The princess arrives and the prosperous Tang Dynasty begins

After leaving the royal family's dispute, Lin Xiao and Li Xuan's adventures continued. They came to a place called "The Valley", where there are many mountains and beautiful scenery. It is said that deep in this mountainous area, there is a mysterious cave, which is said to lead to another world. For the two people who are determined to explore the unknown, this is undoubtedly a huge temptation.

One evening, they stopped at a small village in the valley and asked the villagers about the legend of the mysterious cave. An old man in the village told them that the cave was located in the deepest part of the valley, and the entrance was covered by dense vines and bushes. Many years ago, someone went in and never came back, but some people said that those who went in entered a strange world and gained endless wealth and knowledge.

"That cave is called the 'Lost Gate' in our village because those who went in never came back." The old man warned, "If you want to go there, be careful."

After listening to the old man's words, Lin Xiao and Li Xuan became more determined to explore. The next morning, they packed their equipment, took enough food and water, and set out into the depths of the valley according to the old man's instructions.

After several hours of climbing and trekking, they finally found the entrance to the cave covered by vines. The entrance was so narrow that it seemed like a narrow path that only allowed one person to pass through. Lin Xiao and Li Xuan encouraged each other and then carefully entered the cave.

The light in the cave was so dim that it seemed to be swallowed by darkness, and the air was filled with a damp smell that seemed to drown people. They lit torches and walked forward cautiously.

The passage in the cave twists and turns, seemingly endless, making people feel extremely scared. The walls are covered with strange mosses, emitting a faint light, like the twinkling stars in the night sky, lighting the way for them.

As they went deeper, the temperature in the cave gradually dropped, and Lin Xiao and Li Xuan had to put on coats to keep warm. Suddenly, they heard a low roar coming from the front, as if some huge monster was wandering deep in the cave.

"Did you hear that?" Li Xuan asked in a low voice.

"I heard you. Looks like we need to be careful." Lin Xiao nodded and clenched the torch in his hand.

They continued forward, being careful not to make any noise. After walking for a while, the cave suddenly became wider, and a wide underground hall appeared before them. In the center of the hall was a huge stone tablet, covered with ancient runes.

Lin Xiao approached the stone tablet and carefully studied the runes on it. These runes looked like some kind of ancient writing. He had seen similar records in some ancient books before.

"These runes seem to describe a portal to another world," Lin Xiao said, "We need to unlock the secrets of these runes to find the entrance."

Li Xuan also came forward and studied these runes with Lin Xiao. After some deliberation, they finally figured out the secret. It turned out that these runes were guiding a path to the deeper part of the cave. Only by following this path could they find the entrance to another world.

Following the guidance of the runes, they continued to move deeper into the cave. As they moved forward, the environment inside the cave became more bizarre, and many glimmering crystals appeared on the walls, as if guiding their direction.

Finally, they came to an ancient stone door. The stone door was engraved with complex runes, which looked like some kind of combination lock. Lin Xiao and Li Xuan once again used the rune knowledge they had learned before to unlock the code of the stone door.

As the last rune was unlocked, the stone door slowly opened, and a dazzling light shone out from behind the door, illuminating the entire cave. Lin Xiao and Li Xuan walked into the stone door and found themselves in a strange passage. The walls on both sides of the passage were inlaid with countless crystals, emitting a soft light, as if guiding them forward.

They walked along the passage for a few minutes, and suddenly a wide open space appeared in front of them. In the center of the space was an ancient stone bridge, and at the other end of the stone bridge was a door that was faintly visible and flashing with mysterious light.

"This must be the entrance to another world." Li Xuan said excitedly.

They walked across the stone bridge and came to the door that was gleaming with light. The runes on the door looked very complicated, and Lin Xiao and Li Xuan touched them carefully, trying to unravel their secrets.

Suddenly, the runes on the door emitted a dazzling light, and the door slowly opened. Lin Xiao and Li Xuan were sucked into the door by a powerful force, and a white light appeared in front of their eyes, and they felt as if they had crossed the boundary of time and space.

When they opened their eyes again, they found themselves in a completely different world. This world was full of strange sights, with huge and beautiful crystals suspended in the sky, all kinds of strange plants and flowers growing on the ground, and a mysterious fragrance in the air.

"This... is incredible." Lin Xiao exclaimed.

"We really traveled to another world." Li Xuan was also extremely shocked.

They explored this strange world and found many creatures and scenes they had never seen before. The plants and animals here all had some kind of magical power, as if they were full of magic.

In this strange world, they met an old man in gorgeous robes. The old man claimed to be the guardian of this world, and he explained the origin and history of this world to Lin Xiao and Li Xuan.

"This world is called 'Fantasy Land', a place full of magic and miracles." The old man said, "You can come here, which shows that you have extraordinary courage and wisdom."

Lin Xiao and Li Xuan told the old man about their adventures and how they came to this world. The old man smiled and said, "Your courage and wisdom are admirable, but to survive in this world, you need more knowledge and strength."

The old man took them to visit some important places in this world, including an ancient magic academy and a mysterious forest. In the magic academy, Lin Xiao and Li Xuan saw many magical magics and spells. They were very excited and decided to learn some basic magic knowledge here.

In the mysterious forest, they encountered many strange creatures and plants. The old man told them that these plants and creatures have powerful powers and can be used to make various potions and magic props. Lin Xiao and Li Xuan collected some precious plants and prepared to take them back for research.

Although the experience in the fantasy world was fascinating, Lin Xiao and Li Xuan knew that they had to return to the real world. The old man told them that only at a specific time and place could they find a passage back to the real world.

Under the guidance of the old man, Lin Xiao and Li Xuan came to a mysterious lake in the illusion. The lake water was clear and there was a huge crystal in the middle of the lake, shining with dazzling light. The old man told them that as long as they jumped into the lake and touched the crystal, they could return to their world.

Lin Xiao and Li Xuan followed the old man's instructions, jumped into the lake, and touched the huge crystal. In an instant, they felt a powerful force enveloping them, and a white light appeared before their eyes.

When they opened their eyes again, they found themselves back at the entrance of the mysterious cave. Although time seemed to have stopped in the illusion, only a few minutes had passed in the real world.

After leaving the cave, Lin Xiao and Li Xuan were filled with emotion. Not only did they see many strange sights in the illusion, but they also learned a lot of valuable knowledge and skills. This short adventure experience will become an unforgettable memory in their adventure career.

Lin Xiao said to Li Xuan: "This experience is really amazing. Not only did we see another world, but we also learned a lot of useful knowledge."

Li Xuan nodded and said with a smile: "Yes, this experience will become an important chapter in our exploration career. No matter what challenges we encounter in the future, we will not be afraid."