Wang Yan was the first to walk in.

The crowd hurried to follow.

The tunnel was cold, dry and not stuffy, Wang Yan secretly wondered, and after walking for a while, he found that there was a half-foot-high vent above the wall next to the top of the dome, separated by an iron fence, and fresh air flow entered from there. There are such vents every half a mile. Wang Yan estimated that it was connected to the underground water channel in Xuanwu Pass, because his family's secret room was constructed in this way.

This is not a surprising finding.

Because the vent is very small, it is impossible to enter the underground waterway through this vent and then climb into the Xuanwu Pass.

I have to find another breakthrough.

At first, he carefully inspected the walls on both sides of the tunnel and the top of his head as he walked, lest he miss any signs or accidentally hit any mechanism; But no. Later, when he saw that he couldn't get his head at all, and that it was not a problem to walk so slowly, he quickened his pace; After walking for a few miles, he simply ran.

Still don't get the head!

The compass needle kept moving, and Wang Yan felt that they were circling in circles, circling the Xuanwu Pass City, but not in circles, but in an irregular semicircle, because there was a sudden sharp turn in the north, and the compass pointer also suddenly turned.

After running for more than a dozen miles, it was finally over.

Ahead, there is a stone door.

Another Tai Chi relief on the door.

Everyone breathed a sigh of relief, and waited for Wang Yan to open this door of hope; I am afraid that behind the door is a certain important place in the new city, guarded by the security army, and the old servants and others are guarded by Wang Yan's side in case of accidents.

Wang Yu settled down and broke the level!

This is the easiest for him.

The door opened, and the old servant raised his hand—

However, nothing!

There was no one and no sound.

However, there is a familiar aroma.

The aroma of stir-fried bacon with green peppers!

Take a closer look, there are pots and pans, water tanks, rice bowls...... They're back in the kitchen!

Everyone looked at each other.

Liang Chaoyun pursed his lips and said, "It's just right, just in time to make lunch." As he spoke, he walked in first and began to choose vegetables and cook. ——She has developed a habit since she was a child, she must take care of her younger brother at all times, let her younger brother eat and dress well; As for the mechanism or something, she is not worried, her brother is so smart that he can always crack it.

Wang Yan: "......"

After a moment of silence, he walked into the hall and stood still under the Taiji diagram; The old servant hurriedly moved a chair and placed it behind him, so that he could sit down when he was tired of standing.

This time, he didn't delay.

After the meal, he opened the door of another passageway, by the bedroom door, and then they went into the tunnel again, and turned around again.

Finally, it's back to the bedroom!

Wang Yan stared at the broken door, looked at the bed and cabinet inside, closed his lips tightly, and said nothing, feeling a little strange.

Everyone didn't dare to say anything, lest they would make him unhappy, so they went to work separately, and there was nothing to do in the end, just wait.

Wang Yan stood under the Taiji diagram again, staring at the Taiji diagram with both eyes, but he didn't pay attention to it, because he didn't need to look at it again, he already knew the diagram in his chest; His eyes were vain, and he pondered at the diagram: although his father's mechanical formation attainment was high, he might not be able to stump him; He didn't understand this formation, and there must be a reason for it.

Why?

I'm afraid it has something to do with my mother.

The mother is the most cunning, and she will never let the person who understands the formation come to a conclusion according to common sense, which must be contrary to common sense, and this abnormality is familiar to his son, so that he will not be unable to understand; At the moment, he didn't understand that it was not that he had neglected something, but that he was limited by geographical advantages and failed to understand the whole picture of the formation.

Wang Yan's eyes were fixed, and he looked at the Tai Chi Bagua diagram in front of him again, staring at the pair of yin and yang fish in the middle and pondering; In his mind, he drew the trajectory of the tunnel that turned around before, two passages, two semicircles, just like a pair of yin and yang fish, which together are exactly a full circle, which coincides with this Taiji diagram.

He closed his eyes and deduced:

The secret room they are currently in should be the fish eye of the yin fish, which is the yang eye; In contrast, the yin eye of the yang fish is on the opposite side, behind the hall.

He opened his eyes and stared at the wall.

There must be something behind this wall!

And a door passed through.

The two doors that opened earlier, one on the left, next to the kitchen; One on the right, next to the bedroom; Now this door should be in the middle.

Thinking about it, he reached out again.

After he made a quick circle on the Taiji diagram, he pricked up his ears and waited for the door to open, but after waiting for a while, there was no sound.

He was confused.

After that, he watched for a while, tossed for a while, and waited for a while; Look at it for a while, then tilt it for a while, wait for a while, and there is no movement.

Liang Chaoyun brought the meal.

He took it and ate silently.

After eating, he went to stare at the wall again.

After a long time, his dark eyes revealed puzzlement: it didn't make sense, he was sure that he couldn't be mistaken.

It was cold outside, but it was warm in the secret room, not the warmth of the floor heat, but the feeling of being cool and moist like a summer morning, neither cold nor hot, but he made a fine sweat. He took off his outer leather coat, and wore a duck egg green tight short shirt and trousers, and the whole person looked like a green jade carving; Therefore, he was engraved in the ground, under the light, his expression was solemn, his eyes were deep, his smooth cheeks and black eyes were revealing a jade-like luster, more and more like an ancient jade, and his whole body was full of unspeakable mystery, and he was integrated with this tunnel and this secret room.

Chaoyun felt uncomfortable when he saw him sweating.

When she was a child, she also followed Wang Heng and Liang Xinming to learn the number of tricks, but one person's energy is limited, she studied medicine with the old king of Yama, and learned martial arts from Zhao Ziyi, and her medicine and martial arts are very high, in comparison, the number of tricks is much worse, and it can't be compared with Wang Yan. But she thought that if she talked to her brother about it, it might trigger his thoughts.

She walked over, stood still beside Wang Yan, took out a handkerchief to help him wipe the fine sweat on his forehead, and asked, "What's the matter?" ”

Wang Yan told Chaoyun his analysis of this Tai Chi Bagua Formation, and pointed to the door of the hall, saying, "There should be a door in the middle, but I can't open it." It doesn't make sense. There must be a door to enter. ”

Liang Chaoyun frowned and remembered.

Wang Yan said to himself: "It can't be that my mother is too careful, this secret room is designed to only go out, not from the outside, right?" ”

Liang Chaoyun shook his head and said, "No." can only go out but not in, although it can prevent villains, but it also restricts itself, unlike what my father did. But there is some truth to what you say, and I think of another possibility. ”

Wang Yan hurriedly asked, "What is possible?" ”

Liang Chaoyun said: "You are not mistaken, there is a door here, but this door has a control mechanism inside. For example......"

She paused, trying to describe it accurately.

Wang Yan reacted very quickly and blurted out: "It's like a door bolt!" This door is tied inside! Oh - I see! A smile appeared on his face, but it was not a cheerful smile, but a bitter smile of annoyance, self-deprecation.

Chaoyun said: "Yes, it's the door bolt!" ”

After speaking, he asked, "What do you understand?" ”

She knew that what Wang Yan was talking about was not a door bolt.

Wang Yan said: "My mother expected many things, but I didn't expect Pan Zihao to defect to the enemy and betray the country, and Xuanwu Pass fell into the hands of the enemy. She thought, the worst case is that I can't hold the Xuanwu Pass, if I lure the enemy in before retreating, and then use this formation to destroy the Xuanwu Pass, I can solve the danger. However......"

However, Xuanwu Pass is now occupied by the enemy.

They didn't retreat from the gate, but sneaked into the pass from outside the gate, and if they didn't enter the secret room with the deadbolt, how could they activate the formation?

Liang Chaoyun: "......"

Savvy daddy!

It's a pity that it's his own son who pits.