After returning to Four Directions Pavilion, Master Yu also settled on a room.

And Zhao Letian, he headed to his own residence.

Seated cross-legged in the room, Zhao Letian saw a flash of Spirit Light in his hand as he took out the Ghost King Stele and began inspecting it carefully.

The two tombstones had an ancient design and seemed to be from a very distant past.

As for their efficacy, there was no need for further words; Zhao Letian had already witnessed it himself.

However, he was still unclear on how exactly to use the Ghost King Stele.

"That tall man's Storage Ring should contain the instructions for its use."

Zhao Letian thought to himself and immediately took out the tall man's Storage Ring, allowing his Divine Thought Power to permeate and search within.

"Whoosh!"

Moments later, his eyes lit up as he extracted a Jade Scroll from the tall man's Storage Ring.

Sure enough, just as he had expected, the Jade Scroll recorded the method of using the Ghost King Stele.

"Besides a blood sacrifice to bind it and its refinement, each use requires feeding the malicious ghosts within the Ghost King Stele with one's own Essence Blood. Only then can you control them, and the more Essence Blood fed, the stronger and more numerous the malicious ghosts that can be controlled."

Zhao Letian frowned as he read the method recorded in the Jade Scroll.

From what he knew, using one's own Essence Blood to feed ghostly entities was a very dangerous and heretical practice. Once those ghosts tasted his Essence Blood, they would remember its flavor, and thereafter he would need to regularly feed the ghosts with this type of Essence Blood. If these ghosts were not satisfied, they would backlash against the person providing the Essence Blood.

In other words, if he wanted to utilize the Ghost King Stele, he would be risking backlash from those malicious ghosts.

"With the Corpse Ape around, those malicious ghosts shouldn't be a concern," Zhao Letian thought to himself secretly.

The Corpse Ape's original form, the Purple Lightning Thunder Ape, possessed innate Thunder Divine Abilities that were not trivial and had the effect of specifically countering yin ghostly entities.

Moreover, the future evolution and upgrades of the Corpse Ape would also rely on continuously absorbing the power of yin ghostly entities.

If it wasn't for Zhao Letian stopping it, the Corpse Ape would have almost directly swallowed the Ghost King Stele previously. With the Corpse Ape around, he had no reason to worry about the malicious ghosts' backlash.

Stepping back, even if the Corpse Ape wasn't by his side, Zhao Letian's own strength was also extraordinary, and it wouldn't be easy for those malicious ghosts to backlash against him.

The only problem was that, according to the method of usage recorded in the Jade Scroll, the strength and quantity of the malicious ghosts summoned from the Ghost King Stele were closely related to the amount and strength of Essence Blood he could provide.

The Yin Yang Demons were Sect Martial Sixth Realm practitioners with Essence Blood that was superior both in quantity and quality compared to Zhao Letian's. They could summon high-level Sect Martial Realm malicious ghosts, but Zhao Letian might not be able to. T$his is a s#a$m*ple f#r@om My V$irt$ua!l. L+ib#r^a$ry E&mpire. R&ea&d& the rest on M&-VL!EM$P!Y!R-.-

"If that is the case, wouldn't the Ghost King Stele be as useless to me as a chicken rib?" Zhao Letian's brow furrowed slightly, feeling rather vexed in his heart.

If his Essence Blood could only summon Martial Realm malicious ghosts, then there was no need for him to take the risk of using the Ghost King Stele at all.

After all, he was already a second-level Artifact Refiner, capable of refining Martial Realm Puppets with ease, and could even refine Initial Stage Sect Martial Realm Puppets. Naturally, there was no use for Martial Realm malicious ghosts.

Thinking this, Zhao Letian had to temporarily give up the idea of refining the Ghost King Stele and continued to rummage through the tall man's Storage Ring.

He felt that the Yin Yang Demons, even within the Dark Demon Domain, were no ordinary figures. There might be quite a few good things inside their Storage Rings.

"Eh? What is this?"

Suddenly, Zhao Letian found an ancient-looking beast skin scroll emitting a powerful aura and couldn't help but brighten up as he took it out.

Upon spreading out the scroll, he saw that it depicted a map. Although not detailed, it featured various terrains such as mountains, rivers, lakes, and seas, representing an extremely vast area.

However, the scroll was incomplete, seemingly missing half of it.

"Could the missing half be in that short man's storage ring?"

Zhao Letian frowned and mused.

The short man was slain by Master Yu, whose storage ring was not given to Zhao Letian.

"Buzz!"

Just then, a Communication Jade Scroll on Zhao Letian's person suddenly vibrated.

"Do you have half of a scroll on you?"

Zhao Letian took out the Jade Scroll, and his Divine Thought Power invaded it, immediately hearing Master Yu's slightly excited voice.

"Indeed, there is half a scroll. Do you also have the other half?"

Zhao Letian, intrigued, candidly replied.

Master Yu was usually a very calm and mature person; Zhao Letian had never seen him so excited before. It seemed that the map on the beast skin scroll must be extraordinary.

"Could you sell me that half of the map?"

Master Yu stated his purpose directly, his voice quite eager.

"Sell it to you? Why?"

Zhao Letian narrowed his eyes and inquired.

"I won't conceal it from you; the map on this beast skin scroll could likely lead to a precious Ancient Relic, or even a Secret Realm Space, and it's possibly unclaimed, hiding great fortunes. I require it to seek an opportunity to break through to the King-level,"

Master Yu said frankly.

Having spent several months with Zhao Letian, he knew him well enough to understand that despite Zhao Letian's young age, his thoughts were meticulous. It would be extremely difficult to hide anything from Zhao Letian, better to simply tell the truth.

"Ancient Relics? Secret Realm Space? Unclaimed?"

A glint flashed in Zhao Letian's eyes, and he too was immediately excited.

Having experienced the Gray Wolf Secret Realm, Zhao Letian was very aware that such Ancient Relics or Secret Realm Spaces, even to the likes of Gray Wolf Kingdom and the Four Great Kingdoms, were the most important resources for an entire country. Owning even a single Secret Realm Space could found a nation.

However, most of the known Ancient Relics or Secret Realm Spaces had long been divided up by major powers. They do not allow outsiders to enter easily, and the precious treasures within have already been looted. Even if one were to enter, there wouldn't be much benefit to gain.

If the map on this beast skin scroll really led to an unclaimed Ancient Relic or Secret Realm Space, its immense value goes without saying.

"Master, are you joking with me? You want to buy my map—are you planning to monopolize this treasure by yourself? Such a precious item, I'm afraid even if you spend all you have, you can't afford it,"

Zhao Letian teased with a chuckle through transmitted voice.

"Of course, I do not wish to monopolize it. I merely want to assemble the complete map and explore. If you don't wish to sell it, we could trade the pieces with each other,"

Master Yu explained.