I traveled through the plane space with the trading system

"Underground? How did you come up with the idea of underground?" Meng Weiyuan asked in confusion.

Meng Kexin told Meng Weiyuan about the last time they discovered the tunnel in Mount Yao.

Meng Weiyuan fell into deep thought. Suddenly, an idea struck him, and he suddenly said, "Yuan'er, Xin'er, do you think there's a possibility that there's also a time traveler in Beihan Country, and that this person came from the era of the Chinese Tunnel War?"

Meng Kexin's eyes lit up when she heard this. "Dad, what you said is not impossible. Judging from the tunnels dug by the Beihan people, this time traveler is very likely an old revolutionary."

The father and daughter looked at each other and saw joy in each other's eyes.

Ye Muyuan was completely confused. He didn't understand a word of what was being said about tunnel warfare or old revolutionaries.

"Ke Xin, quickly tell me what tunnel warfare is and what an old revolutionary is?" Ye Muyuan asked anxiously.

Meng Kexin then explained to Ye Muyuan the history of tunnel warfare and the meaning of old revolutionaries.

After listening to this, Ye Muyuan suddenly understood. "So that's how it is. If it's really as you speculated, this time traveler must be very knowledgeable about China's history, which is why he thought of using tunnels for warfare. We must find this time traveler as soon as possible and find out his purpose."

The father and daughter nodded in agreement. The three decided to investigate the matter further and find the mysterious traveler.

Their guess was correct. The national teacher of Beihan Kingdom was indeed a time traveler, and an old revolutionary who had participated in the Anti-Japanese War.

Many years ago, this old revolutionary tragically died in battle. However, his soul traveled to this strange world and possessed a young man. This man is the current Imperial Master.

He felt like a soul that had traveled from the modern era. Since he had made it here, he decided to use his wisdom and strength to benefit the people of Beihan Nation. So he began to study various ancient texts and spells, constantly improving his strength.

Thanks to the efforts of the Imperial Master, the Northern Chill Kingdom gradually prospered. The people lived and worked in peace and contentment, and the nation prospered. The Imperial Master thus became a hero in the hearts of the people of Northern Chill.

However, there is always a regret in the heart of the national teacher. He misses his hometown and relatives, and misses the time when he fought for his country and people.

One day, the Imperial Master received a mysterious letter, inviting him to a mysterious place where it was said he could find a way back home.

The Imperial Master accepted the invitation without hesitation. He embarked on a long journey, crossed countless mountains and rivers, and finally arrived at that mysterious place.

There, the imperial teacher met a mysterious old man who told him that in order to return to his hometown, he had to complete a difficult task.

The Imperial Master accepted the old man's challenge without hesitation and began to practice arduously, constantly improving his strength.

But he still couldn't find a way to go back. At this time, Beihan Country was invaded by foreign enemies. The enemy was strong and we were weak. The national teacher remembered his previous life. At that time, he used tunnel warfare to fight guerrilla warfare against the enemy.

So he ordered the whole nation to dig tunnels to resist foreign enemies, and finally won the victory by using tunnel warfare and drove the invaders out of Beihan Kingdom.

Meng Kexin looked at Meng Weiyuan with bright eyes. "Dad, if we want to verify whether there are any time travelers in Beihan Country, we just need to go to Wangyou Valley and see if there is a tunnel connecting to the outside world."

Meng Weiyuan nodded, "We have to travel secretly this time and can't let anyone know."

Meng Kexin nodded seriously, "Dad, I know this is a serious matter, so we must keep it a secret and not let anyone know that you are not at Hangu Pass."

Qin Wanying walked over and said, "You should leave tonight. Come back quickly. If anyone asks, I'll say you have a cold and need to rest for a few days."

The three of them nodded repeatedly, and Ye Muyuan suddenly said, "Xin'er, we can notify Meng Da first and ask him to search in Wangyou Valley first. I think if there really is a tunnel, there should be more exits near the Xu family."

Meng Weiyuan nodded. "Yuan'er is right. Let Meng Da and the others search first, and we'll be there soon."

"But Dad, don't worry. Let me ask the system if there are any helicopters for sale in the mall. If so, we can save a lot of time."

Meng Weiyuan's eyes lit up. "Then ask quickly. If there is any, buy it immediately."

Meng Kexin nodded and immediately started communicating with 888.

"888, come out, I want to ask you something."

[Host, please tell me what you want to say.]

"888, is Mumbai in the mall a helicopter?"

[Of course you can, but it will cost 500 million credits. This helicopter is a state-of-the-art fighter jet with all the necessary features.]

When Meng Kexin heard about the latest combat power, her heart almost jumped out of her chest. She asked excitedly, "So what are our points now?"

[Return to the host, our current points are points]

"More than 10 billion?" Meng Kexin didn't expect that she would have so many points. This was really an unexpected surprise.

[Yes, host, so are you still going to buy the plane? ]

"Buy, buy, buy now." Meng Kexin was extremely excited.

[Host, please wait. Due to the huge consumption this time, the system has rewarded you with a driver. This driver is an all-round talent with extremely high combat power, first-class Qinggong, and all kinds of modern skills. Most importantly, he understands animal language.]

"What? What? What?"

"An all-round talent? Knows animal language?"

"Fuck! What the hell!"

“Buy, buy, must buy!”

Following Meng Kexin's order, an extremely cool helicopter was stored in the system transfer station, and at the same time a servant appeared in her space.

Meng Kexin told everyone the news. Ye Muyuan didn't have much idea about it, so he wasn't too surprised. But it was different for Meng Weiyuan and Qin Wanying.

They had all seen and flown airplanes before. Meng Weiyuan had even commanded aerial battles. They hadn't imagined that in this backward plane, they could actually fly. "Can it really fly?" Meng Weiyuan circled the plane several times, his eyes filled with curiosity.

Qin Wanying also looked forward to it. "If I could fly it back to the capital, it would definitely cause a sensation."

At this time, a man walked down from the plane and saluted everyone.

"Meet the master."

Meng Kexin introduced with a smile: "This is the pilot sent by the system. He will be the one flying the plane from now on."

Meng Weiyuan nodded, "Then let's set off immediately."

Ye Muyuan sent a message to Zan Feng, "Xin'er and I are going back to Wangyou Valley. You stay in the General's Mansion. Remember, you must let the outsiders know that I am in the General's Mansion. Remember!!!"

When Zan Feng received the message and saw the three exclamation marks, he realized how confidential the matter was and quickly replied with two words: "Yes, sir!"