In the tunnel, the guards of the Xiyang Prince's Mansion escorted the princess Yuchi Chifan, the prince Yuwen Weicheng and others to walk forward. The tunnel was straight in the direction, and the width could allow two people to move side by side. The height also allowed people of normal height to walk upright, which was much spacious than the tunnel that Yuchi Chifan had imagined before.

There are wooden boards on the top of the tunnel and supported by wooden beams, which looks very stable. The tunnel is not very stuffy, so there must be ventilation vents. Not only that, the guards leading the way at the front also carry oil lamps, as if they are not afraid of the exhaustion of the air in the tunnel.

Yuchi Chifan heard from his husband Yuwen Wen explain that the difficulty of digging tunnels is to avoid landslides, and then avoid deviations in directions, and then to ensure ventilation, otherwise, people will easily be suffocated in the tunnels.

If authentic ventilation is not done well, don’t light too many lamps and torches to avoid the “oxygen” in the air being consumed in large quantities, resulting in “deficiency of oxygen”.

At that time, Yuwen Wen explained to Yuchi Chifan what "oxygen" was, but Yuchi Chifan still couldn't figure out what "oxygen" was. Now walking in the tunnel, her most concerned issue was how the tunnel was dug out and how to maintain the correct direction underground.

Yuchi Chifan felt that since he had to escape by relying on the tunnel, the length of the tunnel would definitely not be short. In order to act secretly, the guards of the royal palace must have to dig tunnels silently under the ground. In this way, it would be as difficult to walk straight as if they were blindfolded.

The most critical issue is the time required to dig the tunnel. Yuchi Chifan took his son to Yecheng with his daughter Princess last year. Later, the emperor changed his wedding day, which led to her and her son being placed under house arrest in the palace. From then on, it has been nearly a year.

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

Of course, Wu Ming could not answer the question of the princess truthfully, because when King Xiyang was or Duke of Xiyang County, he arrived in Yecheng and arranged a secret team lurking in the city to dig tunnels for emergency escape.

Until now, this tunnel has been dug for nearly six years. After the incident last year, the tunnel has just passed under the palace wall. For the last distance, Wu Ming and others carefully dug it for almost a year before they completed the construction.

Such a secret is not needed to be known to the princess, let alone outsiders are present now, so Wu Ming's statement is that this tunnel has existed for a long time. By chance, he learned about the existence of this tunnel from the people of the Yuqi Palace who were wandering among the people.

Of course, they replaced the wooden beams that support the top of the tunnel.

Yuchi Chifan nodded after hearing this, and Wu Ming spoke loudly. The daughter-in-law who was following behind also heard it, and the doubts in his heart were resolved.

The current imperial palace is rebuilt on the former site of the Guqi Palace. If there are tunnels that have been dug since then, it is really good to renovate them as a passage to escape from the palace.

The daughter-in-law turned to look at Agnes and asked in a low voice if she could still move. Agnes nodded and said it was OK.

Her cheek was cut by the princess Shu with a dagger, and blood flowed. Before entering the tunnel, the guards of the Prince of Xiyang took out trauma medicine and bandages from the "first aid kit" she carried with her to temporarily bandage Anis to stop the bleeding.

The blood has stopped, but it is best to get a doctor to deal with the wound, so as not to leave scars on the face in the future.

The daughter-in-law didn't have time to think about what to do in the future, so she was worried that Agnes would not be able to walk. After all, if she wanted to leave the palace, it would mean that the distance was very far. Agnes had been experiencing a lot of physical strength before, but she was also lame and she didn't walk fast.

This worry quickly disappeared without a trace, because the front end of the tunnel suddenly turned a corner, and the front became obviously spacious, and several four-wheeled cars were parked in the middle of the tunnel.

These cars have a very simple structure, no ceiling, and have a seating position facing each other, which is more than enough to accommodate four adults. If you squeeze in, you can sit down six people.

"This... is this a cart?" Princess Qianjin felt a little unbelievable. There was a cart to carry in the tunnel below.

"Yes, please get in the car as soon as possible."

The guards didn't explain much, and first helped the princess get on the first car. After the prince got on the car, Yuchi Mingyue followed him into the car and sat next to her sister.

Yuwen Weicheng was a little scared at this time, of course he had to be with A Niang, and Yuchi Mingyue was also a little scared, and wanted to be with A Sister.

She was very sad about Wang Xin's performance just now, and she felt completely disappointed for a moment. She didn't know whether to stay in the palace or flee with Wu Ming, but when she saw her sister coming, she ran away with her sister in a daze.

Before entering the tunnel, she was nervous. When she heard the footsteps chasing around her, Yuchi Mingyue felt that her heart was about to jump out of her chest. The moment the guard hugged her and jumped directly into the cave was really exciting.

So when she reached the dim tunnel, she wanted to rely on her sister.

After Yuchi Mingyue sat firmly, a guard trotted in front of the car with an oil lamp, and two guards pushed the car forward and moved quickly from behind the car, one left and one right.

The others got on the bus one by one, and were also pushed forward by the guards.

Wu Ming and several of his men broke the ground and struggled to push two large millstones, blocking the entrance and exit at the corner, and then using a few pieces of wood as thick as a beam as a door bolt to jamm the millstones.

Everything was ready, and they chased the cart and quickly advanced towards the other end of the tunnel, and were about to leave the tunnel before the soldiers closed the streets and move elsewhere.

......

In the palace, a large number of soldiers gathered at the entrance of the tunnel that was shaped like a cave, and were entering the tunnel one by one to pursue the thief. A scream came from the cave. The wailing sound of the soldiers who had just arrived at the tunnel were pierced by bamboo sticks.

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

After finally coming to the "ground", the soldiers walked forward with torches. Before they walked far, they saw another hole in the ground. They wanted to go down but found that there was no ladder. After a while, the rope was sent down the ground. The first soldier who slid down the rope was pinched by the trapped beast and his calf was flowing blood.

The soldiers followed up and walked forward. Someone accidentally stepped on the flip board and almost broke his calf.

Although the attacks were not fatal, the soldiers became more and more cautious and moved forward carefully in the tunnel, and the speed was not fast at all. After walking in the straight tunnel for a while, they found that the tunnel ahead was blocked.

The objects blocking the road seemed to be a stone mill, and the soldiers pushed hard but could not push them. Because the tunnel was narrow, the three people could barely squeeze and stand together side by side. How could they use force in this case?

A short beam was quickly transported from behind, and several soldiers lined up in rows and carried the beams together to hit the stone mill.

The place was narrow, and many people's arms were worn by the tunnel walls, while the stone mill in front remained motionless. Some people saw a lamp niche on the wall and an extinguished oil lamp inside, so they simply used a torch to light the lamp, and then abandoned the torch and freed their hands to lift the beam.

The lights of the oil lamp were normal at first, but after a while, sparks suddenly "hissed" and sparks were ignited, just like the fire twists of thunder that were ignited. Before the soldiers could react, thick smoke suddenly appeared from the lamp niche.

The smoke became heavier and louder, and the soldiers were choking and burst into tears. They couldn't stand it and wanted to run back. However, their eyes were smoky as they were crowded, and soon they were in chaos and stepped on each other.

The thick smoke floated down the tunnel toward the exit, and many soldiers who had just gotten off the tunnel were rushing up again, just like a rat in a rat's hole, climbing out of the hole in a mess.

Seeing this, the generals were so angry that they cursed, but they had no choice but to do anything. The tunnel was urgently unable to be opened, and it was impossible to catch up with the thief. So they asked the soldiers who had gone down the tunnel for the direction of the tunnel.

There is a ground listening near the palace wall, which is to prevent someone from digging tunnels into the palace. Now the thief actually dug an authentic tunnel into the palace, which shows that in addition to digging deep, the tunnel must also be straightened to reduce the amount of digging and reduce the chance of movement and still being discovered when digging tunnels.
Chapter completed!