When Zhang Di and Jiang Yan heard this, they immediately became interested, both of them were the first time to observe the refining master refining weapon at close range, especially this was a trace of Geng essence in the smelting of the cold iron of heaven and earth, which made the two of them even more excited.

What kind of thing is the Gengjing? That is the treasure of heaven and earth that can only be generated after the iron essence continues to be refined! The iron essence in Zhang Di's hand is already very magical, and you can imagine how mysterious it will be if this Geng essence is refined!

So both of them stared intently at the three-color earth heart fire in the hearth, wanting to see what was going on with this refining weapon, especially Zhang Di's eyes narrowed, urging the Qi Hope Technique to the extreme, and suddenly saw that there was a trace of heaven and earth aura rolling around the piece of heaven and earth cold iron, which was moving in a certain pattern.

"Hmm...... Could it be that this refining weapon has something to do with the changes in the aura of heaven and earth?" He couldn't help but move in his heart, his eyes flickered with black light, and he looked at the source along the trace of the rolling heaven and earth aura, and saw that it was from the bottom of the hearth, where there was actually engraved a spirit gathering array, accompanied by the bellows agitation, while spewing out streams of three-color earth core fire, it also brought out a trace of rolling heaven and earth aura.

"Hmm, this Spirit Gathering Array ......" Zhang Di frowned, as if he had noticed something wrong with this Spirit Gathering Array, but he didn't point it out, but squinted his eyes and looked at it intently.

"Look, now is the critical moment, I want to increase the fire and raise the temperature of the flame core to 54,000 degrees!" Master Yuan shouted, and suddenly pushed the bellows on the soles of his feet violently.

Listening to the whirring and fierce wind, the spirit gathering array at the bottom of the furnace rose and shrank, absorbing a large amount of spiritual energy, causing the three-color earth core fire to spew out several times higher at once, and the color of the flame heart even turned blue-purple.

The sudden rise in temperature is like a solar wind. made Zhang Di's breath stagnate, and they quickly increased the mana shield. This can barely resist, and I am very surprised in my heart.

Ding Ding Ding Dong

Master Yuan's eyes were solemn. The mouth full of fangs clenched, as if all the strength of the whole body was exerted, the left hand quickly turned the pliers, and the right hand quickly dropped the hammer, striking at different positions of the cold iron of heaven and earth.

Strange to say, the cold iron of heaven and earth, which had not changed at all like a stubborn stone, gradually softened under such a high temperature, and a trace of impurities was hammered out, turning into ash smoke and dissipating in the hearth. And inside it, there are dots of light gradually flashing, as if it is the Geng essence contained in it that has been gradually condensed.

This scene made Jiang Yan's mouth open slightly in surprise, her eyes widened, with her extensive knowledge of the daughter of the Hongli Business Alliance, she naturally knew how difficult it was to smelt the cold iron of heaven and earth, it was a thing from the upper realm, it was said to be born with the ancient immortal and demon war, if there was no high enough temperature and refining skills, let alone smelting. It's impossible to knock even a little crumb off from above!

And right now, in the hands of Master Yuan, miracles are happening little by little, seeing that the cold iron of heaven and earth has begun to turn red and soft, and the impurities are scattering more and more. The dotted lights inside began to become more and more numerous, and Jiang Yan's heart was pounding with nervousness.

On the other hand, Zhang Di, although there was also surprise in his eyes. But more of it was a trace of uneasiness that was getting stronger and stronger, and he quietly moved closer to Jiang Yan's side. The mana is ready to be released, and it seems that he is ready to deal with the possibility of accidents.

Master Yuan's expression also became more and more solemn. Sweating profusely fell like raindrops, and every hammer was struck with great care, and it seemed that it had reached the critical point.

Suddenly, the spiritual power in the furnace was violently disturbed, causing the three-color earth core fire to explode to the ground, and the flames of the furnace turned into clusters and sprayed in all directions, and even many of them rushed to the outside of the furnace.

"Be careful!" Master Yuan shouted, and the mana around him skyrocketed, turning into a thick shield in front of him, but the violent three-color earth heart fire was extremely terrifying, although most of it was resisted, there were still a lot of burns through his mana shield, and on his thick body covered with black hair, a cloud of ashes was burned.

Before he reminded him, Zhang Di had already jumped forward, blocking Jiang Yan, who was stunned for a while, and at the same time his right palm was blocked, opening the palm gathering array to the maximum, and blowing out a gust of wind, blocking out a three-color earth heart fire that occasionally slipped through the net.

When the dust in the house settled, Master Yuan was covered in gray and white, accompanied by a smell of burnt flesh and skin, although there were some flesh injuries, it seemed that there was no major problem.

"Alas! Failed again!" he looked down at the hearth, only to see that the flames had been extinguished, and the cold iron of heaven and earth had condensed into a large mass of black again, the pincers had been blown up, and the hammer had been blown off, and he looked at the mess silently, and then looked back at Zhang Di and the others: "Are you two okay?"

Zhang Di and the others shook their heads, not even a trace of sparks were touched on their bodies, and they were unharmed.

Master Yuan saw Zhang Di blocking in front of Jiang Yan, and there was a hint of surprise in his eyes: "Boy, your reaction is faster than mine, could it be that you have already seen that there is a problem with this smelting?"

"Don't dare, I only know a little about smelting, so it's just a subconscious reaction. Zhang Di clenched his fists and said humbly.

Master Yuan tilted his head, looked up and down at Zhang Di, and suddenly smiled: "Good boy, there are two hits, I remember that just now you blew away the three-color fire in the center of the earth with one palm, and that one-handed martial arts skill is also quite good!"

Zhang Di couldn't say anything, so as not to expose the secret of the Palm Spirit Gathering Array, so he just smiled.

Jiang Yan reacted at this time, seeing that Zhang Di was still in front of her, her cheeks were hot for no reason, and there was a trace of indescribable sweetness in her heart, so she hurriedly walked to Zhang Di's side, the corners of her mouth curled, and whispered to him: "Thank you just now." ”

Then he swept his sideburns and hair, and smiled at Master Yuan: "Master, Zhang Di is just modest, in fact, he is a rising star in Linggu and formations, and his niece and nephew just panicked, and didn't see anything, I believe Zhang Di must have seen some clues." ”

"Oh, tell me, what do you see?" Master Yuan looked at Zhang Di.

Zhang Di touched his nose and smiled humbly: "Jiang Yan praised it, in fact, she is shallow in her knowledge, where can you see how many clues." ”

"Hmph, you kid is so unhappy, you can see it when you see it, you can't see it if you don't see it, what does your mother-in-law and mother look like? Let me tell you! If you don't say that you are ugly today, you won't be able to solve this master's problem of smelting the cold iron of heaven and earth, and your refining request can only be delayed!" Master Yuan suddenly rolled his strange eyes to the sky, snorted coldly, and actually started a temper.

Zhang Di smiled awkwardly, he didn't want to say his opinion, in fact, from the very beginning of the spirit gathering array in the hearth, he could see that the formation pattern of the spirit gathering array was a little conflicting, when the flame temperature was not high, it was barely possible, once the temperature climbed to the maximum, due to the conflict of the formation pattern, it would lead to a violent disturbance of spiritual power, and it was natural for the furnace to occur.

However, the inscription of this spirit gathering array is obviously done by a master, at least he is also a formation master above level four, look at the inscription of the pattern, the cultivation is at least above the foundation, and the cultivation on his own face is only the fifth level of the refining body, and the understanding of the formation should not exceed the cultivation too much.

However, he has obtained a lot of knowledge about the Spirit Gathering Array from the Mysterious Heavenly Book, and every time he cultivates to a small realm, he will obtain a lot of formation patterns, and with his current understanding of the Spirit Gathering Array, it can be said that if he says the second in the world, no one dares to say the first.

If you point out your fingers and take out those unsightly formation patterns and fall in the eyes of a master like Master Yuan, I am afraid that it will cause a lot of trouble, so I am embarrassed.

"Hmph! I see that you kid either knows it and doesn't say it, or you don't understand it at all, in short, it bores Master Ben! Hurry up and get out of here, Lao Tzu will be annoyed by you in his life, unhappy and unhappy!" Seeing that Zhang Di had been hesitating, Master Yuan's patience reached the end, and he suddenly brandished his hammer and roared.

Seeing that Master Yuan was angry, Jiang Yan was also anxious, and thought: "It's bad, this Master Yuan has an extraordinary background, and he is related to the barbarian refining sects, the original intention is to let Zhang Di behave in front of him and gain his appreciation, who knows that Zhang Di has other difficulties, I shouldn't brag for him, this is bad!"

She knew Master Yuan's temper very well, because he was a human form transformed by a barbarian demon ape, his temperament was both good and evil, and there were three points of tyranny among the seven points of rationality, if he really annoyed her, let alone her Jiang Yan, even if she moved out of her father, she couldn't help but start to be a little anxious.

At this moment, Zhang Di suddenly arched his hand and said: "Master don't be angry, it's not that Zhang Di doesn't want to tell him, but if you want to solve this problem of the furnace, the key lies in the spirit gathering array at the bottom of this furnace." ”

"Oh, Spirit Gathering Array, that's the latest research of a friend of mine, she is a fourth-level formation master, she has been patting her chest to guarantee that there will be no problem, if it is really a problem with the Spirit Gathering Array, she can compensate Lao Tzu for the loss!" Master Yuan opened his eyes and said in a loud voice: "You wait, I'll call her over!" As he spoke, a messenger flew out with a swish, and this person was very angry, and he even said that he would call someone.

As soon as she heard that the person was coming, Jiang Yan's face changed, and she just opened her mouth to shout: "Master ......", seeing that the messenger had been issued, she could only smile bitterly. (To be continued.) )