Ying Zheng nodded approvingly: "Han Fei is right. How about this, since Wang Li and Meng Tian are going to Zhao to demonstrate their power, why don't they take some homemade bombs with them to test their effectiveness?" He looked intently at the wicked man, "If the trip goes smoothly, it can be rolled out on a large scale."

"Your subject obeys!" the wicked man replied, clasping his hands in a fist salute, already having a complete plan in mind.

After the court session ended, the officials continued to discuss the events of the moment. Some praised the Qin army's might, predicting it would grow even stronger, while others worried about the danger of the improvised explosive device. The discussion about the homemade bomb quickly spread throughout Xianyang.

Upon returning to the Grand Commandant's residence, the wicked man immediately summoned Xiangli He, Zizhen, and others to discuss and plan the next steps.

"Gentlemen," he said solemnly, "His Majesty has granted us permission to test the homemade bombs in Zhao territory. We must now accelerate production and strive to complete the first batch within half a month. Strict quality control must be maintained throughout the production process; quality over quantity is paramount."

"Rest assured, Grand Commandant," Zizhen said confidently. "I have made meticulous arrangements in terms of personnel selection and material preparation, and I will certainly live up to your expectations."

As dusk fell, the wicked man sat alone in his study, reviewing experimental data. The moonlight outside the window was like still water, and the events of the day replayed in his mind. Each explosion foreshadowed a dramatic shift in the nature of warfare.

"Let the Zhao Kingdom taste this flavor first," he muttered to himself. "When the technology is more advanced, the whole world will tremble for China!" Thinking of this, the corners of his lips turned up slightly.

"Grand Commandant, Wang Li. Meng Tian requests an audience." Zhang Erhe's voice came from outside the door.

"Let him in."

Wang Li and his companion strode inside, their eyes gleaming with excitement: "Big brother, where's that homemade bomb? I really want to see its power!"

The wicked man put down the bamboo scroll, his expression serious: "Don't be impatient. I'll teach you how to use it over the next two days. Although this thing is very powerful, you can easily injure yourself if you're not careful. I'll have Xiang Lihe teach you how to ignite it with the fuse, as well as the precautions for storage and transportation."

"Yes, elder brother is right." The two men suppressed their excitement. "We will certainly remember this and will never let elder brother and the king down."

As the night deepened, the lights in the Grand Commandant's mansion remained bright. The wicked man gazed at the deep night sky outside the window, as if he could already see the future where the Qin cavalry would be invincible.

"Soon...soon, it will be the world's turn to tremble because of China," he murmured to himself.