Neither Xiao Ning nor the Four Spirit Tortoises expected that the Xuanwu Origin hidden in the Xuanwu Hall turned out to be a huge tortoise shell.

Far from being as simple as a tortoise shell, there is also a gold origin wrapped around the white tiger origin, and this tortoise shell is also wrapped around the water origin. It was a dark blue glow that flowed around the giant tortoise shell.

"Boss, do you say this is the Xuanwu Origin? It seems to be much bigger than the White Tiger Origin!"

The Four Spirit Tortoises were a little dazed, it knew the power of the Holy Beast's origin. But such a huge Xuanwu origin in front of him was two circles larger than it, so how could it absorb it until long?

"The four holy beasts have their own strengths, the White Tiger Holy Beast is good at controlling the power of the five elements of gold, but this Xuanwu Holy Beast is good at the power of water, the power of gold is characterized by tenacity, so the origin of the White Tiger Holy Beast is also very tough, and the power of water is characterized by Huairou, and more importantly, it needs a storage vessel, if I guess correctly, this huge turtle shell is actually a storage vessel!"

Xiao Ning circled around the huge tortoise shell, and then analyzed the four spirit tortoises.

"Boss, according to what you say, isn't that more trouble, you see that my handsome tortoise shell is strong enough, even if it was attacked by a few golden gourd puppets before, there is still no damage, how can the tortoise shell of this Xuanwu Holy Beast be harder than mine, or can I break this tortoise shell?"

After listening to Xiao Ning's introduction, the voice of the Four Spirit Tortoises became more bitter, whether this tortoise shell was the origin of the Xuanwu Holy Beast or the vessel used to contain the Xuanwu Origin, it was equally difficult for it to refine or break it.

"Since the Xuanwu Holy Beast has left its origin in the tortoise shell, then it should think of this, if I am good, the Xuanwu Holy Beast should think of a way that only his heirs can break through this tortoise shell, so as to ensure that the power of the origin does not flow out!"

Xiao Ning continued to analyze, and seemed to have grasped a line, perhaps this line was the only way to crack the tortoise shell.

"Boss, you better be straightforward, what do you want me to do?"

The eyes of the four spirit turtles were blank, although Xiao Ning's analysis was indeed reasonable, but he really didn't know what ability he had to break through this tortoise shell.

"I mean, which part of your body do you think is the hardest?" Xiao Ning reminded.

"It should be a tortoise shell, but my tortoise shell shouldn't be as good as the tortoise shell of the Xuanwu Holy Beast!" said the Four Spirit Tortoise.

Xiao Ning frowned slightly, he felt that the Four Spirit Turtles were usually very smart, not why they had become stupid now, so he could only remind again: "You bite your turtle shell with your teeth to see where you get acquainted?"

After listening to Xiao Ning's words, the Four Spirit Turtles suddenly realized: "I understand, I'll try it!"

After the Four Spirit Tortoises finished speaking, they climbed directly onto the huge tortoise shell and began to gnaw.

Xiao Ning had a smile on his face, in fact, he couldn't be sure, but the four spirit turtles' full of spiritual fangs were indeed amazing, and it was estimated that even if it was an artifact, under that mouthful of spiritual teeth, it could not be intact. You must know that when the Four Spirit Turtles were still very young, that mouthful of spiritual teeth could easily break through his Dacheng Vajra Body. As the strength of the Four Spirit Turtles increased again, Xiao Ning believed that the power of its Spirit Teeth would inevitably increase again.

In fact, Xiao Ning also has a way to break this turtle shell, but it is a big deal to use his mysterious seed, and then urge the Divine Sword to cut off the tortoise shell with all his might. However, doing so would most likely defile the origin of the Xuanwu Divine Beast. Therefore, the best way, and the most natural and instinctive method, is to let the four spirit gods and ghosts who have the blood of the Xuanwu Holy Beast and have a mouth full of spiritual teeth gnaw it.

This method is a bit absurd, but it is the most suitable method in Xiao Ning's heart at the moment.

Click......

As the four spirit tortoises gnawed, there was a clicking sound on the huge tortoise shell. The most four spirit tortoise, it knows very well which place the tortoise shell has the weakest defense, so it soon found a breakthrough, the thick tortoise shell was killed by the four spirit tortoises to open a small gap, although the gap is very small, but whether it is the four spirit tortoises or Xiao Ning or the four spirit tortoises looking at this small gap, their eyes are full of excitement.

"It seems to be really effective, this is your creation, and it is also my creation, come on!"

Xiao Ning's figure was suspended in mid-air, and he said lightly.

The Four Spirit Tortoises didn't speak, but the speed of the bite became faster, and he didn't waste the fragments torn off the tortoise shell, and swallowed them directly into his stomach. These tortoise shells are extremely hard, that is, the four spirit turtles have a mouthful of spiritual teeth, otherwise who can break it, although this thing is not as good as the Xuanwu origin for the four spirit turtles, but it also has huge benefits.

Burst......

After about half an hour, the Four Spirit Tortoise finally bit through the tortoise shell, and then a light poured out from the hole in the tortoise shell, and a fragrant breath instantly diffused.

"Tianji Tower, receive!"

The moment the origin flew out, Xiao Ning immediately sacrificed the Heavenly Machine Tower, and then the light flashed, collecting the Xuanwu Origin and the huge tortoise shell into the Heavenly Machine Tower.

On the one hand, this tortoise shell is the armor of the Xuanwu Origin, and on the other hand, the Xuanwu Origin is also the source of the tortoiseshell's power. When the tortoise shell was not broken, Xiao Ning felt that he couldn't shake it, even the Heavenly Machine Tower couldn't put it in at all, but when the tortoise shell broke and the Xuanwu Origin gushed out, Xiao Ning felt that the power of the tortoise shell and the power of the Xuanwu Origin were out of balance in an instant, and this was the opportunity he had been waiting for, so he did not hesitate to put the tortoise shell and the origin into the Heavenly Machine Tower.

After collecting the tortoise shell and the Xuanwu Origin into the Heavenly Machine Tower, Xiao Ning breathed a sigh of relief, after all, the Xuanwu Hall was not something he could control, so it was safer to still have the Heavenly Machine Tower.

After doing everything well, Xiao Ning did not delay, and the Heavenly Machine Tower shook again and included Xiao Ning and the Four Spirit Turtles.

In the following time, Xiao Ning and the Four Spirit Tortoises began to refine the Xuanwu Origin, as well as the Water Origin attached to the tortoise shell.

For Xiao Ning, the origin of Xuanwu is still secondary, and the origin of water is obviously more important, although he has comprehended the mystery of water, but it is not the origin, with the power of the origin, Xiao Ning can comprehend the small world of water in the future. Of course, this is not something that Xiao Ning can do now, he needs time to grow.

It took a lot of time to refine the origin of water and the origin of Xuanwu, and it took Xiao Ning and the Four Spirit Turtles a full three months to refine the power of this origin. Of course, Xiao Ning and the Four Spirit Turtles had only refined a part, and the remaining part was reserved for Ling Xianxian, Qin Hongling, and Chu Feifeng.

"Boss, now I feel that my whole body is full of strength, and if I continue to develop like this, it won't be long before I can grow into an immortal beast!"

The expression of the Four Spirit Tortoise was excited, it had never imagined that it had grown to such an extent in just a few months after it had been a juvenile for thousands of years.

"Well, I think in the next time, the Qinglong or Vermilion Bird Vault should also be opened, we have wasted a lot of time, let's search this Xuanwu Hall first!"

After Xiao Ning finished speaking, his mind moved, and his figure Jade Four Spirit Turtle reappeared in the Xuanwu Palace.

"There is an aura, very strong, he is coming towards us!" Before it appeared, the Four Spirit Turtles felt a trace of strangeness, after refining most of the Xuanwu Origin, the Divine Thoughts of the Four Spirit Turtles had reached a very powerful point.

"Humans, ancient demons, why are you here?"

Not long after the Four Spirit Turtles' words fell, a figure appeared on the Xuanwu Palace.

"Who are you, and why are you here?"

Xiao Ning felt that this person was very weird, or very weird, in short, it felt inappropriate, but as for what was wrong, he couldn't say clearly.

"I am the Emperor of Ten Thousand Demons, you can call me the Demon Emperor, my name is Sin!"

The strange man spoke slowly.