Regarding the alchemy furnace, the legendary old monster who collapsed most of the mountain gate in Dandingmen has a lot of research.

He divided the Dan furnace into more than 90 grades, different pills, different medicinal properties, and different use of the Dan furnace, so that there is a basis for refining high-grade and even perfect quality pills.

The predecessor of Yanghexing deeply agreed with this argument.

Influenced by the predecessor, the Dan furnace that Xu Feng used for alchemy this time was specially equipped.

I believe that the forger arranged by the chief of staff can accurately create the Dan furnace he needs, after all, this is the era of technological explosion, and the technology in many aspects is stronger than the immortal cultivators of Yanghe Star.

Speaking of processing materials, Earth and Mars technology has been able to manufacture nanomaterials on a large scale.

In terms of harnessing energy, ten years ago, a mad scientist managed to take a half-day trip to the sun in a spaceship.

Although the result was that the spacecraft was half-abandoned and the man was severely dehydrated, the experiment showed the technological progress of mankind to further exploit the sun's energy.

More than 700 years ago, the Soviet astronomer Nikolai Kardashev proposed the concept of civilizational hierarchy.

A Tier 1 civilization can dominate the total energy of the planet and the surrounding satellites.

Level 2 civilizations are capable of harvesting energy from entire star systems.

Level 3 civilizations can use the energy of the system in which they are located.

Obviously, the earth's civilization that can further exploit the sun's energy is close to a second-level civilization.

When the earth's civilization can truly make full use of the sun's energy, human beings will be as normal as going back and forth to Earth and Mars.

The three alchemy furnaces placed in front of him are made using stellar-level furnaces, and the alloy used to make the Dan furnace is compact and pure, almost without a trace of impurities, and the ratio of various elements is close to perfect.

This is still a finished product that took a day and a night to make.

Changing to Yanghe Star, even a refiner in the Jindan period may not be able to create it.

As soon as he takes it out, he will definitely be treated as if a certain Yuan Infant Stage Great Cultivator has nothing to do, refining a few low-level high-quality Dan furnaces to play.

"Good Dan Furnace!"

Xu Feng exclaimed, patted the Dan furnace on the left, and patted the Dan furnace on the right.

With such a Dan furnace, even if he is a half-baked alchemist, he can refine a top-grade pill.

"Are the rest of the metal materials ready?"

Xu Feng asked.

The alchemy furnace also needs to burn the formation pattern to improve the quality of the Dan furnace to at least above the magic weapon, otherwise it will be blind to this excellent Dan furnace.

The chief of staff said: "We haven't found the metal materials you want, but we have prepared some substitutes, you can take a look first." ”

The guard lifted the tarpaulin from the shelf, revealing a row of metal blocks glowing blue.

"These alloys are smelted from the unique blue gold ore found on Mars. ”

"I'll see. ”

Xu Feng was curious.

Pick up a piece of alloy and weigh it, it's a little heavy.

Conveying mana test, it turns out to have a very high affinity with aura.

"You can use it!" Xu Feng nodded, "Just send the medicinal herbs here, and then send some energy crystals over." ”

There was no need for the chief of staff to speak, the clerk walked out for dozens of seconds, and after three minutes, he transported the medicinal materials that Xu Feng needed, plus two thousand lower grade spirit stones, and one hundred medium grade spirit stones.

Looking at this pile of spirit stones, Xu Feng felt that he was too happy.

There's no way, I'm crazy for the spirit stone on the earth!

With this batch of spirit stones, everything is ready to build the foundation.

With joy in his heart and an indifferent look on his face, Xu Feng sent the chief of staff and the others out of the alchemy room.

Since he has received the benefits of the chief of staff, he is really sorry for so many spirit stones if he doesn't wake up the major general.

"First burn the formation patterns for the three alchemy furnaces. ”

In terms of formation, Yanghexing's predecessor was the Great Grandmaster of the Formation Dao, and the little Dan Furnace was no problem.

Moreover, the legendary old monster of the predecessor and Danding Gate studied the problem of how to burn the formation pattern for the Dan furnace in order to refine the high-quality pill for three months, and wrote a "Exploration of the Dan Furnace Formation Pattern", which was popular in the Yanghe Xing Dan Dao Realm.

The predecessors planted trees, and the descendants enjoyed the shade.

Xu Feng only needs to follow the "Dan Furnace Formation Pattern Exploration" and burn the formation pattern for the alchemy furnace step by step.

Especially in the case of the best alloy materials provided by the Chief of Staff.

Rise!

A piece of alloy flew in front of Xu Feng, glowing with a faint blue light.

Xu Feng swiped his right palm, and a light purple spiritual flame fell below the alloy block.

A second passed, and the alloy block did not change at all.

A minute passed, and the alloy block still didn't change at all.

Three minutes passed, the alloy block was slightly red, and Xu Feng's face flushed.

Xu Feng's complexion was a little unbearable, this was the unique Xuantian Spiritual Flame in the Purple Qi Imperial Void Spirit Technique, although it was a primary-level state, it was not even able to smelt this metal block.

Bang!

The metal block fell to the ground, and Xu Feng's face was not good.

Melting alloys and controlling the burning of molten metal in the Dan furnace requires a single go.

Right now, even if he succeeds in smelting the alloy into liquid, the mana in his body is only afraid that there will be no one left, and at that time, let alone burning the formation pattern, it is possible to destroy this alchemy room.

With a wave of his hand, six hundred and forty lower-grade spirit stones and thirty-six medium-grade spirit stones flew out.

Under the guidance of the divine sense, it does not form a spirit gathering array, as well as a spiritual flame amplification formation.

"Come again!"

Xu Feng took a deep breath.

The Xuantian Spirit Flame fell below the alloy block.

The Spirit Flame Amplification Array was immediately activated, and an extremely terrifying heat wave spread.

If it weren't for the fact that this Xuantian Spirit Flame didn't belong to Xu Feng, even if he was a flawless Dao body, it would be strange if he didn't bake it directly at such a close distance.

"Melt!"

In the dantian, a wisp of purple qi flew out and drilled into the Xuantian Spirit Flame, and the power of the Spirit Flame increased by sixty percent.

The alloy block quickly melted at this moment, turning into a golden-blue liquid.

"It's not good, there are still fifty percent of the mana left in the body, be fast!"

Xu Feng calmed down, changed the method again, injected molten metal into the first Dan furnace, and burned the formation pattern under the guidance of his divine sense.

The array was glowing with blue light, flowing and growing naturally on the Dan furnace like a stream.

It cools down for a while, as if it is in harmony with the alchemy furnace!

"Close!"

Drop the last point.

The formation pattern in the first Dan furnace was finally burned.

This is the Danling No. 1 Array that integrates Spirit Flame Amplification, Spirit Flame Control, and Medicinal Properties Refinement.

Speaking of the names of this formation, they are all masterpieces of the predecessor of Yanghexing and the legendary old monster of Dandingmen, but both of them are too lazy to choose a name, so they simply name it according to one, two, three, four, five.

The word "Dan Ling" means that the two of them believe that the alchemy furnace made according to their research results has a great possibility of giving birth to Dan Ling and becoming a spiritual weapon in the future.

Call!

Xu Feng's hands trembled a little.

In order to burn this alchemy furnace, he can be said to have put all his strength into it, and he was almost exhausted.

The mana in the body is only one percent left, and this is still the result of the maintenance of the yin and yang seas.

"The purple qi just now added to the Xuantian Spirit Flame, which increased the power of the Spirit Flame by ......"

Xu Feng sat down cross-legged, thinking while recovering.

The dantian purple qi brought him more and more surprises.

If it is against the enemy, adding a trace of purple qi to the Xuantian Spirit Flame will definitely have an amazing effect.

However, the problem came again, the purple qi in the dantian was not very controlled by him.

It's embarrassing.

Two hours later, the mana in Xu Feng's body recovered, and then burned the formation pattern for the second Dan furnace.

Outside the alchemy room was a sandy area, and according to Xu Feng's request, no guards were left.

The guards were all deployed five hundred meters away.

The Chief of Staff temporarily returned to work on the matter, leaving only the Registrar to wait.

The clerk didn't understand why Xu Feng made such a request.

You can only do everything.

Suddenly, a figure dived within five hundred meters.

"Little spiritual master, pretending to be a ghost, I can't see what kind of mystery I have!"

With a wild laugh, the person who came turned out to be the top innate martial artist of the rebel army, and he couldn't!

The clerk's expression changed drastically: "Someone!"