and said, "That's right, that's it." ”

Li Ling asked in a low voice: "This palace seems to have a history of many years, was there such a project to drain water at that time?"

The corners of Duan Fei's mouth cracked into a smile, stretched out a finger and shook it and said: "Don't underestimate the ancients' use of water conservancy projects and drainage systems, if you have time, let's go to Luoyang, Xi'an or the capital to have a look, some drainage systems left over from ancient times, underground rivers and so on are still used until now." ”

This is also Li Ling's lack of learning and unskill, so it is rare and strange.

Ye Huang gently patted Li Ling's shoulder from behind and said, "Let you read more books." ”

Li Ling stuck out his tongue, but he had already begun to think of other things in his heart.

According to the future seen in the dream, Jiang Qin and Duan Fei were not seen, so that is to say, before being chased and killed by He Zhihua, Jiang Qin and Duan Fei had already separated from their large army.

In order to buy them time, Jiang Qin stayed behind the hall on the other side of the fault, which had already explained this very well, and the next thing was Duan Fei.

In what way will he have to break away from the large forces?

Li Ling glanced at Duan Fei, and silently prayed for him in his heart, only hoping that this way of detachment would not be a matter of life and death.

According to Duan Fei's words, everyone walked to the waterhole and began to search for the two entrances and exits for drainage and entry.

Although I said to Ye Huang and the others that after entering this valley, it is like walking on thin ice, and you must be careful of danger everywhere, but excluding these factors, I have to say that the customs here are really good.

Surrounded by mountains and water, the surrounding trees are also lush, and this huge waterfall is the finishing touch. If it is not in the secret realm of the Lei family, but in a random place in the outside world, I am afraid that it will soon become a scenic spot, and then the tourism bureau will start to enclose the land and collect tickets.

With the roar of the waterfall, everyone found a drain.

The drain is directly below the pool, directly below the ground, and in order to enter it, you must first dive to a depth of two or three meters.

For the five people present, this was naturally not a problem, and it was very easy to dive into the drain.

After entering, another very obvious step, and when they walked up the steps, everyone came out of the water and went ashore.

The outlet of this drain is very wide, although it is dim and there is no light source in sight.

Duan Fei magically took out a lamp from the small box he was carrying, and only after having the light source could everyone see the appearance of this water outlet clearly.

It's very damp and dark, and the soles of your feet are covered with mud that is up to your knees, and with the help of the lights, you can see some crypt creatures living in it very happily, and when you see people coming, a few mice didn't react at all, staring at them with a pair of green eyes, looking at them, the rats...... I'm afraid it's the size of a cat.

Suddenly, several rats showed hideous faces and rushed towards them.

"Be careful!" said Feng Qingyun loudly.

Zhang Ye shot quickly, and a golden light burst out from his hand, directly killing the three rats that rushed up on the spot.

After the teacher was on the ground, his body continued to writhe, and it took him a long time to die.