Genshin Impact.

After going through many difficulties, Lin Feng, the old man, Amber and Li'er finally found the legendary treasure. However, when the door to the treasure slowly opened, what appeared before their eyes was not the imagined mountains of gold and silver, but a huge space filled with a mysterious atmosphere.

In the treasure room, strange runes flickered on the walls, and complex patterns were drawn on the ground, as if it was a huge formation. In the center of the space, there was an ancient stone platform, and on the stone platform was a yellowed book.

Lin Feng approached the stone platform cautiously and reached out to pick up the scroll. There were some strange symbols engraved on the cover of the scroll, which he could not decipher for a while. The old man walked up and observed it carefully, then said solemnly: "This seems to be an ancient secret book, but the contents may hide a huge secret."

Amber and Li'er also gathered around, curiously looking at the book in Lin Feng's hand. Lin Feng gently turned the page and saw an ancient text on it: "When treasure appears, disaster will come. Only by gathering the power of the five elements can the crisis be resolved."

Everyone looked at each other, not understanding the meaning of this text. At this moment, the treasure space suddenly shook violently, the runes on the wall became extremely dazzling, and a powerful force surged from all directions.

"Oh no, we seem to have triggered some kind of mechanism!" the old man said loudly.

Lin Feng quickly put the scroll into his arms and said, "Don't panic, let's try to find a way out."

They began to look for an exit in the treasure space, but the formation in the space seemed to be constantly changing, making them lost. Just when they were extremely anxious, a group of black shadows suddenly appeared in the space.

These shadows were blurry and exuded an evil aura. They quickly pounced on Lin Feng and the others. Lin Feng drew his sword and started a fierce battle with the shadows. The old man also cast a powerful spell, and rays of light shot out from his hands and hit the shadows.

Amber and Li'er were not to be outdone, and they all used their special skills. With the joint efforts of the four, the attack of the black shadow was temporarily resisted. However, the black shadow continued to emerge, as if it was endless.

While Lin Feng was fighting, he was thinking about countermeasures. He suddenly remembered the words in the book, and he had a clue in his mind.

"Old man, I think the appearance of these black shadows may be related to the secret of the treasure. We must gather the power of the five elements as written in the book to resolve this crisis!" Lin Feng said loudly.

The old man nodded and said, "What you said makes sense, but how do we find the power of the five elements?"

Lin Feng looked around, his eyes fell on the runes and patterns in the treasure space. He found that these runes and patterns seemed to have some connection with the five elements.

"Everyone, pay attention to these runes and patterns. I believe the clues to the power of the five elements are hidden in them!" said Lin Feng.

Everyone began to carefully study the runes and patterns around them. After some effort, they finally found some clues. It turned out that the five corners of the treasure space corresponded to the five elements: gold, wood, water, fire, and earth.

Lin Feng and the others quickly walked towards the corresponding corners. In the golden corner, Lin Feng found a gem that shone with metallic light; in the wooden corner, Amber found a green branch; in the water corner, Lier picked up a blue water drop; in the fire corner, the old man got a burning flame; in the earth corner, Lin Feng dug out a piece of yellow soil.

They gathered the power of the five elements together, and suddenly, a colorful light shone. Wherever the light went, the shadows disappeared. The treasure space gradually returned to peace.

However, the crisis was not resolved. When the colorful light disappeared, a huge stone door appeared in the treasure space. The stone door slowly opened, and a strong suction force sucked Lin Feng and others in.

When they opened their eyes again, they found themselves in a strange place. It was a barren desert, with the sun shining brightly in the sky and the heat unbearable. In the middle of the desert stood an ancient castle.

"It seems that this is the secret behind the treasure." Lin Feng said.

Everyone walked towards the castle. The gate of the castle was closed, but when Lin Feng brought the scroll in his hand close to the gate, the gate slowly opened.

The castle was filled with a decayed atmosphere, and ancient portraits were hung on the walls. Lin Feng and others walked cautiously in the castle, and suddenly heard a sinister laugh.

"Haha, you are finally here!" A dark shadow appeared in front of them.

Lin Feng looked carefully and found that this black shadow was the leader of the black shadows that appeared in the treasure space before.

"Who are you? Why did you set these traps?" Lin Feng asked angrily.

The black shadow sneered: "I am the guardian of the treasure. You greedy humans who try to steal the treasure must pay the price!"

After that, the black shadow attacked again. Lin Feng and others fought a desperate battle with the black shadow. During the battle, Lin Feng gradually comprehended the martial arts secrets in the book and his strength increased greatly.

After a fierce battle, Lin Feng finally found the flaw of the black shadow and stabbed the black shadow's vital point with a sword. The black shadow screamed and disappeared into a wisp of black smoke.

As the shadows disappeared, the treasures in the castle appeared before their eyes. This time the treasures were no longer mysterious secret books or dangerous mechanisms, but boxes of precious jewels and cultural relics.

Lin Feng and the others looked at the treasure in front of them, but they did not feel much joy in their hearts. They knew very well that this adventure made them understand that wealth was not the most important thing, but the friendship and growth gained in the adventure were what really mattered.

They left the castle with the treasure and embarked on a new journey...