"Xiao Qiang, let's get closer and take a look!" the three elders of the Gu family couldn't wait and hurriedly said. 【Fengyun Reading Network】

"Xuandian, let's go over, the idea is safe. Xiao Qiang sent out a thought towards Xuandian.

Xuandian nodded, and the flames burned all over his body, forming a red barrier that protected everyone, and then flapped his wings and flew forward.

Wangshan ran a dead horse, although in everyone's opinion, the burning Ding Furnace Star seemed not far away, but that was just an illusion.

It took Xuandian more than four hours to fly before they arrived in front of a flame heavenly river on the outermost part of the Ding Furnace Star.

Spanning thousands of miles, the red heavenly river hangs majestically in the sky, the wide river surface is hundreds of miles wide, and in the river, the pure flame seems to have condensed into transparent crystals, showing a glazed texture.

The high temperature emanating from the Tianhe River evacuated the surrounding air and devoured the existence of other energies, turning the entire world into a closed and forbidden space.

Gu Zhantian and the others looked solemn, their eyes were a little nervous, and everyone took out a transparent crystal bottle from the storage space and held it in their arms.

The material of the crystal bottle is not ordinary, but the non-attribute crystals that Xiao Qiang brought back from the Mirror Mountain of the Great Desolation Fantasy Realm back then, they can not only resist extremely high temperatures, but also because they do not have attributes, so they will not cause any interference.

In the transparent crystal bottle, there was a gray stone the size of a baby's fist, Xiao Qiang had seen this kind of stone before, it was called the Flying Flame Stone.

The Flying Flame Stone is a necessary item for almost every refiner and alchemist, and it has only one function, which is to determine the temperature of the flame through the color change of the Flying Stone when it melts.

Whether it is refining weapons or alchemy, or casting weapons and armor, the heat of smelting materials is the most critical part.

In ancient times, people judged the temperature by observing the color of the flame, so there is a saying that "the fire is perfect".

But after all, visual inspection is not accurate enough, refining ordinary weapons or it doesn't matter, but if you want to refine high-level Xuan soldiers, then you can't tolerate the slightest deviation.

Xuandian finally flew into the sky above the red heavenly river, and suddenly turned into a fire shadow, compared to the majestic, it was a sparrow.

The moment it opened the enchantment, several old people turned on the energy defense at the same time and threw the fling stone in the crystal bottle.

Two were thrown down in each area, and then after observation and comparison, with the refining skills of the ancient family, they were able to quickly grasp the deviation between temperatures.

"Brother Xiao Qiang, I have already calculated it last time, I can't make a mistake!" Yu Ling suddenly sent a thought to Xiao Qiang, as if he was very dissatisfied because he was questioned.

Xiao Qiang couldn't help but laugh and said: "Yuling, of course you won't be wrong, they are not questioning you, but because of caution, and for these seniors, they also have to enjoy the process." ”

Yu Ling suddenly realized, also as a technical nerd, think about it from another perspective, it can understand the practices of these predecessors.

The time of the entire test took more than an hour, spanning two flame heavenly rivers, and finally obtained various data.

As expected, the results of the Gu family's predecessors and Yuling's original test were completely consistent.

Everything is ready to start smelting!

Gu Zhantian and the three seniors of the Gu family, as if they were facing a great enemy, took out the various materials in the storage space, and were ready to put them into the Flame Heavenly River at any time.

The whole smelting is divided into a total of thirty-eight steps, each step will smelt several materials, and these smelted materials will be fused again until one hundred and twenty-eight materials are completely fused together.

Each step of smelting is a process of removing the turnips and retaining the essence, and the most important thing is to control the heat and timing.

However, the presence of the slightest impurity, or the lack of heat, or the wrong order of the steps in the middle, may lead to the failure of the final melting.

Therefore, in the whole smelting process, Xiao Qiang and Ding Lanyi couldn't interfere at all, even if Gu Zhantian and the three old men were under great pressure, they had to insist on completing it.

For Xiao Qiang, he just needs a peerless divine weapon, and for them, who have been obsessed with refining weapons all their lives, they are creating a great work of art and creating a living life.

The pursuit of perfection is their instinct, even if Xiao Qiang is the head and the last master of this sword, they can only stand aside at this moment.

"Floating Cloud Swallowtail, Three Corpse Insects, Heavenly Star Chalcedony, Deep Sea Flame Essence, Cast!" The ancient patriarch's mouth was full of words, and suddenly his eyes burst out with a fine light, and he shouted.

Gu Zhantian's big hand suddenly flashed with a soft white light, and he actually used energy to conjure up a huge palm, and this transparent big hand grabbed a material, flew out of his arm with a snort, and went straight into the surface of the Flame Heavenly River.

The other three ancient family members also conjured up the "Innocent Palm", grabbed the remaining three materials, and sent the materials into the Tianhe River in order.

This is only the lowest level of smelting, so the temperature required is not high, and with their cultivation, they can directly control it.

The medicine idiot senior explained to Xiao Qiang and Ding Lanyi: "The innocent palm is the real secret of the ancient family, and it is also the original creation of the ancient Feiyang master back then. ”

Xiao Qiang suddenly realized that all along, because of his friendship with Master Gu Jingyun back then, he thought that he knew the Gu family quite well, but now it seems that his understanding is only on the surface, and the thousand-year-old essence of the Gu family's refining weapons can not be understood clearly by a layman.

In the transparent flames, the four materials gradually began to melt and deform, and a trace of blue-gray soot escaped from the surface of the material, but it was quickly consumed by the flames.

The blue-gray soot is just the most common impurities, and as the temperature continues to penetrate, the four materials begin to emit colorful smoke, which is like colored silk threads in the transparent flame, which is extremely beautiful.

"Fusion!"

The two large hands in the transparent flames quickly merged the two deformed materials together.

"Fusion!"

Another material blends in.

"Fusion!"

The fourth material is blended in.

Gu Zhantian, who had mastered the last step, suddenly became larger than the Innocent Palm he conjured, converging all the four molten materials in the huge palm.

Everyone looked nervous, staring intently at the big hand in the transparent flames, and the four materials that had turned into solutions.

This is the first fusion, although it is the least difficult, but it is significant, and if it succeeds this time, it will give them great confidence.

...