Late at night, in Ampere's mansion, the quiet moonlight poured in through the window and shone in the silent hall. Mu Yu, the outsider, was placed in a guest room in Ampere's house. His eyes were fixed on the moonlight, and his heart was full of doubts and uneasiness. He always felt that this quiet night was hiding some secret that no one knew.

As he fell into deep thought, a shrill cry cut through the silence of the night, followed by chaotic footsteps and a cacophony of human voices. Mu Yu was startled and instantly understood what was happening. Without hesitation, he grabbed the sword beside him and rushed in the direction of the sound.

Mu Yu met the Assassin in the lobby of the mansion. He was wearing a black night coat, holding a sharp blade, facing Mu Yu, his eyes were fierce, and he looked at death as if he were at home. Mu Yu didn't have any extra nonsense, and rushed forward directly with his sword.

The fight between the two was fierce and ferocious, the sword light flickered, and the atmosphere was tense to the extreme. Mu Yu's swordsmanship is fierce, and every move and style reveals a decisive killing intent. And the assassin did not show weakness, his swordsmanship was as fast as lightning, and the attack was like a tidal wave.

In the midst of the fierce battle, Mu Yu suddenly found that the assassin's swordsmanship was somewhat familiar, and it seemed to be somewhat similar to the swordsmanship he had seen in the Ampere family. This discovery made him more certain about the Assassin's relationship with the Ampere.

While Mu Yu and the assassins were fighting fiercely, the news of the assassination of the Great Elder of the Ampere family had spread throughout the entire family. All the people panicked.

In the darkness, a figure quietly approached, his face deep and his posture vigorous, like a cheetah sneaking in the night. He was an assassin known for his agility and stealth, and was ready to strike a fatal blow at Mu Yu at the moment.

The Assassin disappeared into the darkness in an instant, his presence as if it were only a phantom. However, Mu Yu did not let his guard down. He closed his eyes and listened to the movement around him, like the wind in the field, keenly aware of the slightest strangeness.

Suddenly, a blinding golden light burst out of the darkness and pierced the night sky. It was the light of the assassin's sword, like the core of a poisonous snake, stabbing at Mu Yu viciously and quickly. However, Mu Yu did not panic, he raised his hand and waved, and a light purple thunder light flew out from the lightning sword, meeting the assassin's sword light.

The thunder light and the sword light collided in the air, stirring up a wave of qi, as if the night sky was torn apart. The surrounding ground trembled, and the grass and trees bowed their heads as if they were bearing the force of the blow.

Mu Yu clenched the Thunder Sword, and his figure instantly disappeared in place, appearing behind the assassin. He swung his sword and slashed out, the sword aura was like a rainbow, and the thunder roared. The Assassin was knocked back a few steps by the sword, but was not injured. A look of appreciation flashed in his eyes, and then he disappeared into the darkness again.

This battle, as if in a breath, has already decided the winner. Mu Yu stood in place, his sword pointing forward, and the tip of the lightning sword flashed with a faint thunder light, as if predicting the next round of attacks. The Assassin had lost his sight, and darkness seemed to be his best cover.

However, Mu Yu is not worried. He trusts his Leifa and trusts his instincts. He closed his eyes, as if his senses of hearing, smell, and even sensation had been brought to their utmost sensitivity. He was waiting for the Assassin's next attack.

Suddenly, another golden light burst out of the darkness, this time more fierce than before. Mu Yu opened his eyes in an instant, his gaze was like a torch. He rushed forward like a gale, his sword swinging a massive dragon of thunder. The Thunder Dragon roared and rushed towards the golden light, its power shaking the four wilds.

The Brontosaurus and the golden light collided in the air again, and this time the impact was even stronger. The grass was crumbling, the trees were trembling, and even the sky seemed to tremble. Mu Yu swung his sword again, splitting the golden light through a gap.

"Buzz!" Mu Yu's lightning sword was instantly unsheathed, and the electric light on the tip of the sword flickered, illuminating the surroundings. He leaped like a bolt of lightning through the night sky and slammed into the Assassin.

The assassin turned to one side and easily dodged Mu Yu's attack. He threw the dagger with his backhand, like a silver flash of light in the cold wind, straight to Mu Yu's throat. Mu Yu was not in a hurry, he swung the lightning sword, and the tip of the sword was filled with lightning, instantly forming an invisible force field, blocking the assassin's attack.

"Boom!" A sudden thunderclap rang out in the sky. Mu Yu swung his sword and slashed into the air, instantly drawing a thunderbolt. The thunderbolt seemed to come from the sky, and with the sound of thunder, it blasted towards the Assassins.

The assassin sneered, his body quickly floating back like a ghost, and at the same time, his hands quickly sealed, a dark energy rune. He recited a spell, and the dark energy instantly converged into huge dark arrows, counterattacking Mu Yu.

Mu Yu's face was not afraid, and the lightning sword swung again, and thunder and lightning flew out from the tip of the sword, turning into a power grid and intertwining in the air. He shouted: "Thunder Net! In an instant, the power grid shattered all the dark arrows one by one.

Then, Mu Yu's body moved again. He turned into several afterimages, moving quickly through the night. With each step, a deep footprint is left on the ground. His lightning sword arced through the night, like a meteor in the night sky.

At this moment, the dark clouds in the sky broke instantly, and a bolt of lightning galloped down from the clouds, striking directly at the black-clothed assassin. At the same time, Mu Yu opened his eyes instantly, and his gaze was as sharp as lightning. He leapt to his feet and charged at the assassin with his sword in hand.

Lightning and daggers illuminate the dark night sky. Mu Yu used the thunder method to make every blow have the power of thunder and lightning, and the black-clothed assassin retreated one after another. Finally, under the light of a thunderbolt, Mu Yu saw the opportunity and swung out a sword, and the sword qi was horizontal.

A flash of surprise flashed in the Assassin's eyes, and he spun forward at a rapid pace, skillfully avoiding Mu Yu's attack. However, Mu Yu's speed was even faster, and he instantly appeared behind the assassin, and the lightning sword slashed down like thunder.

"Boom!" Another thunderclap. The lightning sword collided with the Assassin's dark energy shield with dazzling sparks. A strong shock wave spread out in all directions, kicking up a cloud of dust.

The battle is in full swing, and the figures of the two are staggered in the moonlight, like two dancing ghosts. Each attack is accompanied by a mixture of thunder and cold light, as if performing a magnificent dance in the dark night.

However, the Assassins' attacks became more and more intense, as if they were about to drown out the herd rain. Mu Yu took a deep breath, and his heart suddenly became as peaceful as water. He recalled Master's teachings: "There is no amorphous pattern in the thunder law, and only with a clear mind can we harness its might." He closed his eyes and recited the mantra in his heart, and the thunder light around his body began to flicker rhythmically.

Suddenly, Mu Yu opened his eyes, and a trace of determination flashed in his eyes. He used all his strength to unleash a powerful wave of lightning strikes at the Assassins. The thunder pierced the night sky like a bolt of lightning, illuminating everything around it. The assassin was directly hit by the thunderbolt, and his body froze, and a trace of consternation flashed in his eyes.

Mu Yu instantly seized the opportunity, and the soft sword instantly turned into a cyan lightning bolt and stabbed straight towards the assassin. The Assassin's eyes widened, and his form seemed to dull at this moment. He watched as the cyan lightning stabbed at him, but he couldn't react.