Rise of the Otherworld.

The dark force surged towards them like a surging tide, bringing with it a suffocating sense of oppression. Darkness instantly enveloped the entire passage, as if consuming all light. The force contained an endless evil and coldness that froze the very bones of the human body.

Lin Yu bore the brunt of the attack. He roared, pouring all his spiritual energy into his sword. The sword instantly shone brightly, like a blazing sun bursting forth in the darkness. The light was brilliant and dazzling, carrying an unyielding will and resolute courage. He faced the dark force head-on.

"Bang!" The two collided, making a huge sound, as if the world was shaking. The sound waves surged in the passage, causing pain in everyone's eardrums. Lin Yu only felt a huge force coming, and that force was like a heavy hammer, hitting him hard. His body involuntarily retreated, and his feet left two deep marks on the ground.

"Master!" The disciples exclaimed. Their voices were filled with worry and anxiety, and their eyes were fixed on Lin Yu, fearing that he would make any mistakes.

Lin Yu gritted his teeth and stood firm, a trace of blood flowing from the corner of his mouth, but his eyes remained firm, staring at the black shadow, "Let's all attack together, I don't believe we can't defeat him!" His voice was full of anger and indomitable spirit, as if it was a challenge to fate.

Everyone responded in unison, their eyes ablaze with fighting spirit. They unleashed their strongest attacks, and for a moment, a multitude of lights intertwined. There was the scorching heat of fire, the cold of frost, the fury of thunder and lightning, all converging into a powerful force that defied the forces of darkness.

Seeing this, the shadowy figure sneered and waved its hands, its dark power growing stronger. Like a living creature, the darkness lunged at the group with fangs and claws bared. Gradually, it suppressed their attacks, leaving them breathless and each step forward incredibly difficult.

"Hmph, you think you can go against me!" the shadow taunted. His voice echoed in the darkness, filled with endless contempt and disdain.

Lin Yu frowned, feeling extremely anxious. He knew that if this continued, everyone would be in dire straits. Sweat slid down his forehead and dripped into his eyes, causing a stinging sensation, but he had no time to care.

Suddenly, a flash of inspiration struck him, and he remembered an ancient secret technique that he had acquired by chance but had never had the chance to practice.

"Everyone, listen to my instructions and stand in the specified position!" Lin Yu shouted loudly. His voice was urgent and firm, leaving no room for doubt.

The disciples followed his instructions without hesitation, changing positions quickly. Although their movements were slightly slowed by fatigue and tension, each one gave his all.

Lin Yu muttered something, pointed the sword in his hand at the sky, and a mysterious rune appeared on the sword. The rune flashed with a strange light, and an ancient and mysterious power emanated from it.

Following Lin Yu's guidance, the power of the crowd seemed to converge into a torrent, breaking through the blockade of the dark power. The torrent was unstoppable, with an unstoppable momentum.

The black shadow's face changed, "How is this possible!" For the first time, a hint of panic appeared in his voice.

"Now it's our turn to fight back!" Lin Yu roared, leading everyone to attack the black shadow. His figure was like a flash of lightning, and he was in front of the black shadow in an instant.

The two sides engaged in a fierce battle, the passageway ablaze with light and surging energy. Every collision triggered a massive energy surge, sending rocks crashing down from the walls.

Lin Yu's sword attacked the black shadow like a gust of wind and rain, and the black shadow kept dodging and fighting back. The disciples also assisted with all their strength, and various spells and lights continued to shoot at the black shadow.

The battle entered a white-hot stage. Lin Yu and everyone else were exhausted, but they still gritted their teeth and persevered.

Who will emerge victorious in this duel? Will Lin Yu lead the group to defeat the darkness, or will the shadows trap them forever in this mysterious passage?