"The heart of the king, also known as the divine fire, is the root of the soul, also known as the heart fire, the heart fire is endless, the soul is not extinguished, the heart of the fire, with the sea of qi as the furnace, with the divine thought as the foundation, with the heart as the nourishment"

Ning Yuan pinched the seal in his hand, and his true qi operated, according to the method of heart fire sacrifice and refining in the "Golden Seal and Jade Letter", he continued to absorb the surrounding fire attribute elements, and his divine soul continued to grow, and the sea of qi was full of fire.

"Heart fire, condensation!"

Ning Yuan let out a low snort, and suddenly there was a bang in the sea of qi, and a small flame appeared, and the flame that had just appeared was like a lit match, very weak, and even kept beating, and could be extinguished at any time.

Ning Yuan condensed his mind and calmed down, his soul continued to nourish, and the flame continued to grow, gradually growing to the size of a candle flame, and then it began to stabilize dìng, no longer flickering, suspended in Ning Yuan's sea of qi, like a little light in the night.

"The heart is on fire!" Ning Yuan exhaled a breath of turbidity, slowly opened his eyes, and there were even flames dancing in his eyes, and then suddenly disappeared, and the momentum on Ning Yuan's body slowly dissipated.

Standing up, Ning Yuan walked out of the thatched house, calculated the time in his heart, and found that it had been a full three days, and he had spent three days and three nights refining his heart fire this time.

Of course, the current Medicine King Secret Realm is not perfect, there is no difference between night and day for the time being, Ning Yuan can only calculate according to the time of the outside world, as a master of refining the gods and returning to the void, although he is not deducing, it does not mean that he cannot calculate the heavenly machine at all.

"Zhu Guo is really about to ripen." Ning Yuan came to the edge of the vermilion fruit tree, looked up, and saw the fiery red vermilion fruit. There was already a hint of gold. It's just that this hint of gold is not obvious. Only when this strand of gold completely covers the whole vermilion fruit can the vermilion fruit be considered completely ripe.

After walking around the valley, Ning Yuan went back to the thatched hut again to close his eyes and cultivate, and he didn't know how long it took, when suddenly Ning Yuan's mind moved and he opened his eyes.

At the moment when Ning Yuan opened his eyes, a black dot suddenly appeared in the sky above the valley, and the black dot gradually enlarged. What caught my eye was a black dragon that was 100 meters long, the black dragon's whole body was covered with mist, and a huge dragon head loomed in the clouds.

In the blink of an eye, the hundred-meter-long black dragon landed in the valley, and the huge dragon eyes greedily looked at the zhu guo on the zhu fruit tree, and the dragon's mouth actually dripped harazi.

Maybe it was because Zhu Guo completely attracted the attention of the black dragon, or maybe the black dragon didn't care that there might be people in the valley at all, and the huge dragon's mouth opened and was about to devour the Zhu Guo on the Zhu Guo fruit tree.

"What a gluttonous black dragon." Ning Yuan, who was standing at the door of the thatched house, showed a smile on his face, and suddenly pinched a stamp in his hand. It's the dragon trick.

The black dragon who was devouring Zhu Guo suddenly shuddered, and his huge body was directly paralyzed on the ground in the valley. It began to tumble violently, and the surrounding trees were also crushed by the dragon, and the boulders on the mountain peaks rolled down.

"Ning boy, I know it's you, stop." The dragon's divine thoughts were transmitted, and there was a slight tremor in the divine thoughts, I have to say that this dragon trick is definitely the nemesis of the black dragon, even if it is as powerful as an earth-level spirit beast, a black dragon comparable to a Jindan master, it can't withstand the torture of the dragon trick.

"Hmph, what a bold man, he dared to come and steal my Zhu Guo." Ning Yuan walked out slowly, snorted coldly, and looked at the black dragon rolling on the ground.

"Ning boy, I'm also a real dragon anyway, what's wrong with eating a few wild fruits?" The black dragon's body slowly rose, and the huge dragon head looked at Ning Yuan, passing on his divine thoughts, and his divine thoughts were very unwilling: "As the saying goes, you can't have a donkey to grind and not let the donkey eat, right?" ”

"Ha, I know a lot." Ning Yuan also conveyed his divine thoughts: "I didn't not let you eat, the elixir spirit beast in the secret realm, you don't know how much you have stolen, if I really didn't let you eat, I would have put you into the Demon Suppression Tower to suppress it." ”

"You" The black dragon was very aggrieved, greedily looked at Zhu Guo not far away, and discussed with Ning Yuan: "Ning boy, I don't ask for much, it's just a dozen, how about it, as long as I let the old dragon eat a dozen Zhu Guo, I promise that I will never pay attention to the elixir spirit beasts in the secret realm in the future." ”

"Dozen?" Ning Yuan couldn't cry or laugh: "You have such a big appetite, there are only more than thirty vermilion fruits in total, you will have to open your mouth to a small half, it is absolutely impossible, leave obediently, lest I use means." ”

"Ten, ten will do." The black dragon continued to plead: "Just ten, the old dragon I practiced in my old age, and I have a strong foundation, although I have only advanced to the ground level for a short time, but ten vermilion fruits are enough for me to advance again, my strength has increased, and it is also good for you." ”

This black dragon is not stupid, he actually knows how to negotiate, Ning Yuan smiled and passed on the divine thought: "Although Zhu Guo is precious, but it was eaten by you like this, isn't it a tyrannical thing, when I practice the pill, naturally you are indispensable, and I, Ning Yuan, am not the one who picks the door." ”

"Okay, it's a deal!." The black dragon hesitated for a moment, and then nodded, it has survived since ancient times, and naturally knows the efficacy of the elixir, so many Zhu Guo, if it is refined into an elixir, the effect will definitely be increased tenfold and hundredfold, and it is naturally much stronger than he swallows it like this, and Ning Yuan is guarding here, even if it does not agree, it must be able to eat it.

Watching the huge body of the black dragon leave, Ning Yuan smiled bitterly and shook his head, this black dragon fruit is really as he and Bai Zhanyuan guessed, come to steal Zhu Guo, if he didn't stay in the valley today, so many Zhu Guo would not let this black dragon be swept away, this guy wouldn't know what it means to destroy the heavens.

Spirit beasts don't know how to alchemy, and any heavenly and earthly treasures are basically eaten and swallowed alive, and some spirit beasts will guard some immature rare and exotic fruits when they encounter them, waiting for the rare and exotic fruits to ripen, such as the previous exotic beasts, but some spirit beasts will not consider it at all, such as the black dragon.

"Brother Ning!"

Not long after the black dragon left, another black spot appeared in the sky, Nine Eagles carried Chen Yuxin and Ouyang Sasha to the valley, jumped off the eagle's back, Ouyang Sasha came directly to Ning Yuan's side, and grabbed Ning Yuan's arm: "I heard Senior Bai say that you are condensing your heart fire, have you succeeded?" ”

"It worked." Ning Yuan nodded with a smile and said, "You two don't cultivate well, why did you come here?" ”

"I miss you." Ouyang Sasha smiled sweetly, looked at Ning Yuan with charming eyes and said, "What, no?" ”

"Okay, naturally." Ning Yuan smiled and invited the two girls into the thatched house and said, "But my environment here is simple, don't lift it." ”

"If you want to dislike it, you have already disliked it, and you can't wait now, Sister Yuxin, don't you say?" Ouyang Shasha asked Chen Yuxin.

"Not bad." Chen Yuxin also nodded with a smile, leaving Ning Yuan speechless for a while.

Chen Yuxin and Ouyang Sasha came, so they simply stayed in the valley and didn't leave, Ning Yuan was accompanied by Chen Yuxin and Ouyang Shasha, and he didn't feel lonely and bored in the valley.

A month passed in the blink of an eye, Ning Yuan sometimes cultivated alone, sometimes accompanied Chen Yuxin and Ouyang Shasha to make moves, and sometimes watched Ouyang Shasha guide Chen Yuxin, and his life was happy.

Seeing that there were more than ten days left before Zhu Guo matured, on this day, Ning Yuan and the three of them were sitting on the grass in front of the thatched house drinking tea, when suddenly a gap suddenly tore open in the originally calm sky.

There was a palpitating aura in this gap, and the crack cracked, like an eye suddenly growing in the sky.

After the crack opened, several black shadows descended from the gap, and then the gap slowly closed and disappeared in an instant, while several black shadows descended on the mountain peak not far from the valley.

From a distance, several black shadows were wrapped in black suits, revealing only a pair of eyes, the size of which was the same as that of a normal human, and each of them held a scarlet long sword in their hands.

"Visitors from outside the territory!"

Ning Yuan's eyes narrowed, and he exhaled softly, most of all, he had already heard Tian Yifeng say that there were extraterritorial visitors in the secret realm of the last Great Chaos Star Era, and these extraterritorial visitors were basically the same as normal humans, the only difference was that the whole body was scarlet, and a pair of eyes were even more red and terrifying.

The strength of these visitors from outside the territory is different, the low cultivation is comparable to the realm of refining the gods and returning to the void, and the high cultivation is even comparable to the Jindan master, these visitors agree to go through the ancient killing path, descending to the secret realm, focusing on killing, very terrifying.

Although he was mentally prepared, Ning Yuan didn't expect these visitors from outside the domain to come so quickly, it was less than two months before the Great Chaos Star opened to full power, and the Medicine King Secret Realm was even a small secret realm, and there were even visitors from outside the domain coming.

"What a murderous aura!" Ouyang Shasha, who was standing beside Ning Yuan, said: "Brother Ning, these people have a very heavy murderous aura, and they are very powerful, all of them have cultivation comparable to the middle stage of refining gods and returning to the void, and even the cultivation of two of them is comparable to the peak of refining gods and returning to the void.

"These people are powerful, you are not opponents, Sha'er is not responsible for protecting Sister Yuxin, I will try the methods of these outsiders." Ning Yuan nodded, and explained to Ouyang Shasha and Chen Yuxin in a deep voice: "If you can't do anything, you will ride the Nine Eagles and leave." ”

"Ning Yuan, then you." Chen Yuxin said worriedly.

"Don't worry, these visitors can't hurt me." Ning Yuan smiled slightly, giving the two women a reassuring look, and now with a few attacks from the master's ring, Ning Yuan's combat power has also increased significantly.

As he spoke, Ning Yuan took a few steps, and in the blink of an eye, he arrived at the top of the mountain where several foreign visitors had landed, and there were a total of eight of these foreign visitors, two of whom were comparable to the peak of refining the gods and returning to the void, and the other five were comparable to the middle stage of the refining of the gods.

"Fortunately, there are no visitors from outside the realm who have returned to the Void and Harmony Dao cultivation." Ning Yuan was glad in his heart, and at the same time, without saying a word, the sword in his hand directly stabbed into the chest of a foreigner. (To be continued......)