Ye Nan put away the materials that had been refined once, and immediately started refining the next piece of iron nitrate. Sure enough, a qiēshun lì. Ye Nan has refined all the iron nitrate that needs to be refined, and has mastered the method of distraction refining, which can refine five pieces of nitrate at the same time.

After the second refining, Ye Nan understood that the more times the ore and material were refined, the higher the purity of the ore itself, the better the artifact produced, and of course, the greater its grade and power.

"Okay! Start the second refining!" Ye Nan yelled excitedly.

He was full of confidence in his refining skills, in terms of mana, he was twice as pure as a monk in the foundation building period of the same level, and in terms of divine sense, he thought that no one could match it, and he felt that he still had a certain talent for refining.

With a shake of his hand, he threw five pieces of iron nitrate into the ground fire and began the second refining. Ye Nan carefully controlled the iron nitrate, concentrating his consciousness to separate some green impurities in the iron nitrate. The temperature of the ground fire gradually increased, but the ferric nitrate did not seem to be melting.

"Huh~?Why doesn't this iron nitrate melt?ah...... By the way, the density of the material after one refining is also relatively increased. Ye Nan suddenly slapped his forehead and figured it out.

After the material is refined once, a part of the impurities is separated, and the density increases accordingly. When the second refining is carried out, the original flame temperature can no longer dissolve the ferric nitrate with increased density. Therefore, the temperature of the earth fire must be increased.

After thinking about it, Ye Nan immediately flicked his middle finger, and a spiritual light hit the control array, and the ground fire instantly skyrocketed, and the temperature in the basement immediately increased. Soon, ferric nitrate began to show signs of melting.

Ye Nan nodded with satisfaction, and continued to use the distraction method to refine five pieces of iron nitrate at the same time, and his divine sense locked on the green impurity and forcibly pushed it outward. Seeing that these green impurities were about to be separated from the inside of the ferric, suddenly an invisible suction pulled these impurities, making them unable to separate smoothly.

Ye Nan was in a hurry, increasing the temperature of the earth's fire, and planned to fight with all his might.

"Puff puff ......"

"Ah......" However, due to the fierce temperature of the earth, all five pieces of iron nitrate were burned. Ye Nan's flesh hurt for a while, the muscles on his face jumped unconsciously one after another, and he even felt that his heart was about to jump out, and all the hard work just now was in vain.

It seems that the refinement of this foundation cannot be underestimated, and once it fails, it really feels like a big thing will die before it is done. After that, Ye Nan was still obediently refining piece by piece, and he would rather consume more time than dare to use it more than he could, he couldn't withstand such a loss, even if it was this kind of bargain, but once it consumed too much, it was a waste.

In addition to the large quantity, the main factor is that the reaction force in the refining process hinders the separation of impurities. Therefore, Ye Nan could only increase the strength of his divine consciousness to restrain the reaction force. Sure enough, the impurities were separated.

At this time, the nitrate ore, after two refining, has turned silver, and it seems that it should be the result of the separation of impurities.

Next, Ye Nan plans to try the next three refining, and if it succeeds, then this ordinary iron ore will also become a precious and superb material.

However......

"Poof......

"Damn!" Ye Nan slapped his forehead, his heart trembled in pain, this is already the seventh piece.

The difficulty of the third refining is really not ordinary, in addition to the strength of the earth fire, the consumption of divine intelligence and mana has also increased exponentially, and the control power is extremely demanding. With Ye Nan's current rookie status, I'm afraid it's not suitable to try at all.

In the end, Ye Nan chose to give up.

"Hundred refining crystals!" This time, Ye Nan tried a slightly more difficult material, crystals.

The refining of crystals requires extremely high fire control, the flame temperature is too low, the crystal will not melt, and the flame temperature is too high, then the crystal will be broken directly. This is a test of a caster's mastery of fire control.

The profession of Attachment Formation Master that Ye Nan has chosen now can be said to include all miscellaneous studies, and at least it must reach the level of proficiency. Talisman makers, on the other hand, just need to know a little bit about the basics. From this, it is enough to see that the emerging profession of Attachment Array Master is so difficult and rare.

"Click......" There was a crisp break.

Ye Nan sighed, the refining of this crystal was really extraordinary. This time, Ye Nan has to think carefully about the process of failure, crystal materials are not as good as iron nitrate, and each kind is three times the price of iron nitrate, so Ye Nan can't afford such consumption.

After thinking about it, Ye Nan began to increase his efforts on the ground fire control, and his divine consciousness was fully opened, and he put two-thirds of his divine consciousness on the ground fire control zhì force.

Sure enough, this refining was extremely smooth, and the impurities in the Hundred Refining Crystal were quickly refined.

Looking at the thumb-sized crystal, Ye Nan smiled "hehe" and began a month-long refining plan.

Time flies, and a month passes. Ye Nan was refining various materials day and night in the basement, and with the characteristics of automatic exercise in his body, Ye Nan could maintain the replenishment and operation of spiritual energy for a long time without resting. And when the divine consciousness is consumed, he uses the space to move the technique to restore and enhance the divine consciousness.

In this way, Ye Nan has made remarkable achievements in refining weapons.

"Whew~! This time it's starting to get serious. After refining the materials, Ye Nan planned to start working on the arrangement of the formation.

First of all, take out the refined array materials, divide each into quotas, and then string flowers with both hands on the chest, and play out one by one, and start to arrange the formation with the same materials floating in the air.

Prior to this, Ye Nan had already rehearsed the layout of the formation with the explosion flame in his mind over and over again. Every rune, every line, the materials to be used, all accurately memorized in my mind.

Ye Nan used his divine sense to lock on to a piece of green jadeite gold, connected the dots with his fingers, and made a certain amount of jadeite gold refining into a round lace with the help of earth fire, and then added a small amount of iron nitrate, and then added three other precious materials.

The arrangement process was extremely slow, and Ye Nan was afraid that if he failed, the materials he had refined in a month would be scrapped, which would be more uncomfortable than killing him.

"Ding~!" There was a crisp sound, and an earthy yellow rune lit up. This proves that a small part of the large array is well arranged.

Ye Nan was overjoyed, but he didn't stop, and his hands were quickly arranged.

"Ding Ding Ding Ding~!" Soon, one rune after another lit up, and when the last rune lit up, the entire large array was finally successfully arranged. Ye Nan rubbed his hands excitedly, Xinqing was very excited, and then he had to look at the results of his cultivation of spatial shifting.

Ye Nan took out a medium-grade magic weapon, which was a small pink flag. He took a deep breath, and then his consciousness suddenly strengthened, and there were words in his mouth, and his hands flashed, and black runes popped out into the large array. The black runes formed a six-pointed star array, bursting out with powerful aura.

At this time, Ye Nan's divine sense had already reached its maximum, and with the help of the six-pointed star array, he forcibly squeezed the attached array that had just been arranged, and the entire large array erupted with a piercing "sizzle" sound, and a trace of spatial fluctuations could be felt in the secret room.

"Up!" Ye Nan's hands were in the shape of a tray, and the black aura that erupted from the six-pointed star array was like a black hollow, rotating endlessly, and the flame burst array was shrinking little by little, at this time, due to the reaction force of the pressure, Ye Nan felt a trace of tingling and dizziness in his head.

Ye Nan gritted his teeth and insisted, he must succeed at the first time, otherwise he would suffer heavy losses.

The magic circle gradually shrank, and finally shrunk to the size of a palm, Ye Nan slapped the storage bag, the Heart-Killing Sword was in his hand, and the whole body aura was infused into it, and the Heart-Killing Sword made a "buzzing" sound. At this time, it is not in a combat state, so the Killing Heart Sword is only one foot in size.

A little pink banner in his left hand, the small banner floats under the attached array of flames, and the right hand quickly engraves the seal of the attached array of flames on the small flag. The Heart Killing Sword emitted a soft five-colored aura, and with each rune engraved on the seal, the aura attached to the Burst Flame Array dimmed a little.

Ye Nan's heart was suddenly as calm as water at this time, and there was no distraction in his mind, and he was completely integrated into the seal carving formation. His fluid movements didn't look like a beginner at all, and the entire space of the chamber seemed to be static, and all of it was in the air. Only the aura fluctuations of Ye Nan's right hand and the seal carving movement could see that time had not stopped.

When the last rune seal was engraved on the small flag, the entire space suddenly erupted with a dazzling light, and then instantly returned to calm.

"Huh, is it...... Succeeded?!" When the entire secret room returned to normal, Ye Nan looked at the magic weapon in his hand in disbelief.

"Wowhaha...... I'm a genius!wahaha...... Succeeded!" Ye Nan suddenly jumped up and ran back and forth in the secret room like crazy. Fortunately, this secret room is too small, otherwise Ye Nan would have flown into the sky and circled a few times.

"Okay!

However, the next attached array disappointed Ye Nan.

"Oh no...... Space is unstable!"

I saw that the six-pointed star needle arranged by the space shift suddenly erupted with chaotic aura, and the entire space began to vibrate, which was obviously a sign of collapse.

"Ahh With a golden light, Ye Nan's entire body was covered with a thin layer of golden bubbles.

This is the table of the Hades Decisive Building Chapter, and the golden bubbles are attached to Ye Nan's skin, like a protective film. However, the defense of this object is definitely much stronger than the monk's body protection aura.

"Boom ......"

The six-pointed star needle finally exploded, and the qi wave instantly spread with a dazzling light, and its power was no less than that of casting a high-level spell with all its might.

When the shockwave touched the stone wall of the secret room, a large number of golden runes suddenly appeared on the stone wall, instantly absorbing all the power of the explosion. The entire secret room was carefully arranged by Ma Yushan, and the stone wall was arranged with a top-level Soul Devouring Array, as long as it was used to absorb the sudden explosion of spiritual energy in the real room, the test loss would be reduced.

"Whew~! It's dangerous!" Ye Nan wiped his forehead and looked at the entire secret room. It's okay, except for some stone tables and chairs that are damaged, the other items are still in good condition.

Ye Nan recalled the process of failure just now, and found that he had just had a slight fluctuation in his feelings, which instantly led to the instability of the entire large array.

"I see!I won't have a similar incident next time!haha......"