Genshin Impact.

After finding a way out of the impasse, Lin Feng, Li'er and the old man continued on their journey to immortality which was full of unknowns.

At this moment, they were in a dark forest, surrounded by strange fog, making it difficult to tell the direction. Lin Feng looked around vigilantly, holding his sword tightly in his hand.

"Everyone be careful, there might be something strange in the fog." Lin Feng said in a low voice.

Li'er nodded, and the light of magic in her hand appeared.

Suddenly, a sinister laugh sounded in the fog, making people feel creepy.

"Who?" Lin Feng shouted loudly.

A group of black shadows rushed out of the fog and rushed towards them. Lin Feng and Li'er quickly fought back, with sword shadows and magic lights interlaced.

After a fierce battle, they finally repelled the shadow. However, before they could catch their breath, the ground suddenly shook violently, and a huge python emerged from the ground, opening its bloody mouth.

Lin Feng and Li'er looked at each other and decided to join forces to perform powerful magic. They chanted something, gathered their magic power, and shot a dazzling light at the python. The light hit the python, and the giant python twisted its body in pain. But it did not retreat, but pounced on Lin Feng and Li'er more fiercely. Seeing this, Lin Feng and Li'er continued to perform magic, and started a life-and-death contest with the python.

During the fierce battle, Lin Feng discovered that the python's weakness was in its abdomen. He seized the opportunity, changed his sword technique, and stabbed the python's abdomen. Li'er understood and used all her strength to concentrate her immortal power on the tip of the sword and stabbed the python's abdomen.

Finally, the python was severely injured and collapsed to the ground. Lin Feng and Li Er took this opportunity to give the python a final blow and completely defeated it. As the python fell, the surrounding fog gradually dissipated, and the forest returned to tranquility. The three were exhausted, but with a determined light in their eyes, they continued on their immortal journey.

The python felt the pain and attacked them even more frantically. At the critical moment, the old man took action and used a mysterious magic to temporarily freeze the python.

"Go!" the old man shouted.

The three of them quickly fled the place.

After several days of traveling, they came to an ancient cave. It was said that the cave contained the secret book of supreme immortality, but it was also full of dangers.

Lin Feng walked into the cave without hesitation, and Li'er and the old man followed closely behind him.

There was a pungent smell in the cave and strange lights flickered on the walls.

"Watch your step." Li'er reminded.

Suddenly, countless traps appeared on the ground, and spikes emerged from the ground. Lin Feng used Qinggong to avoid the traps.

They continued to go deeper into the cave, encountering puzzles and mechanisms one after another. Lin Feng solved them one by one with his intelligence.

Finally, they came to the depths of the cave and found a secret book emitting powerful magical power.

Just as Lin Feng reached out to take the secret book, a powerful force pushed him away.

"It seems not so easy to get." said the old man.

The three of them joined forces again, trying to break free from the constraints of this force.

After some hard work, they finally succeeded in getting the secret book.

However, just as they were about to leave the cave, it began to collapse.

"Oh no, let's go!" Lin Feng shouted.

They ran desperately in the collapsed cave, and huge rocks kept rolling down behind them.

Eventually, they escaped before the cave collapsed completely.

"Next, we need to find a quiet place to practice this magical secret book." said the old man.

So, they started a new journey...