Rise of the Otherworld.

Lin Yu had just received the secret book and magic weapon when the ruins began to shake violently, and rocks kept falling from above his head. He frowned, knowing that he had to find a way out as soon as possible.

He put the secret book and magic weapon in his arms and quickly ran back the way he came. However, the passage had begun to collapse, and the retreat was blocked. Huge rocks rolled down from above, raising a cloud of dust. Lin Yu dodged a huge rock and narrowly avoided it.

"Damn it!" He cursed, his eyes firmly observing his surroundings, looking for a new way to escape. At this moment, a huge crack suddenly appeared in the ground, and a powerful suction force came from it.

He stumbled and almost fell into it. Lin Yu quickly inserted his sword into the ground to stabilize his body. The sword rubbed against the ground, splashing a string of sparks. "What on earth is going on?" He was secretly anxious in his heart, and beads of sweat rolled down his forehead.

At this moment, the system prompted: "Host, the ruins seem to have triggered some mechanism, triggering a self-destruct sequence. There is a hidden passage ahead, which may be the only way to survive."

Lin Yu followed the system's instructions and found a narrow passage. The passage was filled with a pungent smell, and strange lights flickered on the walls, as if countless pairs of eyes were peeping in the dark.

Lin Yu walked forward cautiously. The ground under his feet was slippery and he would fall if he was not careful. Suddenly, he heard a sharp cry and saw a group of monsters shaped like bats pounced on him. Their teeth were as sharp as blades, and the flapping of their wings brought a gust of fishy wind.

Lin Yu swung his sword to block, and the sword shadow flickered like a silver light curtain. Each sword accurately pierced a monster, and blood splattered instantly. But there were so many monsters, and they kept coming, as if endless.

Lin Yu thought to himself: "This is not a solution. We must find their weaknesses."

While fighting, he observed the monsters' movements. These monsters were extremely fast, and their flight paths were irregular. But Lin Yu keenly discovered that whenever the light shone into their eyes, their movements would pause for a short time.

Lin Yu immediately cast a spell, creating a powerful light. The light suddenly appeared, and the monsters were instantly blinded, their movements becoming sluggish. Lin Yu took the opportunity to swing his sword, slaying the monsters one by one like autumn wind sweeping away fallen leaves. In a moment, the monster corpses fell one after another, piling up like a mountain.

Lin Yu continued to go deeper into the passage, and every step was full of caution. Suddenly, rows of sharp spikes popped out from the ground. He jumped up suddenly, flipped in the air, and avoided this deadly trap.

But before he landed, another poisonous mist spurted out from the front. The green mist spread out, emitting a pungent smell. Lin Yu quickly covered his mouth and nose, circulated the spiritual energy in his body, and formed a layer of shield to isolate the poisonous mist.

Then, another boulders fell from above his head, and the huge rocks hit him with a force of ten thousand kilograms. Lin Yu's figure was as fast as lightning, dodging left and right, and shuttled through the narrow passage.

After walking for an unknown amount of time, Lin Yu finally saw a ray of light, which was the direction of the exit. He was overjoyed and rushed out quickly.

However, the scene outside surprised him. He had come to the edge of a cliff, with a bottomless canyon below. The wind was howling, making his clothes rustle.

At this time, the collapse of the ruins became more and more violent. The passage behind him had completely collapsed, and rocks continued to fall into the canyon, making a dull sound.

Lin Yu had no way to retreat. He took a deep breath, a trace of determination flashed in his eyes. He cast a flying spell, the spiritual energy in his body surged wildly, and his body slowly rose.

In mid-air, he felt his spiritual energy being consumed immensely, his body growing heavier. But he gritted his teeth and pressed forward. Every inch he advanced seemed to exhaust all his strength.

Finally, Lin Yu successfully flew to the opposite mountain, his legs softened, and he collapsed to the ground. He was breathing heavily, and his chest was heaving violently, like a bellows.

"I finally escaped." He looked at the crumbling ruins in the distance, his heart filled with emotion. The ruins hid countless dangers and unknowns, but he managed to survive with his tenacious will and indomitable spirit.

After this thrilling experience, Lin Yu decided to find a safe place to rest. He dragged his tired body and searched for a suitable cave in the forest. Finally, he found a hidden cave and walked in.

The cave was dark and damp, but Lin Yu didn't care about much. He sat down against the stone wall, took out the secret book and magic weapon from his arms, and began to study them carefully.