"Hmm?!"

When Gai Fu uttered these words, everyone present was stunned and looked at him.

Feeling the gazes of the Commandants, Gai Fu smiled faintly:

"Is it strange? You think that I, who have always highly recognized Lieutenant Li's martial arts talent, would now question him. This is very unusual, isn't it?"

Upon hearing this, Gong Shuo Hong and the others exchanged glances, then nodded.

"Heh heh, alright then, I'll tell you the answer."

Gai Fu turned around, looking at the Demon Slayer Commandants in the tent, and slowly said, "I think you all might have forgotten, that 《Heavenly Lotus Earthly Sage Scripture》 has never been a martial arts Cultivation Technique; it's a legitimate ancient mystical art classic."

Everyone was first startled, then suddenly enlightened.

That's right, the 《Lotus》 Scripture is a Cultivation Technique of the mystical arts, completely unrelated to martial arts.

No matter how Heaven-Defying Li Hai's martial arts talent was, what did it have to do with that mystical arts Cultivation Technique?

After understanding this, everyone's gaze towards Li Hai in the light screen involuntarily showed a hint of doubt and regret.

It was a pity that he was ultimately going to do something useless.

And it was also a pity that Zheng Dashan's family was ultimately going to die.

Li Hai couldn't change their tragic fate.

Even Gong Shuo Hong, who had always greatly admired Li Hai, couldn't escape this common sentiment and began to have a hint of doubt about his current action of Cultivation Technique deduction.

At the same time, Li Hai, who was subtly doubted by everyone, had already shifted his mental perspective into the Guiyou Cave Heaven.

Since he had to pretend for half an hour, he couldn't just sit there doing nothing.

So, it was better to use this time to "recharge" the Cave Heaven with some soul remains and unlock a few more rooms.

And after shifting his mind into the Cave Heaven, Li Hai immediately began the 'recharge'.

First, the several thousand soul remains from the Wraith-level ghosts, after being completely ground into powder by Li Hai and painted into the red light scroll, the entire side hall trembled slightly, finding and connecting to two new buildings.

After Li Hai entered and explored them one by one, he found that these two buildings were a desolate Ice Lake about ten li in circumference, and a dilapidated Medicinal Pill workshop.

Regarding the Ice Lake, Li Hai roughly investigated it but found no precious relics.

So he temporarily stopped inquiring, planning to investigate further if he became interested someday.

However, in the seemingly dilapidated Medicinal Pill workshop, only about ten zhang wide, Li Hai, upon a more careful investigation, unexpectedly discovered good things.

There were two perfectly round Medicinal Pills, one red and one blue, carefully preserved in Unknown crystal blocks.

Aside from these two, Li Hai found that all other Medicinal Pills stored in porcelain bottles or various vessels had, upon opening, turned into foul-smelling, black viscous liquid.

This clearly indicated that they had completely spoiled, deteriorated over the long years, and had transformed from Medicinal Pills into poison. As for the two well-preserved Medicinal Pills, Li Hai also found a jade tablet with Seal characters nearby, resembling a Medicinal Pill instruction manual.

From the blurred characters on it, the red Medicinal Pill was called Earth Longevity Pill, and its effect was to increase Lifespan by three hundred years.

Three hundred years of Lifespan. To be honest, three hundred years is equivalent to the complete Lifespan of an ancient Dynasty in the Dragon Kingdom on Earth.

If this Medicinal Pill were taken to Earth, whether in ancient or modern times, it would likely trigger a war.

The other blue Medicinal Pill was called Heavenly Muscle Saint Bone Pill, and its specific medicinal effect was to optimize the Physical Body, enhancing its strength and Qi.

However, the jade tablet did not specify how much it could enhance.

But Li Hai had a vague feeling that if he consumed this Medicinal Pill, the increase in Physical Body strength and Qi might be very considerable. After taking these two Medicinal Pills, Li Hai returned to the side hall and began another round of soul remains 'recharge'.

As for the soul remains used, it was naturally the one "enthusiastically" provided by Chiqiu Piaolong.

And when Li Hai carefully ground this noticeably larger soul remains into powder and painted it into the red light scroll, the entire side hall immediately found and connected to yet another new building.

This building was the armory.

Upon entering, Li Hai found that after countless years, this armory, which was no smaller than the Naihe Prefecture's side hall, was now filled with wreckage and scrap metal, and almost nothing intact could be seen upon scanning around.

However, after delving into this junkyard and meticulously searching through it, Li Hai finally found a 'big thing'.

It was a gigantic humanoid object with four arms and two legs, lying flat on the ground, completely covered by many discarded and decaying items.

And only after clearing away all the debris and garbage from this object did Li Hai discover what it was.

It was, astonishingly, a five-zhang-tall, perfectly preserved, antique-looking humanoid mecha, with an overall dark green bronze color.

That's right, it was a mecha, not a robot.

The reason for this certainty was that deeply embedded within the chest of this massive object, covered in bas-reliefs and runes, was a cockpit.

However, this spherical cockpit was somewhat too small; its diameter was only about three chi, requiring a normal person to curl their entire body to enter.

But soon, Li Hai found the reason for the excessively small cockpit.

Inside this small cockpit, he discovered a completely petrified, bloated skull.

At the same time, the skull was densely covered with complex wires and thick or thin metal supports inserted into various positions above, below, and around it.

Upon seeing these, Li Hai instantly understood that this was a 'wetware' mecha specifically built for a single head.

That already petrified, deformed skull, when it was still alive thousands or tens of thousands of years ago, was the original pilot of this bronze mecha.

As for how the previous high-ranking officials of Naihe Prefecture managed to keep a single head normally active and thinking, and transplant it into the mecha for long-term existence, Li Hai was too lazy to investigate; he wasn't a scientist.

At the same time, Li Hai had no interest in investigating.

This was because, in a corner of the spot where the mecha lay flat, he unexpectedly discovered an Unknown Cultivation Technique, written on Materials of Unknown origin.

And when Li Hai opened the hard flyleaf of this Cultivation Technique Secret Manual, he discovered that it was precisely the Complete Manual of the 《Heavenly Lotus Earthly Sage Scripture》.

"Good! That saves a fragment!"

Filled with joy, Li Hai immersed himself wholeheartedly into this Cultivation Technique.

Possessing the 【Study Hard】 System, his speed of reading books was extremely fast, almost comparable to a Genius who had mastered quantum wave speed reading.

So, after some time, Li Hai completely learned this Cultivation Technique, allowing it to be listed in his personal interface's skill bar.

And after thoroughly learning this Cultivation Technique, he immediately understood its specific power.

Simply put, once one thoroughly learned and cultivated this Complete Manual of the 《Lotus》 Scripture, one could continuously break through several realms to reach the fourth level of the mystical arts—the realm of Grasping Wind and Capturing Lightning.

At that time, almost all diseases and poisons in the Human Realm could be easily dispelled by the Cultivator of this scripture.

At the same time, anyone who had died for no more than five days, and whose Physical Body and soul were both intact, could also be brought back to life by the Cultivator's spell.

What surprised Li Hai even more was that all of the above were merely the positive powers of this scripture.

It could also be used in reverse, thereby transforming into a world-shaking evil art.