Awesome! My best friend traveled through time and space and became the infrastructure queen

Bingsan drove the carriage out of the city with Sun Liangyuan.

It was pitch black outside the city and shrouded in fog. The snow had not completely melted yet, so the road was slippery with ice and everyone walked very slowly.

When they arrived at the expected designated location, Su Chengnan had already reached the top of the city wall.

"Miss, why are you here so late?" The deputy general beside Zhong Yinghan hurried over and asked.

Ever since Su Chengnan effortlessly controlled the Second Prince of the White Bear Kingdom and Han Liping, Zhong Yinghan and his subordinates had come to respect her greatly. Furthermore, her actions at the City Lord's Mansion were sufficient proof of her ability, and she worked very well with Zhong Yinghan, so their relationship was quite good. The warriors were convinced of her.

"I'm worried about Mr. Sun leaving the city to lay mines, so I've asked someone to escort him out of the city."

"Well, this is all thanks to you, sir. I heard that this thing is very powerful. I hope it can come in handy."

"That will definitely be of great use! Don't worry." Su Chengnan said this with great confidence.

She thought that as long as Ningguta could annihilate the enemy army when it arrived, the people behind would be terrified, which would be a powerful blow to the morale of the White Bear Country!

Fear is like a spark that can start a prairie fire. Once it appears, it will spread rapidly among the crowd, silently but deeply into the soul, and it is indestructible.

……

Outside the city, Sun Liangyuan got off the carriage.

Everyone else has already started picking up shovels and getting to work.

"Sir, is there anything special about this pit?" Qingshan asked.

"Of course! There's a pit every ten meters, and we need to dig three rows in a row. The arrangement must be neat and orderly." Sun Liangyuan rolled up his sleeves and prepared to do it himself.

Bingsan quickly snatched the shovel from his hand and said respectfully, "Sir, let me do it! We're good at these kinds of physical labor! You just stand by and watch. If you have any questions, feel free to ask."

Sun Liangyuan didn't bother to be polite with them and let them go.

When the first row of pits was almost dug, Sun Liangyuan carefully took out a simple wooden mine the size of a round cake from the box and prepared to put it in.

"Is this round cake a landmine? How powerful is it?" Qingshan squatted down and took a closer look.

Sun Liangyuan curled his lips and smiled, "This thing needs to be activated by weight. If a child steps on it, there's a high chance they'll escape. But if a warhorse carrying a grown man steps on it, it will explode immediately."

Qingshan raised his eyebrows, his breathing stagnated, his pupils gradually dilated, and he said excitedly: "Such a treasure is really unexpected! You are so talented, it is a blessing for Ningguta! It is also a blessing for Dayong!"

Sun Liangyuan placed the mine into the pit and slowly straightened his back. "Thank you! This thing was Miss Su's idea. If it weren't for her idea, I wouldn't have thought of making it this way."

"Ah?" Several secret guards were stunned and extremely surprised.

"Miss Su, she is a truly talented person!" Sun Liangyuan sighed.

The secret guards knew the eldest lady's character and talents, and although they were surprised, they were able to accept it quickly. However, the other busy people did not know Su Chengnan, so although they heard Sun Liangyuan's words just now, they did not feel much in their hearts.

Not only that, they even felt that Sun Liangyuan was exaggerating, just to please this young lady. Could this unassuming wooden round cake really have such great power? It couldn't be that possible.

"What are you thinking about! Be careful with what you have in your hands!" Sun Liangyuan scolded.

"Yes!"

Everyone came to their senses and quickly steady the slightly tilted pancake in their hands.

Sun Liangyuan was so angry that he frowned and cursed: "How many times have I told you! This thing must be handled with care! If you guys don't handle it well and it explodes and you lose your life, you will have no place to cry!"

"Yes, sir, we were wrong. We will be careful." The man bowed his head and apologized.

Sun Liangyuan glared at him fiercely, suppressed his anger and said, "When you bury it, you must leave a good fuse!" He demonstrated it again in person.

"Okay, got it." Everyone answered in unison.

After what happened just now, everyone became more cautious. No one continued to talk. Everyone was concentrating on their own work and working faster.

About an hour later, the group finally finished their work and headed back.

Su Chengnan, standing on the city wall, finally felt relieved.

……

Inside the White Bear Country’s army camp.

"Report!"

"Come in."

"General, there's been some activity in Ningguta. They've sent some people out, and they're digging something three miles from the city gate. It's too dark to see. I only know they've been there for about an hour."

"The Yong people are cunning, and they always have some strange prayer tricks." General Lei Shi said.

"Do we need to send people over to harass and investigate?" Zuo Xianfeng asked.

"No need! In the face of absolute strength, any action they take is in vain! Ningguta, we must win it." Lei Shi was extremely confident. He had attributed the last failure to the problem with Zuo Xianfeng. He believed that he would win.

In Lei Shi's mind, Ningguta was like a weak chick that could flutter a few times but could never make any big waves.

pity……

He was wrong.

Even a chick can change its fate.

……

woo-

As soon as the sky was getting light, the White Bear Country army blew the horn and began to attack!

"Not good! Not good!"

“They’re calling!!”

"Outside the city, a massive army is approaching! Someone just reported! Five thousand of them!"

After hearing this, Su Chengnan felt relieved.

Only five thousand people, not many.

She waved her hand. "Come on! Pass the order! The supply of wooden arrows and stones cannot be cut off. Everyone else, take your positions!"

"Yes!"

Su Chengnan glanced inside the space. The countdown hanging high above the space had stopped at twenty-five days and had not changed. She thought to herself, this would definitely not be the final battle.

"Miss, please stay in the City Lord's Mansion today."

"Yes, the front line is dangerous!"

The people in the yamen kept persuading her and stopped her from going out.

"During the Battle of Beiling, I was on the city wall the entire time! In terms of experience, I might even have more than you all, so there's no need to be too nervous."

"But……"

"No buts! Everyone's still not very familiar with the operation of large crossbows, so I'll oversee it myself. You stay in the city and coordinate personnel arrangements! Make sure to ensure adequate supplies and medical treatment for the wounded!"

"Yes! We obey orders!"

"Please be careful, Miss Su!"

"Okay! I will!" Su Chengnan bowed to everyone!

Then she waved her hand!

"Let's go! We will win this battle!"

"Must win!!!"

……