In a private mountain range and valley belonging to the Black Wing Bone Demon King in the Holy Source Demon Kingdom, a person walked out of a shadow directly, and it was Shu Feng.

As soon as Shu Feng came to the valley, he immediately recited the mysterious mantra and pointed to the ground.

A black light flashed, and a pitch-black door appeared directly.

A ghost dragon with a body length of up to three hundred meters, draped in a layer of black scales, between the real and the unreal, suddenly appeared, staring at Shu Feng deadly, with a fierce light flashing in his eyes, and said coldly: "Who are you?"

"He's my man!!Long Tuo open the door!"

A trace of ripples shone, and the black-winged bone demon king, who was so weak that he only had one breath left, as if he might die at any time, suddenly appeared and shouted.

The ghost dragon with the peak strength of the lower demon king was suddenly silent for a while, staring at the black winged bone demon king, with a strange ghost light flashing in his eyes.

"It seems that you see me weak and want to betray me!!"

The Black Winged Bone Demon King smiled fiercely, in the Void Demon Realm, there is loyalty, and it is also often accompanied by betrayal.

That ghost dragon dragon dragon was forcibly sealed here by the Black Wing Bone Demon King, acting as a guardian monster of his treasure. Naturally, the ghost dragon dragon dragon dragon didn't have much loyalty to him.

The Black-Winged Bone Demon King suddenly chanted a strange incantation.

"No!"

A mysterious spell mark suddenly appeared on Long Tuo's body, and bursts of ghostly light emerged from the spell mark, burning him directly, screaming miserably, and countless black smoke appeared all over his body, and he was in agony.

"Master, I'll open the door!Please forgive me!!"

Long Tuo screamed again and again to urge the power of the Demon King, and the flash of black doors opened directly, revealing a huge space.

"He really deserves to be the patriarch of the Holy Source Demon Kingdom, there are so many good things!"

As soon as Shu Feng entered the treasure house of the Black Wing Bone Demon King, he was immediately attracted by the dazzling array of treasures in the treasure house.

The low-grade Void Demon Yuan Crystals, which are very rare in the hands of ordinary Void Demon Kings, are stacked in boxes in this treasure house. Medium-grade Void Demon Yuan Crystals are not uncommon.

Shu Feng's eyes lit up, and he picked up a small box, with a hint of satisfaction in his eyes: "Top-grade Void Demon Yuanjing!There is actually a small box, it's really good!!"

The Void Demon Yuan Crystal between different grades not only contains different powers, but also contains different power refinement purities. The official exchange ratio of those Void Demon Yuan Crystals is 100:1. However, 100 medium-grade Void Demon Yuan Crystals can never be exchanged for 1 high-grade Void Demon Yuan Crystal.

It takes about 300 pieces of medium-grade Void Demon Yuan Crystal to be able to exchange for 1 piece of high-grade Void Demon Yuan Crystal, and there is no market price, so it is difficult to exchange for large quantities.

"This is the [Cold Fire]!!The Demon Fire [Cold Fire] of the 3,536th rank in the Ten Thousand Flames of the Void Demon Realm!!It can be fused with my [Burning Sky Demon Fire]!"

Shu Feng's eyes lit up and he came to a crystal cabinet.

In that crystal cabinet, there was a demonic fire that emitted a blue cold flame. That demonic fire is the extremely precious [Cold Fire] in the Void Demon Realm!!

The 10,000 kinds of demonic fires recorded in the Void Demon Realm Ten Thousand Flames Record are extremely terrifying, and the 1,000 of them are all extremely terrifying, terrifying demonic fires that only a demon god-level powerhouse can control.

That [Cold Fire] ranked 3,536, which was already among the top demonic fires. The Black Winged Bone Demon King, as the patriarch of the Holy Source Demon Kingdom, only got this spark.

It's just that the Black Winged Bone Demon King is in charge of the power of bones, and he is not good at flame manipulation, so he can only keep it in the treasure house and use it in exchange for the cultivation resources he needs in the future.

"This is the [Hidden Soul Demon Lamp]! a top-level artifact that can conceal soul fluctuations and prevent demon-god-level powerhouses from peeping into the secret method!"

Shu Feng's eyes lit up, and he took a mysterious crystal lamp in his hand.

The demon god-level powerhouse is too terrifying, and with a search secret method, you can find out the king of the void demon hundreds of millions of miles away. This is also the reason why all the Void Demon Kings are afraid of the Holy Source Demon Kingdom.

The Holy Source Demon God would not make a move easily, but every time he made a move, he would basically kill an arrogant and domineering high-ranking demon king, and even many half-step demon god-level powerhouses who challenged his majesty died tragically in his hands.

With an artifact like the [Hidden Soul Demon Lamp], you can evade the long-distance search for secret methods by demon god-level powerhouses. This is also the hole card of the Black Wing Bone Demon King's betrayal of the Holy Source Demon God.

Of course, if the distance is too close, then the [Hidden Soul Demon Lamp] will still not be able to avoid the search of the Holy Source Demon God. Those half-step Demon God level powerhouses are just because they are too close to the Holy Source Demon God, so it is useless to hide, there is only a dead end.

"Blood Gem, Earth Essence, Wind Essence, Fire Essence, Dark Essence...... The Black Winged Bone Demon King is really amazing, he actually has so many precious resources!Qingyan and Su Mi, the two great masters, can evolve madly!!"

"The only trouble is that the high-level source energy is insufficient!!!After all, the Black Wing Bone Demon King must fully recover!"

Shu Feng looked at the treasure house of the Black Winged Bone Demon King, his eyes full of joy and trouble.

The Black Winged Bone Demon King was a top-level high-ranking Demon King, and he was only barely able to maintain the power fluctuations of the lower Demon King level at this time, just because he had not yet been fully synthesized.

The resources needed to synthesize a top-level demon king are also like mountains and seas, and Shu Feng also obtained this treasure trove left by the Black Wing Bone Demon King before he can directly synthesize him.

After taking the treasure of the Black Wing Bone Demon King, Shu Fengxuan immediately began to consume high-level source energy to synthesize the Black Wing Bone Demon King again.

Ten days later.

In the base space source energy evolution tower, a big egg split directly, and the Black Wing Bone Demon King walked out of the big egg directly, exuding an incomparably terrifying aura, knelt down in front of Shu Feng on one knee, and said respectfully: "The Black Wing Bone Demon King has seen the Lord!"

Shu Feng's mind moved, and various information about the Black Winged Bone Demon King suddenly appeared.

"The Blackwing Bone Demon King. ”

"Superior Demon King!"

"Hold the power of the bones!"

"Godhead 20. ”

"Godhead Traits: Strength, Defense, Agility, Constitution, and Mental Fix increased by 7000%. Godhead Resistance +20, Immunity to Medium Godhead Deadly Spells. ”

"Master the grasp of the Upper Demon King-level Secret Law Bone Emperor!"

"Strength 800,000, Agility 1,200,000, Defense 800,000, Constitution 1,000,000, Intelligence 800,000, Mental Power 900,000"

"100,000 charms, 2 billion points of demon power, and 20 points of divine soul. ”

Shu Feng looked at the Black Wing Bone Demon King, and a look of satisfaction flashed in his eyes: "Yes, with the Black Wing Bone Demon King!, I can also be regarded as a strong person who has mixed into the Patriarchate of the Holy Source Demon Kingdom!You can use the power of the Holy Source Demon Kingdom to collect source energy treasures for me!World Stone!!"

The Black Winged Bone Demon King is not only a top-level high-ranking demon king, but also one of the elders of the Saint Source Demon Kingdom Elder Association, wielding a huge and incomparably large force.

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