It's hot! A wave of hot air came over his face, and his mouth was dry for a while.

"If you can't stand it, open a water shield!" Hao Shibo reminded.

Hearing this, he summoned a light blue shield, and the person felt much better. Looking at Hao Shibo again, he seems to have gotten used to the high temperature here, and he didn't open his shield.

Inside the door, there is a huge "pillar" in front of you, which connects the ground under your feet and the stone wall overhead. Surrounding this large pillar is a wide circular aisle, and on this "pillar" there are also some tall stone doors.

Liu Yiwen was marveling at the huge amount of this object, and he heard Master Hao introduce: "This is the 'earth furnace' of this smelting material, which itself is connected to an underground fire vein, so the temperature is extremely high. There are twelve smelters on this large pillar, each of which can accommodate up to five people for refining. ”

After speaking, he took Liu Yiwen around the back of the "pillar" and walked towards a certain stone gate. Hao Shibo pushed open the stone door and entered, only to see that there were four people in the smelter who were busy with their own work.

Hearing the sound of the door opening, the four of them looked towards the door. One of the teenagers hurriedly stood up and saluted to Uncle Hao, "I've seen Uncle Hao, is this a new junior brother?"

"Yes, Min Zhu will take him to familiarize himself with the refining process in the past half a month!" Master Hao commanded.

Min Zhu happily took the order and said, "Yes, uncle!"

Hao Shibo turned to Liu Yiwen and said, "Then you can study hard here, if you can meet the requirements in half a month, you can receive the smelting task here." ”

"Uncle Xie!"

Hao Shibo casually walked around and left the place.

Min Zhu said to Liu Yiwen, who was standing aside: "You first see how I use this fire, and if there is anything you don't understand, just bring it up." ”

Liu Yiwen hurriedly agreed and observed the new environment.

There is a gray sphere about three feet in diameter made of unknown materials in the smelter. The ball has a lid at the top and a tube the size of a baby's arm at the bottom. It is inscribed with some esoteric runes, and there are occasional flashes of inspiration. Looking at the bottom of the sphere, there is a round hole in the ground that is about the size of a foot, and from time to time there is a fiery red magma spewing out from it, exuding a scorching heat. The gray pipe is about a foot long, and the end is a beveled plane, and an iron trough the size of a washbasin is placed underneath.

After looking at it, Min Zhu pointed to the round ball and said, "This is the metallurgical furnace we use for refining." ”

Liu Yiwen nodded, and didn't speak and watched Senior Brother Min Shi Wei intently.

Min Zhu recited a trick in his mouth and hit a stone statue of the beast head beside him, and the beast head suddenly opened its eyes and mouth as if it had come to life, and spit out a milky white liquid column the thickness of a thumb. As soon as the magma at the bottom of the sphere touched the liquid column, it burst into flames like a tonic, and the flames turned blue and white. The runes on the metallurgical furnace glowed red under the stimulus of the flames. A heat wave swept out, and Liu Yiwen could feel the scorching heat through the water shield.

This continued for a bag of cigarettes, and some pale silver liquid began to drip slowly from the end of the ash tube above the iron trough. Senior Brother Min wiped the sweat from his forehead at this time, obviously the spell just now made him a little difficult.

I don't know what kind of raw ore was melted from that silvery liquid, and it needs such a high temperature. Liu Yiwen realized after looking at it: it seems that ordinary earth fire can't melt these ores, and it must use the power of the runes of this beast head mechanism to trigger the smelting furnace to succeed.

As he watched, he memorized in his heart. If you don't know something, you can ask this Senior Brother Min Zhu for advice.

......

Half a month later, inside the smelter.

Liu Yiwen stood in front of the big gray ball at this time, stretched out his hand and pinched his finger, and the "ball cover" opened in response. He then skillfully used the repellent technique to send a small pile of ore around him into the ash ball, closing the lid.

He took another deep breath and adjusted it slightly, and then a low incantation sounded from his mouth. He turned his spell and struck at the beast's head, and a slender column of liquid shot out on top of the magma, and a pale blue flame roared out, making the place warm and hot.

He continued to pump mana at the beast's head. After half the incense burn time, the originally gray metallurgical furnace became a little white at the high temperature, and the end of the ash tube finally had a pale yellow liquid flowing out. Seeing this, his heart was slightly relieved.

After a while, Uncle Hao behind him bowed his head and said, "Well, it's okay! Come with me to the warehouse to get the task." ”

Liu Yiwen didn't care about the sweat on his forehead, and hurriedly put the formula away, and said thank you in his mouth.

......

In the following days, Liu Yiwen devoted himself to refining, except for occasionally going back to Yuquan Mountain to rest for a night or two, the rest of the time was basically here.

Refining consumes a lot of mana, and at the end of the day, there is not much mana left. And it takes a long time to focus, which is really boring. At first, he was rather jerky, often delaying for a few days to barely complete the tasks of the month.

After a year and a half of training, he has mastered the basic process of refining, and this month's task has been successfully completed. Now that his refining technique has a certain degree of popularity, there are still a few days left to spare after completing the task, which makes the fellow disciples in the smelter amazed.

On this day, Liu Yiwen and Min Zhu were talking about something in front of the furnace. His complexion looked a little darker, and there was a hint of exhaustion between his brows.

Refining raw ore is the basic technique, and refining magic tools requires higher skills, and the corresponding rewards are even more lucrative. So now he is slowly starting to pay attention to the matter of magic weapon refining. He felt that he had some talent in this path, so he looked forward to refining magic weapons even more.

Liu Yiwen frowned and said, "Senior Brother Min, I don't know what is the difference between this magic weapon refining and raw ore?"

Min Zhu pondered for a moment and said, "The refining of this damaged magic weapon is a little different from the refining of ordinary spirit ore, and refining the damaged magic weapon requires a higher skill. And the furnace used is not this one. Min Zhu said this, pointing to the stove in front of him.

"By the way, if you want to learn magic weapon refining, it's best to ask Master Hao for advice. The skills of the other people in this Sword Casting Pavilion were mediocre, and I am afraid that it would be difficult to refine valuable materials. He reminded.

Liu Yiwen was stunned and said, "Oh, isn't the material refined from this magic weapon different?"

Min Zhu smiled happily and explained: "Of course it's different, everyone refines something different. Because the materials in the ritual vessel are complex, ranging from more than 10 kinds to dozens of kinds, the control and time requirements for the furnace temperature are very high. Some materials are easy to scrap at high temperatures, while others can't be used for too long. In short, this requires precise control of the fire, so what materials can be extracted depends on each person's attainment. ”

Liu Yiwen nodded and said, "Thank you, senior brother! ”