That night, Chen Fan handed over the jade slip with the Extreme Yan True Scripture to Chen Xin, and after Chen Xin studied it, he tested it, and the Heavenly Refining True Law improved a little bit, as if it was already very close to the middle level of the Heavenly Grade!

Chen Xin and the elite of the Chen family boarded a huge spaceship, flew out through a cracked gap, and flew towards the sun!

This ship is purpose-built to cope with extreme environments. The thick shell of the dense formation can resist extreme heat and cold! Because of the heavy shell, the spacecraft flies extremely slowly. After a short distance of a day, they slowly descended to the surface of the Extremely Cold Star! Everyone stepped out of the spaceship. The extremely cold air made many people shiver!

Except for Chen Xin, everyone knew where their limit was, and they all found a suitable place to cultivate! Chen Fan asked Chen Xin, "Let's go to a place with less cold air to cultivate first! After getting used to it, we're going down, okay?"

Chen Xin said: "No, where Grandpa is cultivating, I'll go there!"

Chen Fan glanced at Chen Xin suspiciously, and found that his confident appearance was not a joke. He had seen Chen Xin create too many miracles, and he couldn't help but believe Chen Xin!

Walking into the cave, there were already many people cultivating here, and the further down they went, the heavier the cold air became, and the number of people gradually decreased! After walking for about an hour! At this time, there were no cultivators anymore, Chen Fan said: "This is the place where I cultivated last time, I didn't expect you to really be able to get here, it seems that you don't feel anything yet." My grandson always amazes my grandfather! Okay, I'm going to walk down with you for a while, and I'm at the limit! If you go down, you're going to be alone!"

Chen Xinying said: "Okay! Grandpa, don't be reluctant, the exercises I practice have a great advantage for this extreme environment! Just go down by myself, rest assured that I'll be fine! But I don't know how long I will have to practice, if it takes too long, don't worry!"

Chen Fan said: "Okay! Grandpa has confidence in you! But the spaceship can only stay here for a month, and you must rush back within this time!"

"Yes!" Chen Xinying replied, and walked firmly into the depths.

After walking for another ten minutes, Chen Xin also began to get injured, but he also began to absorb the cold vitality. Injury, recovery, absorption, repetition between. The Nine Tribulations are indestructible and the sixth tribulation is complete!

Time passed slowly, and I don't know how long it took for the cold tribulation to finally come to fruition. At this time, there was no road in front of Chen Xin, and he came to a circular space. The cold air here was already extremely terrifying, even if he had already practiced the cold tribulation, Chen Xin felt a little unbearable, a fist-sized white ball hung in the center of the space, exuding a trace of coldness.

Chen Xin didn't expect that the extremely cold aura of the entire planet would be emitted by such a small ball! Chen Xin knew that he had met the baby again, although he didn't know it, he could see that it was extraordinary, and he subconsciously wanted to put it away. But I thought that if I put away this source of cold energy, the cold energy of the planet would disappear, and the family would have no place to cultivate, so I had to put it here first, and then I would have the best of both worlds, and then I would collect it!

Reluctantly giving up the source of the cold, Chen Xin headed towards the ground! Chen Xin walked to the place where he was separated from his grandfather, and found that his grandfather was still here, Chen Xin breathed a sigh of relief, because any magic weapon here could not withstand the cold, so he couldn't know the time, so he was afraid of delaying the time to return. Now it seems that there is no delay!

Chen Xin looked at his grandfather's appearance, and he wouldn't finish his cultivation in a short time, so he didn't bother him. Check out the changes in the Nine Tribulations after cultivating the Six Tribulations! Chen Xin estimated that his current physical strength was definitely second to none in the Immortal Body Stage! And the art of change was obviously not the right time to experiment here, so he had to wait until he returned to Xinxing!

At this time, Chen Fan had already finished cultivating! Seeing Chen Xin, he asked, "It's good to rush back, it's time to return in one day! How deep have you walked in so many days?"

Chen Xin said: "I should go to the deepest part, there should be the center of this planet!"

"What did you find?"

Chen Xin said: "Where is there a small white ball that exudes a terrifying cold aura! It is an amazing thing at first glance! If it weren't for the fear that the family would not have cultivated in the future, I would definitely take it away!"

Chen Fan thought for a long time and said, "The white ball, the cold air emitted can spread throughout the planet. Could it be ?、、、?"

Chen Xin asked, "Does Grandpa know what it is?"

Chen Fan said: "If it's right, it should be the ancestral stone!"

"Ancestral Stone!"

"That's right! Legend has it that when heaven and earth first opened, everything in the world was the original origin! It has endless purest energy! It is said that in the earliest cultivation realm, there were five major cultivation planets, each with an ancestral stone. It represents the five most basic forces in the world. Later, it disappeared in the Xiuzhen Tribulation, and the one you found should be the Cold Ancestor Primordial Stone that represents the cold. Although it is not the most basic energy ancestral stone, it is also amazing!" Chen Fan said.

Chen Xin asked, "What's the use of that?"

Chen Fan was also not very sure and said: "It is rumored that cultivating near the ancestral primordial stone can absorb the purest primordial force, purify one's own original force, and increase the cultivation speed!

Chen Xin said anxiously: "Then I'll go and bring it back to Xinxing!"

Chen Fan stopped: "Don't! Let's not talk about whether your storage space can withstand the cold power of the ancestral stone." Take back Xinxing if you don't have a proper container to hold it and suppress its coldness. Xinxing, which is not much bigger than this planet, will soon become a cold world like this planet!"

Chen Xin thought about it, there was no problem with the outside of his storage ring, but it was really uncertain whether the inside could withstand the extreme cold. So he said, "What then?"

Chen Fan said: "We returned to Xinxing and made every effort to develop a container that can block the cold. After the development is successful, we will come to take the ancestral rough stone. ”

Chen Xin thought about it for a while, so it had to be so.

On the journey back to Xinxing, Chen Xin thought of something that he had overlooked, that is, his storage ring! This storage ring is called the Qiankun Ring as recorded in the Heavenly Refining True Method. The materials are very ordinary, and the refining method is not difficult. Chen Xin successfully refined it in one attempt, and then put one on his hand after dripping blood to recognize the master. Later, Chen Xin discovered that the Qiankun Ring could actually change with the growth of its realm. First of all, the capacity, from the initial 10 square meters to now a full 100 kilometers, the degree of solidity is even more amazing. Survive one calamity after another with Chen Xin, without any damage. The strange thing is that Chen Xin has been ignoring his magic, and he didn't realize until he talked to Chen Fan today!

In Chen Xin's doubts, the spaceship returned to Xinxing. Chen Xin had no choice but to put aside the doubts of the Qiankun Ring for the time being. After getting off the spaceship, Chen Fan kept looking for someone to study the device to isolate the cold! Chen Xin went to his father to check the progress of the restoration of the starry sky warship!