I was engaged in infrastructure construction in the Han Dynasty [Transmigration Book]

The neatly bundled briquettes were placed on the catapult, making Li Buyan and Wei Buyi a little puzzled, what can the briquettes be used for?

Wei Buyi quickly found his place, and said in a low voice, "Your Highness, there are no plants here, and...it is summer now."

Wei Buyi's meaning is very clear, there are few plants on the Gobi, and there is a lot of water in the plants in summer, even if they use briquettes, they may not be able to ignite.

Liu Tan took a deep breath: "You don't understand."

Li Buyan and Wei Buyi didn't dare to refute, anyway, sometimes they really don't understand what his Highness does.

But out of trust in Liu Tan, they decided to wait.

However, after waiting for a long time, there was no movement. The original atmosphere was tinged with a tragic color because of Liu Tan's words just now. Everyone thought that after His Royal Highness the King of the Northern Realm finished speaking, he should draw his sword and shout: "Chong."

Then they rushed out to fight the Huns to the death.

As a result, everyone's fighting spirit was mobilized, but they waited in place for a long time, and now everyone was at a loss.

Li Buyan asked quietly: "Your Highness, what should we do now?"

Liu Tan frowned slightly: "What's going on? Why is there no news now? It's impossible for the Huns to bypass the mine."

Coal mines occupy a large area, and the Xiongnu would have to go a long way to avoid them. How could it be easy to drive straight in?

Not long after, Liu Tan moved his ears and suddenly asked, "Did you hear footsteps?"

Li Buyan and Wei Buyi moved their ears, and they both heard the sound of chaotic footsteps, and they immediately determined that it was not the Xiongnu.

Wei Buyi immediately ordered: "Come on, go ahead and investigate."

Then the scouts brought back the embarrassed Weiden and the Hun captives behind him.

Liu Tan was pleasantly surprised when he saw Wei Deng, not only him, everyone was surprised, but after seeing the Hun captive obediently following behind him, everyone was dumbfounded.

What's the situation?

Wei Deng was brought in front of Liu Tan. This was the first time he looked at Wei Deng carefully, and found that Wei Deng was obviously two years older than him, but because his eyes and face were round, it added a bit of childishness. Like a boy of fourteen or fifteen.

Wei Deng was also very excited after seeing his brother, but he still remembered talking to Liu about greetings.

Liu Tan asked, "How is the situation at the mine?"

Now is not the time to talk about the past, let's wait until the end.

Wei Deng said with a vicious look on his face: "Don't worry, Your Highness, I set up an ambush in the mine, and I will definitely make it difficult for them!"

Liu Tan raised his eyebrows, setting up an ambush in the mine?

This matter is definitely not something Weiden can do alone, so those prisoners...

Before he could speak, Wei Buyi asked, "These captives have been following you?"

After hearing this, Wei Deng proudly raised his chest: "Yes, we also killed many Huns!"

Liu Tan was stunned: "You were the ones intercepting the Huns just now?"

Wei Deng nodded excitedly, but soon withered again: "It's a pity that we are too small to stop the Huns, so we have to withdraw first."

Liu Tan asked, "How many Huns are there?"

Wei Deng looked solemn: "Your Highness, the Huns have about two thousand forwards, but I heard that there are still teams rushing here behind, and Wushilu is behind."

Li Buyan gasped: "Wu Shilu is really here? No, who did you listen to?"

Wei Deng pointed behind him: "They."

Everyone was taken aback for a moment, and the Huns captives shrank a little from the eyes of everyone, but they still stayed there obediently.

Liu Tan didn't know why these people provided information or where they got the information from, but he still insisted that he would rather believe it or not: "Wait, I will find a way to kill the Xiongnu vanguard, you two go to Take the men and horses to prepare for the outflanking, you don’t ask how many people you kill and you don’t ask for prisoners, just show your momentum and drive them away.”

Both Li Buyan and Wei Buyi hesitated: "But beside His Highness..."

Liu Tan said calmly, "If you're worried about me, stop the Xiongnu there."

The expressions of Li Buyan and Wei Buyi suddenly became firm.

Wei Deng on the side was quite eager to try but didn't dare to open his mouth. Liu Tan didn't ignore him. He turned to Wei Deng and asked, "Can you still fight?"

Wei Deng's eyes lit up: "Yes!"

Liu Tan nodded: "Okay, you take your team around to see where you need help, and be more flexible."

Wei Deng froze for a moment: "My team?"

Liu Tan pointed at the captives: "Aren't these?"

Li Buyan was suddenly surprised: "Your Highness, these..."

Liu Tan waved his hand: "I don't care what happened in the past. Now they have worked hard to guard the big man. I will let go of my doubts for the time being. You are too. But Wei Deng, you have to be optimistic about them. Once you find something is wrong, don't be soft, you know?"

Weiden nodded vigorously.

Wei Buyi on the side didn't say a word, this matter is a bit dangerous, but how can it be dangerous in the army?As long as Wei Deng seizes this opportunity, he can be promoted at the speed of light.

What's more, His Royal Highness didn't arrange important missions for him. In case of danger, he can protect himself first without thinking about missions.

After Liu Tan gave his orders, he waited quietly. Li Buyan and Wei Buyi were also waiting, waiting to see how Liu Tan would kill the vanguard of the Huns.

Liu Tan waited for a long time, and finally waited for the smoke to rise, and he said, "Light it up, let it go."

The catapult moved quickly, and the briquettes on it immediately turned into a blazing fireball after being ignited. As the catapult started, a huge fireball was thrown towards the mine.

Li Buyan suddenly realized: "It turns out that His Highness wants to use coal to stop them, but... coal burns a bit slowly, they may not take it to heart."

The mine is so big, just a few fireballs can't ignite the whole mine for a while, and the Huns can still go around.

Liu Tan hooked the corners of his lips, and that smile was a little nervous against the backdrop of the fire: "They'd better not worry about it, just wait."

Wei Buyi asked, "Your Highness, shall we set off now?"

Liu Tan narrowed his eyes slightly: "Wait a little longer."

What are you waiting for?

Before this sentence was asked, everyone heard a huge explosion from the mine.

The sound of the explosion startled everyone's horses. Fortunately, the army horses are more docile, otherwise their team might be in chaos at this time.

As the first explosion sounded through the sky, there were several consecutive explosions that made everyone feel that the earth seemed to be shaking.

Liu Tan held the rein tightly and waited until the sound of the explosion gradually diminished and disappeared, then raised his chin and said, "Go."