In a neat and clean room, Su Han and Lu Xuan were cautiously busy.

After a few days of recovery, Lu Xuan's injuries were mostly healed, and after hearing that Su Han had found a solution, he insisted on developing the Thunder Breaking Yuan Arrow as quickly as possible.

This kind of attitude of a scientific research madman makes Su Han have to admire.

The manufacturing process of the Thunder Breaking Yuan Arrow is actually not complicated, one is to forge the arrow shaft, with extraterritorial star iron, repeatedly forged 10,000 times, the surface appears similar to the star-like light point, and the internal veins are accessible, which can be used.

And the most complicated project lies in the second step, which is to depict the formation on the arrow shaft, which requires extremely delicate operations, of course, at the level of two people, this is not a problem.

And the last step is to place the energy core, and using the immortal stone as the energy core in the center of the formation is the easiest step.

The indescribable taste in Lu Xuan's eyes.

I never imagined that I would fall on this step.

In fact, when Su Han just told him the reason, he was so depressed that he almost cried.

How many days and nights of research, I don't know how much effort I have put in, but what I got is such a result, first, the drawings themselves are wrong, and second, even if there are drawings, they cannot be developed at all.

Such a discovery almost made him collapse, but in the end, it was the grandmaster, and he soon came back to his senses.

Although he didn't know where Su Han got the immortal stone, he didn't ask much, everyone has their own secrets.

……

At this time, Su Han was holding a slender carved pen, carefully sketching on the narrow arrow shaft, his eyes squinted slightly, Su Han's spirit was condensed to the extreme, outlining the formation, and there was no room for the slightest mistake.

In fact, Lu Xuan had strongly asked him to do it, but considering his physical condition, Su Han still refused.

Minutes and seconds passed.

When his eyes were sour to the extreme, Su Han held back the tears that were about to fall, widened his eyes, and completed the final stroke.

Call......

There was a quiet wind in the room.

The three perfectly fused formations on the shaft of the arrow revealed a wonderful power, like a small whirlpool, attracting the aura of heaven and earth in the room, and as soon as the formation was completed, it was floating in mid-air.

"It's done." Su Han grinned, feeling a sense of accomplishment in his heart.

To be honest, when he was in the immortal realm in his previous life, although he knew the refining method of the Dao Thunder Breaking Yuan Arrow, he actually refined it himself, and this was really the first time.

"It seems that my brother still has a bit of talent in this way." Grunting, Su Han glanced at Lu Xuan, only to see a nervous look on his face.

"Master Lu, stay away, I'm ready to take the last step."

Although both of them were wearing armor at this time, Lu Xuan was recovering from a serious injury after all, and he had not yet recovered from his serious injuries, so Su Han was afraid that if there would be any more accidents.

Lu Xuan waved his hand, "No." ”

Su Han laughed, this person is really crazy.

He didn't force it, he took out nine immortal stones casually, and a month after another mysterious magic seal was formed in his hand, and the immortal stones were slowly melting, turning into the tiniest particles.

The internal structure of the immortal stone is similar to a beehive, and Su Han's current treatment method is very common in the immortal world, called scattered spirits, under the premise of preserving the energy of the immortal stone to the greatest extent, it is divided into the finest particles, so that it is perfectly integrated into the body of the arrow.

In less than a stick of incense, Su Han scattered the spirit, and there seemed to be countless fireflies floating in the air, which was beautiful.

Taking a deep breath, Su Han slowly drove these immortal stone fragments towards the body of the arrow.

When that first bit of light melted into the body of the arrow, Su Han's body trembled, and he felt a powerful force of shock, and he held back stiffly, but the movements in his hands did not stop at all.

Little by little, the light flew into the body of the arrow, and the power of the anti-shock became stronger and stronger, Su Han gritted his teeth, not daring to be careless.

Three hours later.

A soft groan suddenly sounded in the room, golden light, and a heavenly thunder crossed a long distance, fell out of thin air, and hit the thunder breaking arrow with a bang.

Under the powerful current, Su Han spurted out a mouthful of blood, and his face turned pale.

But in his hand, he was holding on to this long arrow, not daring to relax at all.

The attack of the heavenly thunder lasted for nearly three breaths, and when the heavenly thunder completely dissipated, the surface of the thunder breaking through the Yuan Arrow gave birth to an extremely wonderful change.

On the original dark arrow body, a little bit of light appeared, like a sky full of stars in the vast universe, and a trace of electricity flashed from the arrow to the tail of the arrow, revealing extremely powerful energy.

A majestic and vast momentum suddenly emanated.

"It's done, it's ......"

"Finally it worked!"

Lu Xuan's whole body trembled, his eyes were extremely excited, and he fell to his knees all of a sudden, like a most devout believer.

Over the years, as a Grandmaster who had already stepped into the top level in the Blood Moon Continent, his greatest wish was to research this Thunder Breaking Yuan Arrow, and now, he had finally succeeded.

How can he not be excited?

Su Han glanced at him, smiled, picked up the engraving pen casually, thought about it slightly, and carved two small characters at the end of the arrow.

Lu Xuan.

Seeing Su Han's movements, Lu Xuan's complexion changed, a hint of joy appeared in his eyes, and then he was deeply ashamed.

Unexpectedly, Su Han would be able to do such a thing.

"You...... You ......" Under the excitement, Lu Xuan couldn't even speak, and it was really a supreme honor for him to obtain the naming right of this Thunder Breaking Yuan Arrow.

"Master Lu, it's just a name, there is the first branch, there is a second branch, and a third branch."

"Okay, okay." Lu Xuan's face was full of excitement, but he couldn't help nodding.

By now, he had completely recognized Su Han, and even had some reverence.

Whether it is wisdom or heart, this young man is the best choice, and he is really a genius.

……

After a brief exchange, the two went out, eager to test the power of this Thunder Breaking Yuan Arrow.

As soon as I walked out of the room, I saw a group of people with surprise in their eyes, and there was a hint of apprehension in the surprise.

"Success?" Linglong was the first to ask.

Su Han nodded lightly and smiled at Lu Xuan.

"Wow!" Linglong exclaimed suddenly, grabbing Su Han's arm, "You are so powerful, how did you do it?" ”

"Ask you Uncle Lu, he is better than me." Su Han said modestly.

Lu Xuan's face was slightly red, and he coughed dryly and looked at the two old friends.

The two of them were also full of red light, and they were staring intently at the long arrow in Lu Xuan's hand.

Although one of them is a physician and the other is a poisoner, under the influence of Lu Xuan over the years, they are also quite interested in the mechanism refining tool, and now, seeing the fulfillment of the long-cherished wish of their old friend for many years, they are indescribably happy in their hearts.

"Go and fetch my star bow, and I'll try my arrows. Let's get out of the valley. Lu Xuan said.

Quickly took the star bow, took the flying magic weapon, and flew towards the sky, and when he reached the top of the valley, before he flew out of the thick fog, Su Han's ears moved, as if he had caught some kind of sound fluctuation in the air, and suddenly said, "Stop!" ”

Linglong was stunned for a moment, but stopped the magic weapon, "What's wrong?" ”

"There are people out there, and there are quite a few." Su Han's face was a little solemn.

It can probably be heard that there is definitely not just one person outside, but at least a hundred, hundreds of people, who surround this place tightly.

"What's the situation?"

Lu Xuan was stunned for a moment, rubbed in his arms for a long time, took out a bronze mirror, rubbed it on the mirror for a while, and the bronze mirror suddenly appeared bright.

The scene outside is clearly visible on the mirror.

It was a group of warriors wearing standard armor, all of whom had extremely strong breaths, and they were obviously well-trained troops.

"Changshengwei?"

Lu Xuan exclaimed suddenly.

"How could it be the Immortal Guard, what are they doing here?" Linglong asked with a grunt.

Changshengwei?

Hearing these three words, Su Han's heart moved.

I once heard Linglong inadvertently mention that there are a total of thirteen elders in the Immortal Heaven, and they have formed the Elder Council as a check and supplement to the power of the Martial Saint, and this Immortal Guard is the most elite power in the hands of the Elder Council.

If you want to join Changshengwei, you start with the early stage of Jindan.

At this time, Su Han couldn't help but think of the scene he saw a few days ago.

The picture of the death of the martial saint.

Could it be that the Immortal Heavenly Martial Saint is really dead?

Still is......

What happens to this?

"Linglong, find a way, first arrest a person in and ask about the situation. Don't you have a rope-like artifact? Su Han's mind raced and he spoke.

Linglong quickly came back to her senses, took out a golden rope, and gritted her teeth, "Okay." ”

At this time, her face was a little anxious.

Although she was naïve, she was not stupid, and when she saw such a scene, she also subconsciously came up with the hexagram she saw that day.

Could it be that something is wrong with my brother?

Otherwise, this group of people would not dare to come here.

Gritting her teeth, pinching a decision, Linglong rose into the air, like a shark jumping out of the water, and seeing a group of immortal guards outside who didn't have time to react, the golden light in her hand meandered, and in an instant, she tied up a man who seemed to be the leader, and with a pull of her hand, she dragged him into the clouds.

A moment later.

When such a thing happened, several people didn't have the heart to try the arrow, and flew back to the bottom of the valley, all staring directly at the man on the ground.

This man, with a big beard and a very rough appearance, but his eyes are small, revealing a hint of shrewdness.

"What's your name?"

"What are you doing here?"

"What happened to Immortal Heaven?"

Su Han asked.

At this time, a group of people faintly regarded Su Han as the backbone.

"Who are you? Trespassing on my immortal forbidden land, damn it! The bearded man shouted, his voice revealing a strong majesty.

Without saying a word, Su Han slashed down with one hand, hitting him on the shoulder, and with a click, this person's arm hung down softly.

Linglong let out an exclamation and subconsciously took a step back.

She had never seen Su Han so ruthless.

And the man on the ground, his face was pale, and big drops of sweat fell from his forehead, but he gritted his teeth and didn't say a word, not even screaming.

"Heh, it's quite tough, it's okay, it's still a long time, let's play slowly."

Su Han said slowly, even if he cut down again, this person's other hand was abolished again.

"You!"

"Ahh

The man let out a mournful cry and struggled on the ground like a fish thrown ashore.

"Let me ask you again, what's your name?"

"What are you doing here?"

"What the hell happened to Immortal Heaven?"

Su Han's face was cold, and he asked coldly again.