In the tunnel, the guards of the Xiyang Royal Mansion escorted the princess Yu Chi Chifan, Shizi Yuwen Weicheng and others to walk forward, the direction of the tunnel is straight, the width can accommodate two people to advance side by side, and the height also allows people of normal height to walk upright, which is much more spacious than the tunnel that Yu Chi Chifan imagined before.

The top of the tunnel is supported by wooden planks and wooden beams, which looks very stable, and the tunnel is not very stuffy, there must be ventilation openings, not only that, but the guards who lead the way in front also carry oil lamps, as if they are not afraid of the air in the tunnel being exhausted.

Wei Chi Chifan listened to his husband Junyu Wenwen explain, saying that the difficulty of digging tunnels is to avoid landslides first, and then to avoid deviations in the direction, and then to ensure ventilation, otherwise, people are easy to suffocate in the tunnel.

If the ventilation of the tunnel is not done well, then do not light too many lamps and torches, so as not to consume a lot of "oxygen" in the air, resulting in a "lack of oxygen" for people.

At that time, Yu Wenwen explained to Yu Chi Chi Fan what "oxygen" was, but Yu Chi Chi Fan still couldn't figure out what "oxygen" was, and now walking in the tunnel, her biggest concern was how to dig out the tunnel and how to maintain the correct direction underground.

Wei Chi Chifan felt that since he had to escape by tunnel, the length of the tunnel would definitely not be short, and in order to act secretly, the palace guards could only dig tunnels silently underground, so that it would be as difficult to walk straight as walking blindfolded.

The most critical issue is the time it takes to dig tunnels, Yu Chi Chifan took his son to accompany Princess Qianjin to Yecheng last year, and then the wedding day of the Son of Heaven changed, resulting in her and her son being placed under house arrest in the palace, from then to now, nearly a year.

If Wu Ming and the others dug tunnels to enter the palace after the accident, would they be able to dig such a long and deep tunnel in a year?

Of course, Wu Ming could not answer the princess's question truthfully, because this tunnel was when the king of Xiyang was still the prince of Xiyang County, after a trip to Yecheng, he arranged for a secret team lurking in the city to dig a tunnel for escape in case of emergency.

Up to now, this tunnel has been dug for nearly six years, and after the incident last year, this tunnel has just passed under the palace wall, and the last distance left, Wu Ming and others carefully dug for almost a year to complete.

Such a secret does not need to be known by the princess, let alone that there are still outsiders present now, so Wu Ming's statement is that this tunnel has long existed, and it is by chance that he learned about the existence of this tunnel from the people of the old Qi Palace.

Of course, the planks and beams used to support the top of the tunnel were newly replaced.

Yu Chi Chifan nodded when he heard this, and Wu Ming spoke in a loud voice, and the princess Qianjin who followed behind also heard it, and the doubts in her heart were resolved.

Today's palace is rebuilt on the site of the old Qi Palace, if there are tunnels that have been dug back then, then it is really good to renovate them as a passage to escape from the palace.

The princess turned her head to look at Agnès and asked in a low voice if she could still walk, and Agnès nodded and said that it was okay.

Her cheek was cut by Princess Shu with a dagger, and the blood flowed, and before entering the tunnel, the guards of the Xiyang Palace, took out trauma medicine and bandages from the "first aid kit" they carried with them to temporarily bandage and stop the bleeding for Agnès.

The bleeding has stopped, but it is best to see a doctor to treat the wound again to avoid scarring on the face in the future.

The princess didn't have time to think about what to do in the future, she was worried that Agnès would not be able to walk physically enough, after all, if she wanted to leave the palace, it would mean a long distance, and Agnès had consumed a lot of physical strength before tossing, and she was lame and did not walk fast.

This worry soon disappeared without a trace, as the front of the tunnel suddenly turned a corner, and the front became noticeably more spacious, and several four-wheeled cars were parked in the middle of the tunnel.

The structure of these cars is very simple, there is no roof, there are front and rear sitting positions, more than enough for four adults, if you squeeze it, it is possible to sit down six people.

"It's... Is this a cart? "The princess felt a little unbelievable that there was a cart in the tunnels underground.

"Yes, please get in the car quickly."

The guards didn't explain much, they first carried the princess to the first car, and after the prince got into the car, Yu Chi Mingyue followed and sat next to her sister.

Yuwen Weicheng was a little scared at this time, of course he wanted to be with Ah Niang, and Yu Chi Mingyue was also a little scared and wanted to be with his sister.

She was very sad about Wang Xin's performance, and for a while she felt that everything was lost, and she didn't know whether to stay in the palace or flee with Wu Ming, and later saw her sister coming, so she was ignorant and fled with her sister.

Before entering the tunnel, she had been very nervous, and she could hear the footsteps chasing around her, Yu Chi Mingyue only felt that her heart was about to jump out of her chest, and the moment when the guard held her and jumped directly into the hole, it was really exciting.

So when it came to the dim tunnel, what she wanted to rely on was her sister.

When Wei Chi Mingyue sat down, a guard trotted in front of the car with an oil lamp, and two guards pushed the car forward quickly behind the car.

The others boarded the car one by one, also being pushed forward by the guards.

After Wu Ming and a few of his subordinates broke off, they pushed two large grinding discs with great difficulty, blocked the entrance and exit at the corner, and then used a few pieces of wood as thick as beams as a door bolt to jam the grinding discs.

When everything was ready, they chased the cart and made their way to the other end of the tunnel, moving out of the tunnel and moving elsewhere before the soldiers closed the street.

。。。。。。

The entrance to the palace, which is shaped like a hole in the ground, gathered a large number of soldiers, and they are entering the tunnel one by one to pursue the traitors, and a scream comes from the hole, which is the wail of the soldiers who have just descended to the tunnel and are pierced by bamboo sticks when they are pierced through the soles of their feet.

The cushion used as a cushion had been removed by Wu Ming, so the soldiers could only go down the straight ladder along the cave wall, and the first one to come down was pierced by a bamboo stick, and the others couldn't help but be careful.

Finally came to the "ground", the soldiers walked forward with torches, and after not going far they saw another hole in the ground, but they wanted to go down but found that there was no ladder, and after a while the ground sent down the rope, and the first soldier to slide down the rope was caught in the trap of the beast and the blood flowed from his calf.

The follow-up soldiers groped their way forward, and someone stepped on the flap carelessly, and his calf was almost broken.

Successive hits, although not fatal, but make the soldiers more and more cautious, cautiously advance in the tunnel, the speed is not fast at all, just walk in the straight tunnel for a while, and find that the tunnel ahead is blocked.

The object blocking the road looked like a stone mill, and the soldiers pushed hard but couldn't push it, because the tunnel was narrow, and three people could barely squeeze and stand side by side, where could they use their strength in this case.

Soon after, a short beam was transported, and several soldiers lined up in twos and twos, carrying the beam together to hit the stone mill.

The place is narrow, many people's arms are worn by the tunnel wall, and the stone mill in front is still not moving, some people see that there is a lamp niche on the wall, and there is a extinguished oil lamp inside, so they simply use torches to light the lamp, and then abandon the torch to free up their hands to carry the beams.

The light of the oil lamp was normal at first, but after a while, sparks suddenly "hissed", as if the fire twist of thunder had been ignited, and before the soldiers could react, smoke suddenly rose from the lamp niche.

The smoke grew bigger and bigger, and the soldiers were choked with tears, and they couldn't stand it anymore and wanted to run back, but their eyes were so uncomfortable that they were stomped into a mess before long.

Thick smoke drifted down the tunnel towards the exit, and many soldiers who had just left the tunnel hurriedly climbed up again, like smoked rats in a rat hole, crawling out of the burrow.

Seeing this, the generals were so angry that they scolded, but they were helpless, the tunnel was desperate and could not get through, and it was impossible to catch up with the traitors, so they asked the soldiers who had gone down the tunnel to ask the direction of the tunnel.

There is a ground hearing near the palace wall, which is to prevent someone from digging a tunnel into the palace, and now this thief has actually dug a tunnel into the palace, indicating that in addition to digging deep, this tunnel should be straightened to reduce the amount of excavation and reduce the probability of being found when digging the tunnel.

Therefore, the generals judged that as long as they concentrated the soldiers in the direction of the extension of the tunnel, they would definitely be able to catch the traitors.