Liu Chuang named the crossbow cannon Tianleihuo, and the formula is strictly confidential. レ♠レ

Not to mention Cao Cao, even Liu Chuang's subordinates, not many people knew the origin of the Tianleihuo. After Huang Chengyan handed over the gunpowder formula, he accepted Zheng Xuan's invitation and devoted himself to compiling the Chinese classics of the Hundred Family Names and the Three Character Classics. In addition to Liu Chuang, only Zheng Xuan and Zhuge Liang knew that the Tianleihuo was related to Huang Chengyan. The reason why Zheng Xuan invited Huang Chengyan to compile the Chinese school was that he had the intention of protecting him. He learned about the gunpowder from Huang Chengyan himself and realized the impact of the gunpowder.

After the gunpowder was made, Liu Chuang quickly opened a workshop in Xinchang, Liaodong for production and processing.

The person responsible for the production of the thunder and fire in this heaven is Guan Hai.

The workshop is located in the barbaric land of Liaodong, and no one knows its existence. After the thunder and fire is made on that day, it will be handed over to the Mijia Trading Company. After many twists and turns, no one can figure out the true source of the thunder and fire and the production area.

Cao Cao asked Dong Zhao to inquire about the secret of Tianlei Fire, but naturally he had no gains.

Except for finding out a name, Dong Zhao had no clue.

Cao Cao closed his eyes and after thinking for a long time, he called Jia Xu, "Wenhe, I don't care what method you use or how much you will spend. In short, I want you to find out the origin of the Tianlei Fire for me and try to get the production method. Are you willing?"

Jia Xu was stunned and showed a look of hesitation.

This is a difficult task and extremely dangerous.

However, he also saw with his own eyes the impact of the Tianlei Fire. Therefore, Jia Xu was also very clear in his heart about what kind of impact would Liu Chuang bring to the battlefield? If the secret of the Tianlei Fire cannot be clarified as soon as possible, it will inevitably bring serious consequences.

Cao Cao gave him the matter instead of letting Dong Zhao take responsibility, which also illustrates the difficulty of the matter.

Taking a deep breath, Jia Xu whispered: "If your lord wants me to preside over the presidency, don't ask me, don't urge me... In addition, if you transfer your friend to me, I need his help. If your lord can agree to my request, Jia Xu is willing to take over this matter."

How could Liu Chuang not beware of such a magical thing?

Cao Cao also knew that even if Jia Xu came to preside over this matter, it would be impossible to find the answer in a short period of time.

He said in a deep voice: "I will leave this matter to Wenhe to host, and I will also ask Wenhe to do his best."

"Here!"

Jia Xu bowed to accept the order.

According to Cao Cao's idea, he withdrew from Anping and defended Julu.

After Liu Chuang got Anping, he could not continue to attack for a while... but he did not stop after arriving in Xindu. The first order he issued after entering Xindu was to let Zhang Liao, who was stationed in Qianqiu Pavilion, cross the river and attack.

At the same time, he appointed Shi Huan as a guerrilla general, set out confidently, and attacked Boluoting along the Jiang River.

Cao Cao ordered Cao Zhen to station troops in Mainland Ze to block it, but who expected that Liu Chuang's Tianlei Fire had been too powerful before, so that when Shi Huan set off a crossbow, Cao's army began to be defeated. When Shi Huan attacked, even if Cao Zhen tried his best to command, he could not stabilize the Cao army's formation.

But in fact, where did Liu Chuang get so many thunder and fire?

Hedong once and Guanjin once, almost consumed all the inventory of Tianlei Fire in his hands.
Chapter completed!