After hearing Sima Yan's words, Old Hu smiled mysteriously and explained: "I didn't tell you on the road before, I knew you would be resentful all the time. It would be okay to tell you, that the one just now was not a human..."

After hearing Lao Hu's words, Sima Yan couldn't help but change his face and said in a little horror: "No...isn't it human? What is that? Ghost! But...isn't it during the day now?"

He Jin and Lao Hu looked at each other, and immediately burst into laughter, patted Sima Yan on the shoulder and said, "Young master, don't be afraid, Lao Hu deliberately scared you. I don't know if there is a ghost in the world, but that person is definitely not a ghost!"

"It's not a human, nor a ghost? What is that?" After hearing He Jin's words, Sima Yan became even more confused. He scratched his head and said, "Don't keep it a secret, tell me quickly!"

Seeing Sima Yan's impatient look, Old Hu laughed even happier, then looked around and whispered: "Young Master, I told you that you are not allowed to spread it, otherwise, if the head of the family blames me, I will also be punished! The one who pointed the gun at you is an immortal!"

"Immortal... Immortal?" Sima Yan's first reaction was naturally not to believe it, but when he saw Lao Hu's swearing, he couldn't help but become suspicious. However, he seemed to remember something and said, "Since it's an immortal, why don't you know me? You almost killed me! Moreover, I looked at him with a dull look. Where is such an immortal?"

He Jin, who was on the side, then burst into laughter and said, "Old Hu, don't be happy with the young head of the family! Hahaha, when it comes to this existence, that's the foundation of my back mountain and even the entire Sima family. The young head of the family is not an outsider, so it's okay to tell you. Lao Hu's words are not completely right. Although he is not an immortal, he is a mechanical puppet created by the immortal!"

When Sima Yan heard this, his eyes showed a look of shock. How could a terrifying existence create such an existence with such an explosive combat power! Moreover, the things he created were so powerful, wouldn’t that immortal’s methods be superb?

Seeing Sima Yan's eyes showing shock, Lao Hu did not explain much, but looked at He Jin and smiled, and immediately took him straight to the military town.

However, after Lao Hu's quick explanation along the way, Sima Yan finally understood that there were three masters like the one he met at the gate of the back mountain. Moreover, what made Sima Yan's breathing was that according to Lao Hu, even Xu Meng, the most powerful in Houshan Army Town, could not last for three rounds under the opponent!

"Hehe, young master, our Sima family can gain a foothold in Changping Country, not just because of the relationship between the Six Kings! Today you are also a member of the back mountain. I don't need to hide these things from Lao Hu, and the Sima family is not just the people you see!" Standing in a courtyard, Lao Hu pointed to the large group of people who were thinking hard in the courtyard, and said proudly to Sima Yan.

"Did you see this? You have to call him uncle, young master! He has been here for thirteen years, and is responsible for the development of advanced attack equipment. He is in charge of thirty people under his command!" Lao Hu pointed to a thin middle-aged man and introduced. However, the other party seemed to have not noticed Lao Hu and Sima Yan at all, and was looking at a long round stick in front of him with concentration.

Ignoring the other party, Lao Hu continued to point his hand and said, "This is the manager of my crossbow machine camp who is specialized in producing crossbow machines. Huh, in terms of seniority, it's your grandfather!"

As if he heard Lao Hu's voice, the old man in purple who was supervising and commanding looked up, nodded slightly, and said, "Old Hu, you're here. Did something big happen this time? Why did you suddenly add so many siege crossbows? Huh, you have to apply to the general and allocate another hundred people, otherwise the construction period would probably be delayed!" As for Sima Yan on the side, he was automatically ignored by the other party.

Lao Hu nodded and said, "Okay, I will ask the general for instructions. Your progress cannot be settled!" After that, he then withdrew his gaze and looked at Sima Yan with a little depressed look and said, "Hehe, you have seen it too, young master. They are all very busy, so they won't pay attention to some small etiquettes at all. Don't blame them."

Sima Yan nodded. Although he was not old, under the influence of his father, he still knew these human feelings and worldly styles. He immediately said: "It's okay, the family needs such talents, each performing their own duties and positions to ensure their prosperity! Ah... But, I'm here, what should I learn here?"

Old Hu smiled and waved his hand and said, "You don't need to learn. In three days, follow the large army and you will know everything! After all, the battlefield is the most tempering place!" Speaking of this, Sima Yan clearly saw the light of yearning in the other party's eyes.

After a while of silence, Lao Hu looked at Sima Yan, laughed and said, "Since you are here, go with me to inspect the batch of crossbows we have newly produced!" After that, two soldiers dressed in entourages immediately led the way, leading Lao Hu and Sima Yan to a school martial arts field not far away.

At this time, there were already people on the school martial arts field. A row of huge siege crossbows with huge wheels lined up. Three hundred meters opposite them was a thick long wall of five meters high, with city gates, women's walls, stents, corner towers, horse faces, urns, and arrow towers all available, and they were completely imitated in the style of the city wall.

"The last general will meet General Hu!" After seeing Lao Hu and Sima Yan coming, a middle-aged soldier with black faces came over and bowed.

Lao Hu nodded and said, "General Wen, have these siege crossbows been accepted? What's the situation?"

General Wen nodded and said, "According to the general's military order, this batch of siege crossbows has focused on strengthening the penetration defense capabilities, which has increased the power of siege crossbows produced before by 30%. Please check it out!" After saying that, a red flag in his hand immediately waved.

"Buzz..." A neat buzzing sound suddenly came, and the originally quiet huge siege crossbow suddenly started, and the arrow shaft as thick as an adult's arm shot out neatly like a meteor, drawing a perfect arc in the sky, and then instantly shot on the city wall three hundred meters away.

"Boom!" A loud bang came, and the originally tall city wall suddenly became smoke and dust. The city wall more than five meters high was now more than two meters short. Sima Yan could vaguely see some thick arrow shafts still nailed to the foot of the city wall. The long arrow shaft was shaking violently, making a buzzing sound that made people's scalp numb.

………………………………………
Chapter completed!