"You're a day later than you thought!"

In the blink of an eye, the time came to the evening more than ten days later.

Xu Huabiao finally met Hyun Eun Jing, Park Ji Yeon and Bae Joo Hyun in the military camp under Tongguan, as well as the 15,000 Luoyang army led by them.

"I encountered something on the way, so I was a little late." With a smile on her face, Xian Enjing said to Xu Huabiao, "Please punish the lord!" ”

"How can you be such a guilty general! It's really up to me to punish you, isn't it! Xu Huabiao's expression looked much more serious.

"Lord, this is also for a reason...... I'll tell you more about it later. Bae Joo-hyun hurriedly interjected next to him, "General Eun Jing not only has no fault, but has meritorious." ”

“…… You are a military judge, you say. Xu Huabiao shook his head gently, "Okay, since we have arrived, let's rest, two days later, we will officially attack Tongguan." It's been a long time here, and the siege equipment has been made enough to fight Chang'an. ”

"Yes, my lord." Xian Enjing nodded.

"That'...... Lord, I still have some things to report to you separately......" Bae Joo-hyun glanced at the people around him.

The eyes mainly fell on Zheng Xiuyan, who was listening.

"Looks like I'm in the way!" Zheng Xiuyan also noticed Bae Joo-hyun's gaze, shook her head with a smile, and stood up, "Then I'll leave first, and I'll see you tomorrow, Lord Hua Biao." ”

"Xiuyan, you go slowly." Xu Huabiao nodded with a smile.

Only Xu Huabiao, Bae Joo-hyun, and Lin Yun'er were left in the tent.

"Zheng Xiuyan is gone?" Bae Joo-hyun glanced at Lin Yun'er who was at the door of the camp tent and asked.

"Hmm. I went to the rear army with General Xian Enjing. Lin Yun'er glanced outside the tent, "Strange, what does General Eunjing have to say to Lord Xiuyan?" ”

"She deliberately lured Zheng Xiuyan away." Bae Joo-hyun shook his head, "Lord, let's go, let's go out of the camp." ”

“…… Yes? Oh! "Xu Huabiao is a little confused.

However, what Bae Joo-hyun said, he actually didn't believe it. Out of the camp, there should be something, right?

With such thoughts, Xu Huabiao and Lin Yun'er rode horses with Bae Zhuhyun, and left the barracks in the night.

To the north, it was less than a mile away.

Came to a hillside.

Before, this hillside was full of trees. It's just that Xu Huabiao and they have recently built siege equipment here, and a lot of trees on the mountain have been cut down......

War is really damaging to the environment!

Xu Huabiao looked at the devastation on the ground and sighed a little helplessly.

But it doesn't matter.

Importantly......

"Huh? Nora? How did you get back? ”

On the hillside, there was a rider wandering there, and Xu Huabiao recognized it at a glance as Quan Nara.

"My lord! There you are! ”

"Where's Lee Ji-eun?" Xu Huabiao frowned slightly.

"I've already arranged for a team of soldiers to send her back to Luoyang." Bae Joo-hyun interjected next to him, "Nala has more important things to do here. ”

“…… What the hell is it? Xu Huabiao's curiosity was completely aroused.

Following Quan Nara, the group walked up the hillside for a while.

And then.

“…… Why are you all here? Don't tell me the Divine Army is here! ”

Xu Huabiao looked at the people in front of him with a ridiculous expression.

Lin Zhenna, Li Jiaen, and several of them have been incorporated into the Shence Army, and they are all here.

The seven guards are so neat and tidy, Xu Huabiao is a little unaccustomed to it.

"Lord, here is what Lord Zheng Caiyan ordered us to escort all the way from Luoyang." The person who answered was Song Zhuxi, who should theoretically stay in Luoyang and protect Li Yunxi.

As he spoke, he handed over a roll of paper.

Obviously, a letter.

"What do I think of this? Light a torch. Xu Huabiao took the letter a little speechless.

"Lord Jung Chae-yeon said that this thing should be kept as far away from open flames as possible, so ......"

"......" Xu Huabiao immediately shut up.

To stay away from the fire, in Luoyang, there is only one thing.

And it's worth going so far to let the person you trust the most quickly send it over, and it's related to that kind of thing......

Xu Huabiao's gaze fell on the carriage covered with a pile of straw over there.

Jumped off his horse, walked over, and pulled away the straw.

A pitch-black and shiny thing with cold tentacles appeared.

"Childe, what is this?" Lin Yun'er looked at the strange thing that faintly appeared in the moonlight with a curious expression, and asked.

"If I knew that this thing was made, I wouldn't have let Baolan make so many siege equipment." Xu Huabiao sighed softly and turned to Song Zhuxi: "Is this the only one?" Don't have a few spherical pieces of iron? ”

"Underneath this iron pipe, there are four." Song Zhuxi replied: "There is also a box of balls made of gunpowder......

"Well, that's good! Very good! Xu Huabiao smiled and nodded, "This thing...... Have you tried it? ”

"Lady Caiyan said she tried it." Song Zhuxi nodded, "The power is said to be very terrifying. That's why she told us a thousand times......"

As she spoke, she glanced at Lin Zhenna next to her.

"It must be personally escorted and delivered to your lord, and you must not let Zheng Xiuyan know."

"Well done." Xu Huabiao nodded with satisfaction.

"Is this thing powerful?" Lin Yun'er became more and more curious.

"Well, that's it." Xu Huabiao thought for a while, "I don't want to sleep outside the city tonight." Yun'a, you go back, inform the army, and prepare for a night battle. ”

“…… Night fights? What is the night fighting method? ”

"Waiting a stone's throw away from the pass, I saw that the wall of Tongguan had collapsed, and rushed straight in."

"The city walls...... Childe, should you ...... again?"

"This." Xu Huabiao stretched out his hand and patted the black iron pipe, "It's the real divine thunder." ”

“……”

When Lin Yun'er looked at the iron pipe again, her gaze had changed.

……

"Lord, aren't you okay?"

In the blink of an eye, half an hour later.

Xu Huabiao was carefully calculating something under the torch held by Lin Narong.

And next to him, Bae Joo-hyun, who looked curious, asked.

"This has to be done carefully, or else...... Hehe, if it's wrong, it's far away. Xu Huabiao glanced at Bae Zhuhyun, and then drew a few more strokes on the paper.

"What is this? Why can't I understand it......" Bae Joo-hyun's head stretched out on the paper, looking at Xu Huabiao's large number of strange symbols, and his face was confused.

"It's called math." Xu Huabiao stuffed the paper into Pei Zhuhyun's hand, then clapped his hands, and asked Lin Narong behind him, "Is the mound ready?" ”

"Sister Jenna, they're buried...... It should be almost. Lin Narong pointed higher behind her.

"Hmm. Check it out. Xu Huabiao nodded, and then took Lin Narong and Bae Zhuhyun, who had a strange expression, and walked to the high place of the hillside.

The top of the mountain, a vacant lot.

"My lord, it's already set up, please see."

Seeing Xu Huabiao coming, Lin Zhenna pointed to the iron pipe buried in the middle of the clearing, on a mound of soil that had just been built.

Well, in fact, the scientific name of that thing should be called a cannon barrel......

"I'll adjust the angle, you can help." Xu Huabiao nodded, stretched out his hand, and took back the piece of paper just now from Pei Zhuhyun's hand, glanced at it, stuffed it again, and then walked to the side of the cannon barrel.

A group of people got to work.

It was like a sludge, and it was adjusted.

It's been a while.

"Well, okay, this time, it should be in the middle of the city tower of Tongguan...... Or a little lower, directly smash the gate of Tongguan. Xu Huabiao clapped his hands and knocked off the dirt and mud.

“…… And then what? Bae Joo-hyun is working hard to learn something she doesn't understand at all.

"And then? Are the soldiers on Yoo's side ready? Xu Huabiao asked the soldiers beside him.

"Back to my lord, I've been ready for a while. General Enjing personally led his troops to advance. It was Kim Yoo-jin who replied.

"Well, okay, then...... Come and witness the moment of miracles! ”

Xu Huabiao's face had an evil smile on his face......