As recorded in the ancestral memories of the Dragon Clan, those who cultivate the Unlimited Magic Eyes must possess a strong Physical Strength, Divine Soul, and Bloodline Power.

These three conditions, Zhao Letian had them all.

There's no need to elaborate on the strength of his Physical Strength. Even now, a casual punch without using any True Yuan or Martial Technique can generate an attack force comparable to someone at the ninth level of true martial mastery.

And when he advances to the ninth level of true martial mastery and acquires the power of the hexagram, it's estimated that he could directly contend head-on with experts who have just entered the Sect Martial Realm using only his Physical Strength.

As for the Divine Soul aspect, Zhao Letian, who possesses two souls and two Martial Souls, has Divine Soul Power that far surpasses his peers, even enough to be comparable to those in the Middle Stage of the Sect Martial Realm.

Lastly, regarding Bloodline Power, before activating the Royal Bloodline, Zhao Letian's Bloodline Power was not overly potent. However, now that the Flood Dragon blood in him has been activated, and with the enhancement from the Holy Spirit Power of Gray Wolf Kingdom, and because he directly absorbed all of Dragon Blood Power from the Dragon Transformation Pool while activating his Bloodline Power, his Bloodline Power is even stronger than the founding ancestors of Dajin Country.

However, even though he has far surpassed his peers in these three aspects, according to the Dragon Clan ancestral memories, his current level is just barely enough to meet the minimum threshold to cultivate the Unlimited Magic Eyes.

In other words, among his peers, almost no one else but Zhao Letian qualifies to cultivate the Unlimited Magic Eyes.

Moreover, even for him, he must still rely on some Heavenly Materials and Earthly Treasures to begin cultivating the Unlimited Magic Eyes.

"In the process of cultivating the Unlimited Magic Eyes, one needs to use some precious Spiritual Liquids to cleanse the eyes. I have already gathered most of the ingredients for concocting that kind of Spiritual Liquid. I only lack one last item called the Heavenly Crystal Stone. I wonder if it's available for sale in this Dark Demon Domain."

Zhao Letian contemplated inwardly.

Now, there's only less than half a year left before the Imperial Secret Realm begins.

In this time frame, he must hurry and strive to master the Unlimited Magic Eyes.

Once accomplished, after entering the Imperial Secret Realm, he will have a greater chance of survival.

"Master, you seem very familiar with this Dark Demon Domain. Are there any famous shops or auction houses here?"

After pondering for a moment, Zhao Letian took out the Communication Jade Scroll and inquired with Master Weiwei.

Without delay, he planned to start searching for the Heavenly Crystal Stone.

As he knew, the Dark Demon Domain, while gathering villains from all corners, also attracted a variety of rare treasures from different places.

The chances of finding the Heavenly Crystal Stone here might even be higher than in the Royal Capital of Dajin Country.

"In such a place, there's naturally no lack of trading venues. Even so, the treasures sold here... The Four Great Kingdoms may not have what's here, but what the Four Great Kingdoms have is definitely not missing here. Many villains come here to sell some unspeakable treasures. Are you looking to sell or buy?"

Master Weiwei replied.

"Both."

Zhao Letian answered.

"Is the item you seek expensive? How rare is it? Is it extremely unusual?"

Master Weiwei continued to inquire.

"Extremely unusual. You can't buy it in ordinary shops, and naturally, it's not inexpensive."

Zhao Letian responded.

"Alright then. Since that's the case, there happens to be an underground auction happening tonight. Come with me."

Master Weiwei replied. My Virtual Library Empire (*) hosts the original.

"An underground auction? How is it different from a regular auction?"

Zhao Letian curiously asked.

"The difference is that this auction is not held by any particular firm, but rather a private auction organized by a powerful rogue Martial Artist. Only trusted individuals who have received an invitation are eligible to attend. That person is a King-level Expert. Those fortunate to be invited by him are either wealthy or noble, all far from ordinary. Everyone has a great number of treasures on them, perhaps some of them possess the treasure you are looking for."

Master Weiwei explained.

He initially got to know that person because he had concocted an elixir for the King-level Expert.

"A King-level Expert? Can you ensure safety?"

Zhao Letian asked with a slight surprise and concern.

Although he possessed many methods, in front of a King-level Expert, it seemed almost futile and hard to be effective.

Therefore, if not necessary, he did not want to casually come into contact with unfamiliar King-level Experts.

"Don't worry. He has been hosting this kind of underground auction for more than a day or two. He has at least that much credibility; otherwise, no one would dare to attend. Moreover, I have once concocted a precious elixir for this person; he owes me a favor. He will definitely not harm us."

Master Weiwei confidently said without concern.

"Then let's not delay any further. Let's go now."

After careful consideration, Zhao Letian made a firm decision.

"No rush. If it's convenient, why don't you tell me, what exactly do you need? Maybe, I have it here."

Master Weiwei asked.

"Heavenly Crystal Stone, do you have it?"

Zhao Letian inquired.

"Heavenly Crystal Stone? I don't have it, but I vaguely remember seeing it once in a very ancient book. This kind of treasure seems to be related to cultivating powerful Pupil Skills. However, that book did not detail how to use this treasure. Might you know how to use this item?"

Master Weiwei asked with curiosity.

As a third-level Alchemist, he had encountered various Heavenly Materials and Earthly Treasures far beyond his peers, yet he had never seen the Heavenly Crystal Stone. He was extremely interested in this rare treasure.

"Do you want to know?"

Zhao Letian asked with a teasing smile.

"What do you mean? Are you trying to make a deal with me again?"

Master Weiwei's voice held a hint of wariness.

"Master is indeed clever. I do know how to use the Heavenly Crystal Stone, and it's not just for a single purpose. If you want to know, all you have to do is promise to help me three more times."

Zhao Letian said with a light smile.

"Three times? I think not. That thing is of no use to me, and I have no need to know how it's used."

Master Weiwei promptly refused.

He was a high-level Sect Martial Realm expert and a distinguished third-level Alchemist. To follow Zhao Letian for the sake of the Elixir recipe for the Life Extension Pill was already a significant sacrifice, and he wouldn't allow Zhao Letian to continue exploiting him.

"In that case, let's not waste any more time and head to that underground auction now."

Zhao Letian spoke nonchalantly.

"Yes, it's getting late. Let's go."

Master Weiwei said.

With that, the two left the Four Directions Pavilion once more, transforming into two streaks of light, speeding through the dense black clouds in the sky, heading towards a very remote area.