Rise of the Otherworld.

The footsteps were getting closer and closer, and everyone's heart was in their throat. Lin Yu signaled everyone to remain quiet, and he quietly approached the door, ready to respond to any emergency at any time. His breathing became slower, but his heartbeat became more rapid, and every nerve was tense, like a fully drawn bowstring.

The door flung open, revealing a group of men in black. Their faces were stern, their eyes brimming with murderous intent. Their gazes seemed to penetrate the soul, sending shivers down one's spine. They exuded a powerful aura, clearly well-trained masters.

"Who are you?" Lin Yu asked sternly, his sword ready. His voice was cold and resolute, with unquestionable majesty. The sword gleamed coldly in the dim light, as if telling of his determination.

The leader sneered: "Hmph, hand over the ancient books you got and I will spare your lives!" His voice was hoarse and low, full of threats.

Lin Yu's heart sank. It seemed that these people were coming for the ancient books. He glanced at these men in black and quickly thought of a countermeasure.

"Don't even think about it! This is what we have obtained after going through so much hardship." Lin Yu responded firmly. His eyes were burning with anger, and his hand holding the sword was slightly white because of the force.

The two sides were deadlocked, the atmosphere tense to the extreme. The air seemed frozen, time seemed to stand still. Everyone's breathing became heavy and suppressed, like the calm before the storm.

Suddenly, one of the men in black couldn't contain himself anymore and launched the first attack. Magical radiances intersected, and battle erupted instantly. Brilliant spells erupted like fireworks, illuminating the entire space.

Lin Yu flashed, charging towards the enemy. His swordsmanship was fierce, each strike carrying a killing intent. The sword in his hand transformed into streaks of light and shadow, as fast as lightning and as swift as the wind. His posture was nimble, weaving freely among the enemy's attacks, each strike of his sword accurately targeting the enemy's vital points.

Not to be outdone, Xiaoyaozi unleashed a powerful spell. He waved his hands, muttering something, and icicles appeared from thin air, shooting towards the man in black. Wherever the icicles touched, the air seemed frozen, bringing a biting chill.

The disciples also joined the battle, engaging in a desperate struggle with the men in black. Although they were slightly weaker, they were full of courage and determination. Each one fought with all his might to survive and protect the ancient books.

However, the black-clad men were powerful and coordinated well. Their attacks were continuous and uninterrupted, gradually putting Lin Yu's side at a disadvantage. One disciple was accidentally hit by the black-clad men and fell to the ground, his clothes stained red with blood.

"This is not a solution!" Lin Yu was anxious. His forehead was covered with sweat and his breathing became rapid. But his eyes remained firm, with no intention of retreating.

At this moment, Lin Yu discovered a flaw in the black-clothed men. It was a defensive loophole that they inadvertently exposed during the attack. Lin Yu was overjoyed and quickly winked at Xiaoyaozi.

Xiaoyaozi understood and launched a fierce attack with Lin Yu. Lin Yu rushed towards the flaw like a ghost, his sword as powerful as a rainbow.

The man in black was caught off guard and was thrown off balance by Lin Yu's attack.

Will the situation be reversed? Can Lin Yu and his team successfully repel these mysterious men in black?