Yao Yi also just understood this point, it turned out that not all skeletons were born after the death of human beings.

And the next change is a change that Yao Bai was pleasantly surprised.

First of all, the white bone skeletons have generated their wisdom in the interface promotion.

The heaven and earth elements in the skeleton source have emerged after merging with the system space, and a new element has emerged - the fire element.

Soon after the birth of the fire element, a new skeleton race appeared, this new race due to the promotion of the interface, was named by Yao Fei - Fire Skeleton Clan, their bones are fiery, with strong toughness, and they carry the fire element.

After Yao Bai found them, he was also pleasantly surprised, and for the entire vein, the most embarrassing thing was smelting.

Yao Yi had nothing to do about this aspect before, and this emerging Fire Skull Clan just made up for the vacancy in this area.

......

After fifty-four years, the interface is still steadily promoted......

And Yao Bai also had an amazing transformation during this time, first of all, strength, in the case of the shortage of resources in the skeleton source, Yao Bai was promoted to the state of the peak of the high-grade silver skeleton.

At this moment, Yao Yan's momentum was calm, revealing the slightest hint of domineering, and his momentum rose steadily, without a trace of decadence.

And because the two interfaces are fused together, Yao Tong is more comfortable with the laws of heaven and earth, after Yao Bai's research, and the confirmation of the system, the system space has been integrated with the skull source, and the current skull source is the system space, or a new world.

Compared to Yao Yan's transformation, the skeletons in the source area have also undergone an amazing transformation for such a long time;

The first is the pinnacle bronze bone skeleton, which has been promoted to the silver bone skeleton one after another under the nourishment of the soul power that has emerged from heaven and earth within fifty years, as well as the nourishment of soul stones.

Among them, the big guy and that special little guy were promoted to the intermediate silver skeleton stage during this time.

And those who were promoted to bronze bone skeletons when Yao Bai obtained the law of heaven and earth were also only a stone's throw away from low-level silver skeletons.

At this moment, the source of skeletons is full of copper skeletons, tens of thousands, a large number of copper skeletons are blooming everywhere, and the once rare copper skeletons have become a common existence.

If the former lord returns to the Skull Source, he will be surprised, the former Skull Source no longer exists, and now all that is left is Yao Yan's Skull Source, a place to be reborn!

Today's interface territory is more than twenty times that of the previous skeleton source, which is still thanks to the laws of that part of the demons, otherwise the evolution of the interface would not be so amazing.

In particular, the birth of a new skeleton race, the Fire Skull Clan, has brought a new attempt to the interface.

And the initiator, the demons, knew nothing about this situation.

Yao Bai looked at the source of the skeleton outside that had gone through more than fifty years and was still being promoted, as well as the growth of his power over the years.

Now through the changes in the laws of heaven and earth, Yao Yi has already felt the promotion that is about to be completed......

Over the years, Yao Yi has only been working hard to improve his strength, and since he came to this world, Yao Bai has only been trying to live, and after meeting Ferrenzi, he has begun to change quietly.

"Now that I am the king, it must be my mission to fight for a little living space for the skeleton clan......"

Yao Bai muttered to himself, Xiao Qi, who was in the fire of Yao Qian's soul, listened to Yao Yan's words, and couldn't help but smile slightly, thinking:

'It's your mission, and it's my mission......

Thinking of this, Xiao Qi sat cross-legged and squinted his eyes again.

Time passed day by day, Yao Yi was not immersed in cultivation, and every day he was feeling the changes in the laws of heaven and earth.

On this day, the laws of heaven and earth trembled, and the laws of the interface became more and more condensed, Yao Yi sat on the bone chair, the soul fire flickered, and he naturally felt this change......

The tremors became more and more frequent, and this situation made the skeletons in the entire skeleton source place put down what they were doing and looked up at the sky, not knowing why;

"Xiao Qi, the promotion is finally complete!"

Yao Qi felt this change, and couldn't help but feel a burst of excitement in his heart, Xiao Qi also felt this change through Yao Bai's perception, and Xiao Qi, who had been silent for a long time, said:

"It's finally going to be done, and now your power is already a force to be reckoned with in the entire undead world, and the undead world will rise again...... I'm looking forward to seeing you accomplish our two common goals!"

"It's going to be done, for you, and for ...... Myself. ”

Yao pretended to look up to the sky and whispered.

......

The tremor of heaven and earth lasted for more than half a month, and finally heaven and earth began to return to calm.

After the condensed law of heaven and earth was promoted, a soul storm blew again, and all the skeletons that blew came out comfortably, like a spring breeze......

Yao Tong walked out of the palace, after this period of time the interface trembled, all the wisdom skeletons had gathered around the palace, and they felt Yao Bai's appearance at once;

Under the leadership of a group of silver-bone skeletons, like the wind blowing a wheat field, tens of thousands of skeletons knelt down one after another, shouting loudly:

"Visiting Skeletron ......"

Suddenly, a huge wave of sound was heard throughout the northern region.

Yao Bai looked at the huge group of skeletons below, dozens of silver bone skeletons kneeling in front of him, followed by a large number of bronze bone skeletons, and the huge white bone skeletons at the end were even more numerous......

Yao Bai felt the faithful faith of the skeletons below him, Yao Bai opened his mouth with the power of the laws of heaven and earth, and said:

"You have also discovered the changes in the source land, our source land has been promoted, and in the future, the strength of the skeleton clan will rise again, return to the undead realm, and fight for the place of survival, you ...... Are you ready?"

Yao Yan's words carried the power of the laws of heaven and earth, whether it was the skeleton group next to the palace or the skeleton clan far away on the edge of the source land, they could hear what Yao Yan said.

For these words, there was a burst of excitement, with a strong longing in their eyes, and the skeletons near and far raised their heads one after another, and said loudly in the direction of Yao Yan:

"Fight, the place of survival! Fight, the place of survival......"

Yao Yi was also full of excitement for their passionate response, and he did not disappoint him after all.

"For the sake of our common goal, I will descend to the realm of the undead in the near future! The subordinates will stay, the palace will deliberate, and the army will be ready !!to go on a later day."

After Yao Yan said these words, he turned around and returned to the palace again, and as he left, all the skeletons also got up, and the silver skeleton walked towards the palace with the footsteps of the person to be raised.

......

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