"Your Highness, I have something to report." Shangguan Ziqi put Yu Yuanzheng down and said excitedly.

"Oh? Have you two also found any clues?" When the prince saw the expressions of the two people, he knew that they must have discovered something.

"Yes, there are dozens of cypress trees on the hillside not far from here.

Madame found them arranged in a very regular pattern.

We have drawn the arrangement of the trees for Your Highness to review."

Shangguan Ziqi took out the piece of paper from his bosom and handed it to the prince, treating it as if it were a priceless treasure.

Prince Jing and Prince Rong both came over to watch. Rong Luo was also curious and leaned over as well.

"Earth!?" several people chanted at the same time.

"Your Highness, two princes, I was just about to say that if we add another horizontal line from that position on the cliff, it will form the word '天'." Rong Luo said, pointing to the cliff not far away.

Then he repeated his findings and guesses.

After hearing this, several people looked carefully at the place he pointed to.

We all practice martial arts and have good eyesight, and it is really as he said.

Only Yu Yuanzheng couldn't see so carefully.

The prince pondered for a moment, his eyes moving back and forth between the cliff and the word "地" in his hand, a gleam of excitement flashing in his eyes.

He turned to look at Rong Luo and asked, "Young Master Rong, how do you think we should fill in that horizontal line?"

Rong Luo replied respectfully: "Your Highness, from what I have seen, that horizontal line may not be a physical horizontal line, but may require some kind of mechanism to trigger it.

The cracks on the cliff and the water flow have formed a "人" character and a horizontal line. If we can find the mechanism at the top of the "人" character, we may be able to complete the "天" character and open the entrance to the treasure."

The prince nodded and turned his gaze to Prince Jing and Prince Rong: "My two uncles, what do you think?"

Prince Jing stroked a small tuft of beard under his chin, thought for a while and then said: "Young Master Rong's words make sense. We might as well give it a try."

"That's right. But the cliffs are steep and the traps are hard to find, so we need to be careful." Prince Rong also echoed.

"In that case, let's get started. Young Master Rong, you are proficient in Qimen Dunjia, so you will be responsible for finding the mechanism. Shangguan Ziqi, you are very good at Qinggong, take a few people with Young Master Rong. Two uncles, we will wait at the bottom of the cliff, if they accidentally fall down, we will help them."

Everyone responded in unison and took action.

Shangguan Ziqi, along with Rong Luo and several agile guards, slowly climbed up the cliff.

The cliff was steep and the rocks were slippery, so the men climbed very carefully, fearing that they would fall down accidentally. As Rong Luo climbed, he carefully observed the cracks and water flows on the cliff, trying to find clues to the mechanism.

Yu Yuanzheng stood below, looking up at them, feeling both nervous and expectant.

Although she did not understand these mechanical tricks, her intuition told her that the entrance to the treasure was right in front of her.

Suddenly, Rong Luo stopped moving and fixed his eyes on a crack. He reached out and gently touched the edge of the crack, and found a slightly raised rock there, which was slightly different from other places. He turned his head to Shangguan Ziqi and whispered, "Prince, there seems to be something different here."

Shangguan Ziqi took a closer look and found that the rock was different from the others, as if it was placed there artificially. He grabbed the protruding rock with one hand and pushed it with Rongluo. The rock actually sank slowly with a clear "click" sound.

At this moment, the water flow on the cliff suddenly changed.

The water that originally flowed downwards miraculously flowed upstream and gathered in the middle of the "人" shape, forming a water line across the cliff.

The waterline gleamed faintly in the sunlight, like a silver horizontal line, completing the character "人" (person) into a complete character "天" (sky).

"Found it!" Shangguan Ziqi exclaimed excitedly.

The prince and others below also saw this scene and showed surprise. The prince waved his hand, signaling everyone to be careful.

Rong Luo and Shangguan Ziqi continued to climb up and came to the top of the "天" character. There was a huge rock with complex patterns carved on the surface of the rock, which seemed to be an ancient mechanism.

They were too far away before and couldn't see it at all, but now they are closer and can see it clearly.

Rong Luo studied it carefully and found a circular groove in the center of the rock with eight directions engraved around it.

"This is the Bagua mechanism." Rong Luo whispered, "It needs to be turned in the correct order to open the door."

Shangguan Ziqi frowned: "But we don't know the correct order."

Rong Luo pondered for a moment, and suddenly his eyes lit up: "'The source of dragon veins, the secret of heaven and earth', perhaps the clue lies in these eight words. 'Dragon veins' corresponds to the 'Zhen' position in the Eight Diagrams, and 'heaven and earth' corresponds to the 'Qian' and 'Kun' positions. We might as well try starting from the 'Zhen' position and moving to the 'Qian' and 'Kun' positions in turn."

Shangguan Ziqi nodded in agreement: "Okay, let's do as you say."

Rong Luo took a deep breath, stretched out his hand and pressed it on the rock, slowly turning the mechanism at the "Zhen" position. As the mechanism turned, a low roar came from inside the rock. Then, he turned the "Qian" and "Kun" positions in turn.

When the last mechanism was turned, the rock suddenly made a loud noise and slowly opened to both sides, revealing a dark cave entrance.

"The door is open!" Shangguan Ziqi was extremely excited.

The prince and others below also heard the noise and looked up. The prince waved his hand, signaling everyone to prepare to enter.

Rong Luo and Shangguan Ziqi, along with a few guards, led the way into the cave entrance and discovered a narrow passage inside. Both sides of the passage were engraved with ancient murals that seemed to be telling some ancient story.

None of them understood it at first.

There is water outside, but it is relatively dry inside.

It's amazing.

At the end of the passage, a huge stone door can be vaguely seen. There are complex patterns engraved on the door, which seems to be another mechanism.

"It seems we still have to unlock the mechanism of this door." Rong Luo said in a low voice.

Shangguan Ziqi smiled and said, "With you here, these mechanisms shouldn't be a problem."

"No, Your Majesty, you are too kind. When it comes to mechanisms, I don't know much. I know someone who is more knowledgeable about mechanisms. Perhaps we can ask him to help." Rong Luo said modestly.

"who?"

"Elder Du from the Qishan Sect."

Shangguan Ziqi thought about it and realized that he had come this time and brought his disciples to cooperate with them, but he was arranged by the prince to look for someone else.

"Let's give it a try first. If it doesn't work, we can ask him for help." Shangguan Ziqi decided to give it a try first.

But the two of them studied it for a long time and couldn't figure out anything.

Even the prince and his men came in, but neither of them could figure out the reason.

"How is it?" The prince saw them groping in front of the stone gate.

"Your Highness, this door is a mechanism." Shangguan Ziqi turned around and saw them coming in, and stopped groping.