The entire underground space can be said to be a perfect Eight Trigrams Furnace composed of jade.
"It's truly astonishing that there exists such a Land of Creation in the world?" Zhong Xiang also entered the underground space, looking at the scene before him, stunned: "How did you know there was such a Land of Creation here?"
"This is the Feng Shui Dao, mere tricks not worth mentioning." Zhang Chen boasted to Zhong Xiang, though he knew nothing about Feng Shui.
Zhong Xiang glanced at Zhang Chen, then raised his head to carefully inspect the barrier of the Eight Trigrams Furnace with a flame in his hand for illumination: "These jade stones are all top-grade Mutton Fat Jade. If they are all mined, one would become immeasurably rich, enjoying wealth and prosperity for a lifetime."
Then he turned to Zhang Chen and said: "Boy, everyone gets a share after seeing this. You have to give me a piece of these jade stones. Confucian disciples love this pure Mutton Fat Jade, and if I bring it to the Academy to sell, I could make a huge fortune!"
"What do you know? You're simply uncouth; the layout of this Innate Eight Trigrams Furnace is invaluable and cannot be measured by the value of jade." Zhang Chen ridiculed.
In the face of Zhang Chen's contempt, Zhong Xiang wasn't angry but rather humbly sought guidance: "Please enlighten me, brother."
"Just watch my methods later." Zhang Chen stood inside the furnace, carefully examining the walls of the furnace, a thoughtful look in his eyes.
"Huh, look at the countless patterns and symbols on this jade wall, how strange." Suddenly, Zhong Xiang seemed to have discovered something and remarked.
Hearing this, Zhang Chen also leaned over to observe. He saw a series of symbols engraved on the barrier of the Eight Trigrams Furnace. The symbols were born out of the Great Creation of Heaven and Earth, appearing very mysterious, but unfortunately, Zhang Chen couldn't understand them.
"These symbols are products of Heaven and Earth's Creation. If a Yang God expert were here to attain enlightenment, they might conceive some wondrous Divine Techniques, but unfortunately, they will have to be refined by me." A trace of regret appeared in Zhang Chen's eyes.
"These symbols look so strange; some of them make my natal flame active when I look at them. There must be a great secret within these symbols, but unfortunately, I can't understand them." Zhong Xiang exclaimed, seemingly having discovered a great secret.
Zhang Chen smiled and said: "This is the Innate Eight Diagrams land, containing the supreme laws and rhythms of Heaven and Earth, determining Heaven and Earth, connecting mountains and waters, thunder and wind interacting, water and fire not opposing. The Eight Trigrams interweave, those who follow them understand the past, and those who foresee the future understand the reverse flows. Thus, they represent the reverse numerology of changes."
Upon hearing this, Zhong Xiang's breathing became rapid, his eyes fixated on the symbols that made his natal flame active, unable to look away, his gaze filled with fervor: "Such mysterious symbols, I must carve them out and take them away."
"Don't you dare mess around here, this is my place. If you ruin my Eight Trigrams Furnace, I'll have a fight with you." Upon hearing that Zhong Xiang wanted to carve out the symbols on the Innate Eight Trigrams Furnace, Zhang Chen was immediately unhappy and warned him.
Zhong Xiang turned to look at Zhang Chen, then replied irritably: "Even if you won't let me carve them out, surely you can let me memorize them? I want to record these symbols to study back home, nothing wrong with that, right?"
Zhang Chen was noncommittal: "You'd better hurry; don't delay my treasure refining."
"What exactly do you mean by refining a treasure?" Zhong Xiang asked curiously while studying the symbols.
"You'll see when the time comes." Zhang Chen replied somewhat irritably.
After speaking, Zhang Chen turned his gaze from the symbols. Although these Innate Eight Diagrams symbols contained the Dao of Heaven and Earth, they were not something Zhang Chen could comprehend.
Asking him to painstakingly comprehend Divine Techniques? That would be wishful thinking! How could comprehending Divine Techniques be faster than directly acquiring skills?
Zhang Chen examined the entire Eight Trigrams Furnace carefully, confirmed that nothing was missed, then transformed into mist and flew out, inspecting the surrounding mountains and terrain, opening his Dharma Eye for a final check.
But upon opening his Dharma Eye, Zhang Chen suddenly froze, his eyes filled with vigilance, as he saw a Mysterious Power flash by suddenly.
"What are you doing here?"
Before Zhang Chen could see clearly, a figure flickered in front of him, closing in on him.
Looking closer, he saw it was none other than Xie Lingyun.
However, Xie Lingyun was in a Yin Spirit state, so she was directly seen through by Zhang Chen's Dharma Eye.
"Sister, why are you here?" Zhang Chen asked curiously.
"It's a long story," Xie Lingyun replied. "Do you know what place this is?"
Hearing this, Zhang Chen paused and then replied: "Isn't this the Innate Eight Diagrams place I asked Sister to find for me?"
"Yes, it's the Innate Eight Diagrams place, but do you know why I found it for you so quickly?" Xie Lingyun asked.
Zhang Chen, being a fitting straight man, followed up with another question: "Could this place be special?"
"This place is the Reverse Scale of the Northern Land Earth Ancestral Vein, a place under strict surveillance by our Inspection and Supervision Department. This Earth Ancestral Vein is connected with the fate of Prince Pingbian's Mansion and is where the mansion rose to power. By monitoring this place, we can check if Prince Pingbian's Mansion has any rebellious ambitions. It's one of our main tools for monitoring all dukes across the land," Xie Lingyun explained to Zhang Chen.
Upon hearing this, Zhang Chen suddenly realized it must be because, after the previous battle, the Inspection and Supervision Department needed to verify whether Prince Pingbian's Mansion had any rebellious intentions.
"Is Prince Pingbian's Mansion planning a rebellion?" Zhang Chen inquired.
Xie Lingyun shook her head: "Currently, the Dragon Vein here is dormant, indicating Prince Pingbian's Mansion hasn't yet plotted rebellion. If it transforms into a flying dragon soaring to the heavens, it would indicate that Prince Pingbian's Mansion has rebellious intentions."
Xie Lingyun looked at Zhang Chen with surprise: "Speaking of which, you asked me to find this place, what do you plan to do here?"
Zhang Chen glanced at Xie Lingyun and, not hiding anything, explained his plan to refine a treasure here. He had previously only asked Xie Lingyun to find a treasure location without explaining the reason, and Xie Lingyun hadn't inquired further at the time.
There was no way to hide this from Xie Lingyun because when he opens the furnace later, it can't be hidden from her. Moreover, since Xie Lingyun's Heart Demon was in his grasp, any adverse thoughts she harbored would be sensed immediately.
Additionally, Zhang Chen thought that when refining a treasure, there could be unforeseen incidents, and having Xie Lingyun to handle any issues might save a lot of trouble.
"Refining a treasure? What do you mean by refining a treasure?" Xie Lingyun asked curiously, her eyes showing a trace of intrigue.
In this world, there wasn't a concept of refining magical treasures. All the treasures were born from Heaven and Earth, more appropriately termed Innate Spiritual Treasures, marked with the various Laws of Heaven and Earth.
As for treasures artificially refined postnatally, there genuinely wasn't any conception of them in existence.
After all, the mystery of humanity had only been explored for a few years?
Not nearly enough for development.
Moreover, regarding treasures, there isn't a clear standard on which is stronger between Innate and Acquired Treasures.
In terms of Magical Treasures, the Four Immortal Slaying Sword Array and the Heaven-Overturning Seal are both artificially refined postnatally and have surpassed ninety-nine percent of Innate Spiritual Treasures in the world.
The functions of each are different, and there's really no basis for a comparison.
For example, you can't compare a defensive Innate Spiritual Treasure with an offensive one; such a comparison would be unfair and practically impossible.
"When I've finished refining the treasure, you'll see, Sister," Zhang Chen said with a smile: "It's just that it might cause some commotion, so I hope Sister can help smooth things over."