"Pass the order down, block the entire city, search thoroughly, and make sure to find the murderer!" Ying Yuan's voice was cold and firm, with unquestionable majesty.

"Yes!" Gai Nie took the order and left.

Ying Yuan stood alone beside Li Si's body, his heart filled with grief and anger. He vowed to bring the murderer to justice and avenge Li Si!
In the following days, the whole city of Xianyang was shrouded in a tense atmosphere. Soldiers searched house by house and questioned every suspicious person, but they still found no clues.

Ying Yuan stayed in the imperial study every day, reviewing memorials and handling government affairs, but he could never concentrate. Li Si's death weighed on his heart like a huge rock, making him breathless.

One night, Ying Yuan was walking alone in the imperial garden, hoping to relieve the pressure in his heart. The night was deep, and the moonlight was like water, sprinkling on the flowers, plants and trees, making it seem particularly quiet.

Suddenly, Ying Yuan heard a faint sound of footsteps. He turned around abruptly and saw a dark shadow standing not far away.

"Who's there?" Ying Yuan shouted sternly.

The shadow did not answer, but rushed towards him quickly. Ying Yuan immediately drew the sword at his waist and blocked the shadow's attack.

The two engaged in a fierce fight under the moonlight. The black shadow's martial arts skills were extremely high, and his moves were strange, so Ying Yuan was unable to take him down for a while.

"Who are you? Why do you want to assassinate me?" Ying Yuan asked sternly while resisting the attack of the black shadow.

The black shadow still did not answer, but just sneered and then increased the speed of attack again.

Ying Yuan gradually felt that he was overwhelmed. The black shadow's sword moves became more and more fierce, and some wounds began to appear on his body.

At this moment, Gai Nie suddenly appeared and joined the battle. With Gai Nie's help, Ying Yuan's pressure was immediately relieved a lot.

The two joined forces and finally forced the black shadow into a desperate situation. Seeing that the situation was not good, the black shadow suddenly threw a smoke bomb, and then took advantage of the smoke to escape.

"Damn it!" Ying Yuan punched the ground, feeling full of resentment.

Gai Nie walked up to him and comforted him, "Your Majesty, don't be angry. We will catch him sooner or later."

Ying Yuan took a deep breath and tried to calm himself down. He looked at Gai Nie and suddenly asked, "Mr. Gai, do you feel that this assassin's martial arts style is somewhat familiar?"

Gai Nie pondered for a moment and said slowly: "Your Majesty, I also feel somewhat familiar with it, but I can't remember where I have seen it at the moment."

A thought suddenly flashed through Ying Yuan's mind, and his face turned pale in an instant.

"Could it be...could it be him?"

Ying Yuan's face turned pale, and his lips trembled slightly. "Could it be... Wei Zhuang?"

Gai Nie was also shocked. Wei Zhuang, another descendant of Guigu Zongheng, was from the same school as him, but he took a completely different path. Wei Zhuang was a master of swordsmanship and ruthless. He was indeed capable of assassinating Li Si, and his swordsmanship was quite similar to that of the assassin just now.

"Your Majesty, I will investigate this matter thoroughly right away." Gai Nie said with a bow.

Ying Yuan waved his hand, "No need, I have already made up my mind." He paused, a fierce look flashed in his eyes, "Pass on my order, summon Wei Zhuang to the palace!"

Three days later, Wei Zhuang, dressed in black, stood in the hall with a sword on his back. His eyes were cold and expressionless, and he did not take Ying Yuan seriously at all.

"Wei Zhuang, do you admit your guilt?" Ying Yuan's voice was like ice, echoing in the hall.

Wei Zhuang sneered, "Your Majesty, why do you say that? What crime have I committed?"

"Li Si's death was caused by you?" Ying Yuan looked Wei Zhuang in the eye and said in an aggressive tone. Wei Zhuang remained calm and said, "Your Majesty, you can eat whatever you want, but you can't say whatever you want. I have nothing to do with Li Si, why did you kill him?"

"Humph, do you think I don't have evidence?" Ying Yuan snorted coldly, "The sword technique used by the assassin that day is exactly the same as your Quicksand Sword Technique. What else can you quibble about?"

Wei Zhuang's eyes flashed with a barely perceptible panic, but he quickly regained his composure, "Your Majesty, the Liusha sword technique is not unique to me. There are many practitioners in the world. Just because the sword techniques are similar, it is too arbitrary to conclude that it was done by me, isn't it?"

Ying Yuan was silent for a moment. He knew that this alone was not enough to convict Wei Zhuang. He waved his hand, and two guards came up carrying a stretcher covered with a white cloth.

"Wei Zhuang, look at what this is?" Ying Yuan said, pointing at the stretcher.

Wei Zhuang frowned slightly, walked to the stretcher, and reached out to lift the white cloth.

Under the white cloth, there was a corpse. It was the assassin who had fought with Ying Yuan and Gai Nie that day.

"Do you know this person?" Ying Yuan asked.

Wei Zhuang carefully examined the body, and after a moment, he shook his head, "I don't know him."

"The clothes this person is wearing are Liusha's standard uniforms. How dare you say you don't recognize them?" Ying Yuan's voice rose a few notches.

Wei Zhuang's expression finally changed. He didn't expect Ying Yuan to find the body. He was silent for a moment and said, "This man is indeed a member of Liusha, but I don't know why he wanted to assassinate Li Si."

"Humph, you're still quibbling!" Ying Yuan shouted angrily, "Come here, arrest Wei Zhuang!"

The two guards immediately stepped forward and tried to take Wei Zhuang down. Wei Zhuang snorted coldly, drew the shark-tooth sword from his waist, and forced the two guards back.

"Your Majesty, if you want to accuse someone of a crime, you can always find a pretext! Since Your Majesty is determined to force the charges on me, I will have no choice but to fight you to the end!" Wei Zhuang's voice was cold and resolute.

After saying that, he swung his sword towards Ying Yuan. Seeing this, Gai Nie immediately drew his sword to meet him, and the two of them started a fierce fight in the hall.

Wei Zhuang's swordsmanship was fierce and ruthless, and every move was deadly. Gai Nie's swordsmanship was steady and restrained, and he used defense as offense. The two of them fought back and forth, and the swords flashed, and it was difficult to tell who would win.

Ying Yuan sat on the dragon throne, watching the two men fight with a cold eye, his heart was calm. He knew that the outcome of this battle would determine the future of the Qin Dynasty.

The battle lasted for a long time, and Wei Zhuang gradually felt overwhelmed. Gai Nie's swordsmanship became more and more sophisticated, and some wounds began to appear on his body.

At this moment, a burst of shouting and killing suddenly came from outside the hall.

"What's going on?" Ying Yuan asked with a frown.

A guard ran in in a panic and fell to his knees, "Your Majesty, something terrible has happened! The people from Liusha have invaded the palace!"

Ying Yuan's face changed drastically. He didn't expect Wei Zhuang to be so bold that he dared to attack the palace directly.

"Gai Nie, there's no need to bother with him anymore, go and quell the rebellion!" Ying Yuan ordered.

Gai Nie nodded, glanced at Wei Zhuang, then turned and left.

Wei Zhuang sneered and took the opportunity to escape from the hall. (End of this chapter)