I don't know how many thousands of years of ice in this place have accumulated, and it is incomparably hard. However, the two people present were also extraordinary, and they used magic weapons to dig out an ice hole.

As for Chu Ziheng, it is impossible for him to dig tunnels, it is impossible to be lazy to death, he is only responsible for cheering!

"Come on, come on, dig hard. Say you, spit bubbles. ”

"Come on, burn your calories!"

Forget the first sentence, the second sentence is really not understood, and he pulled Chu Ziheng to ask what the calories are?

"In short, it's a mottled thing in the foundation of your practice that hinders the speed of your practice. If you dig a tunnel, you can effectively reduce it. ”

Tu Bao sneered: Hehe, I believe in your ghost.

However, after extending down more than ten meters, the ice track came to a complete standstill.

In the underground of this area, there are large areas of formations, which should be left by the inheritance of the holy land before the Ice and Snow Palace, although it has passed for I don't know how many thousands of years, but it is still mysterious and profound, and it is extremely complicated.

"What should I do with this formation?" Tu Bao felt dizzy at first glance, it was too complicated.

"I really can't do it, so I can only try." Chu Ziheng pondered for a long time, and felt that it was possible to break it by using the knowledge of the formation pattern in the Black Emperor's memory.

"This kind of terrain is called True Dragon Nirvana, and now that the dragon qi is so strong, it is estimated that Nirvana is a matter of the past few days, and we must hurry up. Otherwise, the next time such a good opportunity, the devil knows when. ”

This time, Chu Ziheng really didn't joke, and he didn't pit his teammates, he still knew which was more important, and now the first task was to break the formation patterns in the underground.

Although the Black Emperor understands all the knowledge of formation patterns, and he can be regarded as half a formation master, he lacks experience. Therefore, he could only lie in the cave and seriously study the method of breaking the formation.

As a result, this party was two days and one night, and he finally found some loopholes in this formation due to its age and the dissipation of spiritual energy.

The consumption of studying the formation pattern was greater than he expected, not only physically, but also reflected in the mental haggardness, fortunately, he had just swallowed a source dragon fruit, which turned into a steady stream of divine power at this time, and could nourish his divine sense.

After that, it took him another day and a night to completely tear open a crack in the formation, to the point where it was just right to pass through.

This time, Tu Pao and Fan Jianqiang didn't have anything to say, Chu Ziheng worked hard for three days, not to mention the hard work, he actually broke the forbidden formation left by an ancient holy land, and it could be seen that he did have something.

Through the cracks in the formation, several people went deep into the depths of the formation, only to find that there was a cave inside, and they fell directly into a vast and boundless earth palace with no end in sight.

The magnificent underground palace exudes antiquity, as if it is from distant eternity, covered with a layer of dust, and everything such as the stone room and the stone hall is full of traces of the passage of time.

There were a lot of strange stones in the dungeon, shining brightly, illuminating the surroundings, so they could see it all clearly.

Then, Tu Pao and Fan Jianqiang clearly saw that Chu Ziheng was actually picking at those shiny stones, and only picking one after another, so the surrounding light was just a little dim, but it didn't have a big impact.

Hehe, this dog even knows how not to overexploit and to be sustainable...... They were speechless......

The dragon's energy was turbulent, like a river, crashing underground. Bathed in it, you can feel the incomparably pure heaven and earth energy surging, and if you practice here, I am afraid you will be able to get twice the result with half the effort.

"Breath of the Divine Origin!"

Chu Ziheng's expression moved, and he stopped picking at the gems in his hand, and in the surging dragon qi, he felt the overflow of the divine source essence, and it was obvious that there was a peerless treasure source hidden in the depths of the underground palace.

After all, the dog's nose is more smart, and before Tu Bao and Fan Jianqiang could react, Chu Ziheng had already run wildly, turning into a black lightning bolt and disappearing from the field of vision of the two of them in an instant.

"Why did he run?" The two are still confused.

"I don't know, but I think we'd better run after him."

This is the experience that the two of them have summed up in the past few days, as long as Chu Ziheng does something, then follow it, and the survival rate will definitely be greatly improved.

After all, Chu Ziheng's attributes of seeking advantage and avoiding harm seem to have been developed to the extreme, when he encounters treasures, he runs at the forefront, and when he provokes the enemy, he runs at the forefront when he escapes!

The two of them dragged the half-dead Ji Ziyang forward, until they felt the strong aura of divine origin, and they just wanted to say "damn it", this damn big black dog......

When the two caught up with Chu Ziheng, they found that he was sitting alone in front of a vast abyss.

This vast abyss, extremely empty and silent, seems to be connected to the netherworld, like a bottomless pit, as if it can devour people's minds and make their hearts throb.

"Where is this?" Tu Bao couldn't help but take a few steps back and exclaimed.

Chu Ziheng was very calm at this time, his eyes stared at the endless darkness in front of him, and said lightly.

"The most terrifying Jedi in heaven and earth - the Nest of Ten Thousand Dragons."

Under the abyss of endless darkness, the dragon qi was like a tide, constantly rushing upward, occasionally there was a divine brilliance, and several divine source particles were washed out, crystal clear, shimmering and shining. Obviously, the abyss definitely contained a large number of Pure Divine Source Blocks.

"Do you think there's an extremely demonic aura here?" Fan Jianqiang felt a little hairy behind his back, and asked weakly.

Chu Ziheng nodded, this kind of aura came from the primeval realm, after all, this Ten Thousand Dragons' Nest was the nest of the primeval royal family, and the aura he felt after touching the prohibition in the purple mountain that day was also similar.

Not only that, but when they were in front of the light cave in the underground world, the breath they felt originated here.

This made him have a bold idea, could it be that the mysterious underground world could lead to all the lairs of the primeval royal family? That... What about the Purple Mountain?

Chu Ziheng didn't think much about it, got up and said: "This is called the Ten Thousand Dragon's Nest, and each mountain range is actually a dragon vein, which finally gathered together. The abyss under our feet should be safe, and the dangers are in the Ten Thousand Dragons' Lair. ”

"It's still too far away from the Ten Thousand Dragons' Nest, so I can't figure out more details."

Hearing this, Tu Pao and Fan Jianqiang glanced at each other, they had already understood what Chu Ziheng meant, and now it was time to express their position.

Chu Ziheng turned his head, and said with unprecedented seriousness on his face: "I suggest, enter the abyss!" ”