Genshin Impact.

Lin Feng, Li Er and the old man went on their mission and experienced countless hardships and obstacles. At this moment, they came to an ancient city shrouded by mysterious power.

The city was surrounded by thick fog, making it difficult to see the true appearance of the city. Lin Feng looked at the tightly closed city gate, feeling an inexplicable sense of uneasiness in his heart.

Li'er said softly: "Brother Lin Feng, I feel like there's something weird about this city."

Lin Feng nodded and said, "But we have a mission, so we have to go in and find out what's going on no matter what."

The old man stroked his beard and said, "It's better to be careful."

The three of them slowly walked towards the city gate. When they approached, the gate opened automatically, and a stale and decayed smell came in. There was no one in the city, and the silence was frightening.

They walked carefully on the street, the houses on both sides were dilapidated, as if telling of their former glory. Suddenly, a sinister laugh echoed in the city.

"Hahahaha, you guys are finally here!"

Lin Feng shouted loudly: "Who are you, monster? Show yourself!"

At this time, a black shadow flew out from the darkness and rushed towards Li'er. Lin Feng was quick-witted and swung his sword to repel the black shadow. The black shadow fell to the ground and turned into a hideous monster.

The monster pounced again with its fangs bared. Lin Feng and Li'er fought side by side, while the old man cast a spell to help. Lin Feng's sword swung like lightning, and each strike was powerful. Li'er's spell shone brightly, illuminating the dark corners.

After a fierce battle, the monster gradually lost the upper hand. It suddenly roared, and its body began to swell, becoming even bigger and more ferocious.

Seeing this, Lin Feng concentrated his mind and injected all the immortal power in his body into the sword. The sword shone with dazzling light, and Lin Feng jumped up and stabbed at the monster's vital point.

Li'er also cast her strongest spell at the same time, and a beam of light hit the monster. Under the combined attack of the two, the monster finally fell to the ground and disappeared into a wisp of black smoke.

However, before they could catch their breath, the surrounding environment began to change. The streets became twisted and the houses collapsed one after another, as if the entire city was angry.

The old man said solemnly: "This is because the city's protective formation has been activated. We must find the center of the formation as soon as possible, otherwise the consequences will be disastrous."

The three of them were searching for the center of the formation in the chaos. With his keen intuition, Lin Feng finally found a stone emitting a strange light in the center of the city.

"This should be the center of the formation." Lin Feng said.

Just as they were about to destroy the center of the formation, another wave of monsters came from all directions.

Lin Feng did not flinch and shouted, "Li'er, protect the old man. I will deal with these monsters!"

He rushed into the monster group again, sword shadows flying, blood splattering. Li'er protected the old man with all her strength and provided magic support for Lin Feng.

In the fierce battle, Lin Feng was injured in many places, but his eyes remained firm. Finally, he successfully eliminated all the monsters and came to the front of the formation.

Lin Feng used up his last bit of strength and stabbed the sword at the center of the formation. With a loud bang, the center of the formation was destroyed and the city returned to peace.

They walked out of the city and continued on. Soon, they came to the foot of a high mountain. The mountain was shrouded in clouds and mist, and an ancient temple was faintly visible.

Lin Feng said: "Perhaps this temple contains the key clues to our mission."

They climbed up the rugged mountain road, which was so steep and difficult to walk on that if they were not careful they would fall into the abyss.

During the climbing process, Li'er accidentally stepped on empty air and was about to fall. Lin Feng was quick to grab Li'er and pull her up.

"Be careful, Li'er." Lin Feng said.

Finally, they reached the top of the mountain and entered the temple, where a mysterious statue was enshrined, emitting a mysterious light.

The old man looked at the statue and said thoughtfully: "This may be the answer we have been looking for."

At this moment, the statue suddenly moved, and a powerful force attacked them...