Lin Yu couldn't help but feel a little nervous. He had never felt that kind of aura from anyone else before. This kind of danger was the kind of temperament that only a true powerhouse who had fought his way out of mountains of corpses and seas of blood could possess!
Lin Yu felt a sense of pressure.
"This is a unique attire of our Heavenly Devil Race, called the 'Ghost Mask.' As long as you wear it, you can conceal your aura and change your appearance at will. Unless you are a powerful cultivator who has mastered the art of disguise, you will not be able to recognize the appearance of us Heavenly Devil Race Clan members!" the Heavenly Demon Saint Lord laughed.
"Alright, since you're willing to show me, then I'll show you too." After Lin Yu finished speaking, his left arm also transformed into a dark, ghostly mask.
"You should wear it too!" The Demon Lord smiled faintly, and with a slight flick of his wrist, a metal mask flew to Lin Yu's front.
"Hmm, you can hide your aura by wearing this mask!" Lin Yu was slightly taken aback; he hadn't expected that the Heavenly Demon Saint Lord would also possess such a metal mask!
The metal mask is a top-grade spiritual artifact, and its material is extremely precious; there are no more than twenty of them in the entire Demon Domain!
However, this thing's defensive capabilities are also terrifying.
"You Heavenly Devil Race are quite adept at making money!" Lin Yu shook his head slightly.
"Hehe, as you know, many cultivators in the Demon Domain offend the Demon Emperor for the sake of cultivation, and our Heavenly Devil Race is among the wealthiest of these cultivators. Therefore, we collected some rare metals to make this mask!" the Heavenly Demon Saint Lord explained. "However, although the mask is very useful, it has very strict requirements for use; only cultivators at the peak of the Saint realm can barely wear it."
"I see." Lin Yu nodded.
"Now, can you show me that thing?" Lin Yu asked with a smile.
"Hehe, of course you can."
As the Heavenly Demon Lord spoke, he waved his right hand, and a palm-sized, dark, ancient iron piece appeared out of thin air in his hand.
This iron plate, over a meter tall, is entirely black and covered with mysterious patterns.
The patterns possessed a mysterious and unpredictable power, as if they contained an endless destructive energy.
This mask gave Lin Yu a very dangerous aura!
"Is this the treasure?" Lin Yu frowned slightly, staring at the mask.
This mask looks almost exactly like the one in my hand.
However, this mask exudes an evil aura.
Clearly, it wasn't the one Lin Yu had!
"That's right, that's it!"
"I've agreed to your conditions!" Lin Yu nodded.
Upon hearing this, the Heavenly Demon Saint Lord was slightly startled.
He knew Lin Yu's strength. Although he had never seen Lin Yu make a move, he could clearly sense the aura emanating from Lin Yu.
This Lin Yu is definitely not someone to be trifled with, and now, Lin Yu has actually agreed to the deal.
"Are you... are you sure?" the Demon Lord asked with some concern.
"Don't worry, I won't go back on my word! I don't want to be killed here; I want to live a few more years!" Lin Yu laughed. "However, before the transaction, I'd like to know how you knew this treasure was in my possession?"
Lin Yu was extremely impressed by the methods of this Heavenly Devil Race Holy Lord. This person had managed to find out what was on him in such a short time and even wanted to seize it. Such methods were truly remarkable.
If I hadn't had so many trump cards up my sleeve, I probably would have fallen into this person's hands long ago.
"Hehe, it's very simple. Because our Heavenly Devil Race possesses a special search technique that can detect the whereabouts of you Human Race cultivators! Therefore, I have quite a few spies under my command," said the Heavenly Demon Saint Lord.
"I see. Now you can take this out, right?" Lin Yu said, flipping his right hand, and a golden bead appeared in his palm.
The golden bead radiated a golden light, making it look like a gemstone.
"This is a Vajra relic."
When the Demon Lord saw the golden bead in Lin Yu's hand, his eyes widened in shock.
The Heavenly Devil Race has a natural advantage against metal-based cultivation techniques.
"It seems you recognize this relic. Then hurry up and bring it out for me," Lin Yu urged.
The Demon Lord nodded, and with a slight turn of his wrist, a jade box appeared in his palm.
Inside the jade box was a golden bead.
Lin Yu reached out and caught the bead. It felt heavy in Lin Yu hand, seemingly not much lighter than the golden sphere in his own.
After careful observation, Lin Yu finally revealed an expression of ecstatic joy. "Haha, I knew I was right! This bead really is the legendary Vajra Relic. I never thought I would actually encounter it today!"
"Haha, I'm really lucky!" Lin Yu laughed excitedly. "I never expected the Heavenly Devil Race to have such a good opportunity. I've really struck gold this time."
"Haha, you're really lucky. The value of this Vajra Relic far exceeds your expectations. This Vajra Relic can enhance your cultivation of the Metal Element Laws and even help you condense your Golden Core, increasing the success rate," said the Heavenly Demon Saint Lord.
"What?! Such a wonderful feature? Then I've hit the jackpot!" Lin Yu's eyes gleamed with excitement.
"This Vajra Relic is a treasure left over from ancient times, containing a trace of the Great Dao rules of heaven and earth, making it the best choice for cultivating metal-type divine abilities." The Heavenly Demon Saint Lord said with a smile, "And this Vajra Relic was something I found by chance."
"Could you tell me how to refine this Vajra Relic and integrate it into your soul?" Lin Yu asked eagerly.
The reason he wanted to make a deal with the Heavenly Demon Lord was because he valued the Vajra Relic.
The Vajra Relic can increase the cultivation speed of cultivators practicing metal-based supernatural powers by 50%, which is of immense value.
If Lin Yu were to integrate that Vajra Relic into his body, his cultivation speed would increase dramatically.
"This Vajra Relic can directly absorb the Vajra Essence of Heaven and Earth, and thus refine it. However, this thing is too difficult to refine, and I have only heard that Vajra Relics can absorb Vajra Essence, but I have never heard that it can refine other treasures, such as this mask."
Although this mask can absorb the Heaven and Earth Spiritual Qi, it can only absorb the most ordinary Heaven and Earth Spiritual Qi. To absorb more powerful or extremely precious spiritual energy, special methods or external forces are required.
"Special external forces, such as certain magical artifacts?" Lin Yu pressed.
"That's right, it's a magic weapon!" said the Heavenly Demon Saint Lord. "This treasure is a Heavenly-grade magic weapon called the Vajra Relic."
It can absorb all the vital energy of heaven and earth.