"Dark God Book, also known as the Devil's Codex, is said to have been written by the first demon, Xilf, possessing the most primordial and purest demonic power!"
"Whoever obtains the Dark God Book will gain that most primordial and purest demonic power and become the supreme ruler of demons!"
Shen Potian quickly explained to Ye Feng.
"Demons?"
Upon hearing Shen Potian's words, Ye Feng frowned. "Do demons truly exist in this world? Was the demon dagger that Joseph took out before really from a demon?"
"Yes!"
Shen Potian let out a sigh. "During the Great Cataclysm, I was young and adventuring everywhere. By chance, I even killed a low-level demon!"
"........."
Looking at Shen Potian's casual demeanor, Ye Feng was speechless.
Shen Yunyao stared curiously at her grandfather. He had never told her these things before... Her life was basically filled with arcane energy, arcane runes, and arcane talismans...
"As for the demon dagger..."
Speaking of which, Shen Potian glanced at Xiao Xiao. "Ye Feng, Xiao Xiao, since you possess the Angelic Armor, you must also be aware of the Angelic Blade."
"Similar to the Angelic Blade, which possesses angelic power, the demon dagger holds demonic power!"
"Neither of these powers is ordinary. They cannot be countered by conventional attacks!"
"Ordinary people infected by demonic power might instantly turn to ashes..."
Shen Potian quickly explained to Ye Feng.
"Is that so~"
Ye Feng began to understand.
"By the way, Senior Shen, how did you eliminate the dark energy from Yun Yao's back wound yesterday...?"
Suddenly, Ye Feng asked curiously.
He remembered that after Shen Yunyao's back was cut by Joseph's demon dagger, the wound had been bleeding, entangled by dark energy that also eroded the wound...
But yesterday, Shen Potian sprinkled some powder and cast a formation on Shen Yunyao's wound, and the dark energy disappeared...
"It's a purification formation!"
As he spoke, Shen Potian's hand flashed with light, and a small jar of pink powder appeared in his hand. "This is ground arcane crystal. Arcane crystal is a strange thing. Although it has no arcane energy itself, it has many advanced uses!"
"The spark for the mechs is made from arcane crystal... and I previously sprinkled arcane crystal powder on Yao Yao's wound and cast a purification formation to eliminate the demonic power that was corrupting Yao Yao!"
"For a long time, arcane crystal, which coexists with arcane ore, was considered useless, even a curse. But I believe the value of arcane crystal is definitely higher than arcane ore!"
"Most obviously, not only our Mech City but also the City of Arcane Arts is acquiring arcane crystal. Not only is the purchase price extremely high, but they are also not picky about it!"
"They claim that arcane crystal is beautiful and highly favored by some noble ladies, but I suspect there's something else..."
As his voice fell, Shen Potian handed the jar of arcane crystal powder to Ye Feng. "Take this with you, it might come in handy. This thing isn't easy to find!"
"Okay~ Thank you!"
Ye Feng paused slightly and then took it.
Afterward, the few of them explored the formation tunnel further and discovered that the entire formation tunnel was part of an annihilation formation that Shen Potian had previously activated.
The formation tunnel connected almost all the important locations in Mech City. It was where Ye Feng had found the entrance to the secret passage, and several of these locations were focal points of the annihilation formation...
During their exploration, Shen Potian offered to give the black chest and the Holy Grail to Ye Feng, but Ye Feng refused, as he had already received many good things from Shen Potian and felt it would be impolite to take more.
Moreover, he had no idea what the Holy Grail was and found it meaningless to possess. Besides, he had something in his spatial warehouse that was said to be a divine stone...
"........."
"Ye Feng, what are you looking at?"
After they left the formation tunnel and walked out of the teleportation gate, Shen Yunyao was about to retract the teleportation gate when she saw Ye Feng squatting and examining it, and she asked curiously.
"Uh... Yun Yao, I think this 'Fire Seed Hidden Edge' might have other uses. This teleportation array might just be one of them!"
Ye Feng spoke slowly after a period of observation.
"Other uses?"
Shen Yunyao frowned slightly and moved closer to Ye Feng, following his gaze.
"Yun Yao, when you activated the Fire Seed Hidden Edge into a teleportation array just now, you should have activated quite a few formations with arcane energy, but this formation seems to have been unused, right?!"
Ye Feng said as he pointed to a formation for Shen Yunyao.
"This... the formations I activated before... this one seems to have really not been used!"
Shen Yunyao looked closely and was suddenly surprised.
"And when the Fire Seed Hidden Edge is not in the state of a teleportation portal, its structure is also quite peculiar..."
"There are a few places that require an inlay structure with other components, as if it was disassembled from something else, but it's a bit strange..."
After a pause, Ye Feng added again.
"Is that so?"
Shen Yunyao frowned, quite perplexed.
The two of them continued to research for a while but found no progress. Then Ye Feng and Xiao Xiao left to rest, as they were both still injured.
"Grandpa, why don't you care at all about the banana peel in the formation tunnel?"
"That was clearly discarded after someone ate a banana, and it couldn't have been there for long! Someone went there before us!"
After Ye Feng and Xiao Xiao left, Shen Yunyao had just put away the Fire Seed Hidden Edge when she suddenly remembered a scene from earlier and transformed the Fire Seed Hidden Edge back into a teleportation gate.
"Yao Yao, put it away~!"
Shen Potian smiled slightly. "That banana peel was probably dropped there by Ye Feng, or perhaps Xiao Xiao!"
"Wh-what?"
Shen Potian's words made Shen Yunyao pause slightly.
"Yes!"
Shen Potian nodded gently. "Although I don't know how they got in, it should be them!"
"I have almost everyone in Mech City under my control, and it has been like this for decades, until the arrival of Ye Feng and Xiao Xiao..."
"As for Wang Bantian, Sphinx, and even Joseph, whom I only suspect has been hiding in the shadows... If they had the ability to enter that place without my knowledge, they wouldn't have launched such a large-scale attack..."
"And judging from the scene, Ye Feng and Xiao Xiao merely took a tour after entering."
"They live on Mech Star, which happens to be a focal point of the annihilation formation and a connected point of the formation tunnel. Ye Feng has considerable research in arcane formations, so it's not strange that he has a way to get in..."
At this point, Shen Potian paused. "Most importantly, Ye Feng bears no ill will towards us..."
"........."