Autobiography of Li Yunfei, a time traveler

Everyone gathered around the crystal ball, staring intently at the blurry images that kept changing in the crystal ball. The images were sometimes clear and sometimes blurry, as if trying to convey some important information to them.

"This seems to be telling the story of the castle's previous owner." Lin Ya said softly.

Li Yunfei nodded slightly, "Well, it seems that many unusual things have happened in this castle."

As the scene continued to unfold, they saw a fierce battle. Countless people in strange costumes were fighting in the ancient castle. The shouts and the sounds of weapons clashing seemed to come from across time and space.

"What kind of battle is this?" someone asked puzzledly.

Li Yunfei frowned and thought, "Maybe it's for the fight for this crystal ball, or for other secrets in the castle."

Just as they were trying to interpret these images, the crystal ball suddenly glowed brightly, and a dazzling light shot out, illuminating the entire basement.

Everyone subconsciously closed their eyes, and when they opened their eyes again, they found themselves in an illusory space. Everything around them became distorted, and in front of them, an illusory figure appeared.

"Who are you? How did you find this place?" the figure said in a low voice.

Li Yunfei looked at him warily, "We are adventurers who accidentally broke into this castle and are looking for the secrets of the castle."

The figure was silent for a moment. "Well, in that case, then you should accept my test. If you can pass the test, you will be qualified to know the secret of this crystal ball."

After saying that, the figure waved his sleeves, and the surrounding scene changed instantly, and they came to a foggy forest.

"Where is this?" someone shouted in panic.

Li Yunfei said calmly: "It seems that this is the test that the figure mentioned. We have to find a way to get out of this forest."

They began to explore the forest carefully, but the forest seemed to be full of dangers and traps. From time to time, strange creatures emerged from the mist and attacked them.

Li Yunfei, Lin Ya and others worked closely together to deal with these attacks while looking for a way out. After a difficult battle and exploration, they finally found some clues in the forest.

"Look, there are some marks there." Lin Ya said, pointing to the scratches on a tree.

Li Yunfei looked in the direction she pointed, "This should be left by someone on purpose. Maybe we can get out of the forest by following these marks."

They followed the markings and gradually the fog began to lift and they saw the edge of the forest.

"We're finally getting out." someone said excitedly.

However, just as they were about to walk out of the forest, a huge monster suddenly rushed out from the side and blocked their way.

"Oh no! It's the guardian of this forest." Li Yunfei shouted.

The monster roared and rushed towards them. Li Yunfei and others immediately deployed their troops and started a fierce battle with the monster.

The monster was very powerful, and they had to work hard to gradually gain the upper hand. In the end, with everyone's concerted efforts, they successfully defeated the monster.

As the monster fell, the scene before their eyes changed again and they returned to the basement.

The illusory figure appeared again, "Yes, you have passed the test. Now you are qualified to know the secret of the crystal ball."

Then, the figure began to tell them the origin of the crystal ball and the secrets contained in it...