After walking for about an hour, they finally arrived at a place and were stunned to see it.

"This should be what the two heavens of ice and fire are talking about. Ning Yu sighed.

It was a huge cave, with a crimson flame surging at the bottom of the cave, and the temperature was much more terrifying than the previous molten lake. And at the top of the cave, it was cold and snowy, and it was snow-white.

"Fire and water are incompatible, but it's a miracle that this concept has been broken here!" Jiang Ziyan also exclaimed.

"Yes, it's unbelievable. The reason why the lower half of the ice volcano outside is red and the upper half is snow-white, which is probably caused by this. Ning Yu nodded.

"You see, there are a lot of blue ice flowers there, and its flowers are white and red, and the grade is definitely very high!" Jiang Ziyan looked at the red and white intersection of this cave, where there were many blue ice flowers.

Ning Yu's expression was excited, he didn't know if the crimson flame was a heavenly fire, but the success rate of refining the Jin Yuan Pill or the Soul Suppression Pill would definitely increase greatly.

Coupled with the fact that the Red Flame Grass he obtained and the Blue Ice Flower here were of very high grade, then he was at least eighty percent sure that he would be able to refine these two elixirs.

"That place is cold and hot, even the red python before doesn't dare to approach, if you are not sure, don't force it, I also know where there is a blue ice flower, where the danger factor is low. Of course, the grade is certainly not so good. Chi Xi said.

Ning Yu and Jiang Ziyan all frowned slightly when they heard this, and Jiang Ziyan said, "It's really too dangerous here, why don't we retreat and go somewhere else." ”

Ning Yu thought for a while and said, "How can you know if you don't try." Moreover, the environment here is very suitable for cultivation, I can use the hot and cold here to temper my physical body alternately, and you can use the cold air above to cleanse your innate sword fetus, maybe we can break through without refining any pills. ”

Jiang Ziyan's eyes lit up, and she nodded: "This is indeed a good way!"

"Without further ado, let's get moving. Ning Yu said to do it, and he ran directly towards the place where the hot and cold met.

In a few moments, he stepped into the place, and suddenly a terrible wave of heat came over him, burning him so much that he almost melted. But after a while, he suddenly felt a cold air that seemed to freeze everything, and he almost lost consciousness.

"Hot and cold are also a manifestation of yin and yang, if I can train a body that is not invasive by heat and cold, I can also be fearless in the face of the middle of the universe. Ning Yu's eyes were firm, and he continued to walk towards the center of the hot and cold intersection.

But before he could take two steps, he felt like he was reaching his limit. Therefore, he could only sit down, deduce the secret of opening the heavens, and refine his physical body.

At this time, his body is cold and hot, and all he has to do is to maintain the balance of heat and cold in his body, so as not to burn or freeze to death.

And if he can switch between hot and cold at will in his body, then he is considered successful. At that time, he will be in the center of the intersection of hot and cold here, and he will be free to control both forces and not let himself die.

As for Jiang Ziyan, she stepped directly into the icy and snowy world, and the innate sword fetus rushed out of her body, constantly smashing the ice cubes in front of her.

The ice cube was like a 10,000-year-old ice spirit, and her sword smashed through it, leaving no trace on it at all.

However, Jiang Ziyan was not discouraged, but extremely excited. That innate sword fetus was invaded by the cold qi here, and its strength and speed were decreasing, but if Jiang Ziyan could absorb this cold qi into that innate sword fetus, then her sword fetus would be indestructible and indestructible, and it would become peerless and sharp.

Chi Xi's eyes widened when she saw those two people so crazy. Because the red python is much more powerful than them, but every time I come here, I can only sigh and dare not enter those two places at all.

"Forget it, idleness is idleness, I'll also go into that flame and swallow some flames. Chi Xi no longer cared about Ning Yu and Jiang Ziyan, and jumped into the crimson flame with a swish, and opened his mouth to swallow the extremely terrifying flame, which made people stunned.

Of course, it didn't dare to enter the center of the flames, but it was shocking enough. If Ning Yu and Jiang Ziyan hadn't settled down yet, they would definitely drop their jaws when they saw this scene, this rabbit was so terrifying that it could even devour that terrifying flame.

The red rabbit swallowed and fell asleep directly, and it was floating in the flames, which was amazing.

At this time, Ning Yu was scorched by the heat and resisted the invasion of the cold, his body was half red and half white, and the pain made people's legs weak just thinking about it.

"Cold represents yin, heat represents yang, if my dantian is still there, I can use the dantian to convert this heat and cold and then absorb it, but now that my dantian is broken, I can only use my body as a medium to convert this cold and heat. A thought flashed through Ning Yu's mind, and then the heat in his lower half slowly moved up through his body, while the cold in his upper half slowly moved down.

When the two qi converged, he felt that his physical body was about to be annihilated, and the pain he couldn't help screaming in his meditation.

But no matter how painful it was, he kept the spiritual platform clear and got through it with difficulty.

At first, the intersection of cold and heat in Ning Yu's body was very slow, but slowly the speed was accelerating, and in the end, his physical body returned to normal, but it was different from before, his body exuded a terrifying aura, and the surface of his body was plated with a layer of golden light, shining.

Ning Yu adjusted to the heat and cold of that place, so he got up again and walked deeper.

The more he walked inside, the more terrifying the heat and cold became more and more terrifying, making Ning Yu linger at the Ghost Gate every time he stopped, but he carried it with difficulty.

Ten days later, Ning Yu had unknowingly arrived at the center of the intersection of hot and cold, which was the most terrifying place.

As soon as Ning Yu stepped there, the lower half of his body was directly scorched, and the upper part of his body was frozen into ice, and he lost consciousness.

"Suppress!" Ning Yu roared, not urging the body's functions, directing the hot air in the lower half upwards and moving the cold air in the upper part downward.

At this moment, Ning Yu is hot and cold, and he may die violently at any time. But he frantically performed the secret of opening the heavens, broke the limits of his physical body again and again, broke and then stood up, and finally carried this death tribulation three days later.

In the past three days, Ning Yu made a very terrifying movement, which made Chi Xi, who was sleeping, wake up. When she saw that Ning Yu had actually entered the center of the intersection of hot and cold, her jaw was about to drop in shock.

"Who the hell is this person, who did he succeed!" Chi Xi said in shock.

At this moment, Ning Yu's golden light was shrouded, and the boiling blood qi collapsed so that the hot and cold qi were directly dispersed, and the hot and cold qi there could no longer help him.

When Chi Xi looked at Jiang Ziyan, he was also shocked, so at this moment, Jiang Ziyan's innate sword fetus exuded a billowing cold aura, and it passed through the ice, directly smashing the ice into a crack, sharp and boundless.

Jiang Ziyan's temperament has also changed a lot, she is like an ice beauty, the more ice and clean she becomes, the more dusty she is, she is as sacred and inviolable as the Guanghan Fairy.

"This sister I newly recognized is not simple!" Chi Ximei's eyes widened, and her heart was extremely happy.

Ning Yu stood up at this time in the center of the intersection of hot and cold, and a confident smile appeared on his face, because he had broken through the bottleneck and entered a higher realm of physical strength.

"I can already cultivate the Heaven Stepping Seal, as long as the Heaven Stepping Seal is practiced, no matter who it is in the middle of the Yu General, I can explode with one punch. "Ning Yu is full of spirits, this life and death experience is worth it.

Then he walked casually to the blue ice flowers and scavenged them all. Of course, he didn't dig up their roots, and he didn't leave a line in everything, and he couldn't be too desperate, otherwise he would be easily damned.

Although Ning Yu didn't believe in this, he had to leave a little bit for the latecomers, and he couldn't cut off their hope.

Jiang Ziyan also woke up at this time, and her powerful aura was not much weaker than Ning Yu.

"How's it going?, can you advance?" Ning Yu walked over and asked.

"Anytime!" Jiang Ziyan had a bright smile on her face.

"Then what are you waiting for?" Ning Yu was slightly stunned.

"Hehe, wouldn't it be better to surprise some people?" Jiang Ziyan said with a sinister smile.

"Haha, you're so bad!" Ning Yu laughed, this Jiang Ziyan is not easy to mess with, she can break through to the realm of the middle stage of Yu Jiang at any time, but she didn't do that, but wanted to pretend to be a pig and eat a tiger.

"Tomorrow's martial arts competition is about to start, do you still want to refine the pill?" Jiang Ziyan asked.

"Refining, but not now, and we have a breakthrough now, I want to enlarge the goal a little bit and refine a higher-grade elixir, but I have to go back and think about it. Ning Yu said.

Then he took out a part of the blue ice flower and gave it to Jiang Ziyan, and said, "This thing is very helpful for cultivating the divine soul, you take it." ”

When Chi Xi saw the blue ice flower, his saliva was swallowing, and a pair of big eyes looked at Ning Yu with hope.

"Hehe, call me big brother and I'll give it to you!" Ning Yu looked at Chi Xi with a dark smile on his face.

As soon as Chi Xi heard this, he kept grinding his teeth, glared at Ning Yu fiercely, and said, "I brought you here in this place, why don't I have a share?"

"I didn't say you didn't have a share, you have a share by calling me big brother. Ning Yu said.

Chi Xi bared his teeth and shot directly from the ground, and then kicked his four hooves on the door of Ning Yu's face.

Ning Yu had already prepared and stretched out his hand to block, but he was still kicked out by the red rabbit and smashed to the ground.

Ning Yu was speechless, his current physical strength was that General Yu couldn't knock him down in the middle of the term, how could this little rabbit have such terrifying power.

"It's against the sky!" Ning Yu stood up and looked at Chi Xi's eyes with an unprecedentedly hot eye. And when Chi Xi saw Ning Yu's eyes, he swooped into Jiang Ziyan's arms, and kept waving his teeth and claws at Ning Yu.

"Little rabbit, come here, you come with me, I'll give you all the blue ice flowers!" Ning Yu tempted.

"Get out of you!" This time it was Jiang Ziyan's turn to furious, and a sword qi smashed into Ning Yu's body fiercely, blasting him away again.

This red rabbit is a treasure, how could Jiang Ziyan let Ning Yu abduct him!

Ning Yu ate a lot of dust and could only give up. However, he still gave Lan Binghua's share to Chi Xi. And Ning Yu, the skin of the red python, also peeled off half of it and gave it to Jiang Ziyan, and asked her to take it back to make a few clothes, after all, this snake skin may not be able to break it with all his strength in the middle of the day, and if you wear it on your body, you will have more protection.