Yao Chu looked at the spirit stone in his hand and fell into deep thought.

The manufacture of low-level spirit stones was almost easy, except for the inscription, which was more difficult, there were almost no other steps that could stop Yao Chu.

It can be said that if it weren't for the inscriptions carved on the ore, it would have wasted a lot of time, and it would have taken a lot of energy, with the aura that has almost no bottom line, Yao Chu can produce spirit stones almost at any time, and it is completely a walking otherworldly money printing machine!

But for Yao Chu, he has limited time, and it is impossible to spend time on making spirit stones all the time, so making low-level spirit stones is actually not cost-effective for Yao Chu, so Yao Chu has an idea, can he make middle-grade spirit stones?

If you can, you're really not short of money! and you have a lot of free time to do other things.

Yao Chu looked at the ore in his hand carefully, and the aura continued to purify the thing in his other hand, and then injected it into the ore in his hand.

It is worth mentioning that the items used for purification are also made by Yaochu, and the natural shape is not good to see there, like a circle is not a circle, like a square is not square, and the two are not like it.

In fact, when Yao Chu forged, he wanted to make it a round shape like the City Lord's Mansion, but after thinking about his level, he wanted to make it square, so that he could hold it in his hand, but he felt that the round shape was good-looking, and when he was moving from time to time, the shaping time had already passed. And in the wilderness, the materials are not easy to collect, so they can only use this nondescript item.

(The old dragon is secretly sad...) ）

Although the thing is not very good-looking, it still has a good effect, and it can support most of Yao Chu's input aura torrent, which is much better than the inferior disposable items of the City Lord's Mansion.

The aura flowed into the ore rapidly, and soon the aura content of the ore exceeded that of the low-grade spirit stone, and it was moving towards the content of the middle-grade spirit stone, and the color also changed from gray to white, becoming more and more crystal clear.

After a long time, Yao Chu frowned and took out the middle-grade spirit stone seized from the man in black, in contrast, Yao Chu sensed that the ore infused with a large amount of spiritual energy still could not reach the purity of the middle-grade spirit stone.

Yao Chu looked at a wave of ores, up and down, left and right, and looked at it all over the right, although there was a lot of spiritual energy infusion, it still couldn't reach the standard of mid-level spirit stones, what was the reason?

Could it be that man-made spirit stones can only make low-level spirit stones, and it is difficult to reach the level of intermediate level?

Or is it that the purity of his aura is not standard enough to meet the requirements of making mid-grade spirit stones?

Yao Chu didn't understand, but maybe there would be an answer later.

Looking at the ore in his hand, the aura far exceeds that of the low-level spirit stone, but it does not meet the requirements of the middle-grade spirit stone, it feels like chicken ribs, tasteless to eat, and it is a pity to abandon it.

Yao Chu had a toothache on his face, how to deal with this? If you use it directly, it will almost arouse suspicion, and it is a pity to lose it.

Almost like a milky white gem, Yao Chu felt its internal aura, and an idea suddenly popped into him. The aura content of this ore has not yet reached the limit, if you continue to inject aura, can you use the quantity to break through the qualitative limit, and the quantity changes to qualitative change?

You should be able to try it!

In order not to waste time, Yao Chu kept injecting spiritual energy into the ore while looking for a way out.

Soon, the day passed.

Just when Yao Chu was still dual-minded, dealing with the spirit beasts in the forest and injecting spiritual energy, suddenly, his heart suddenly throbbed, and he hurriedly threw out the ore in his hand, ignoring the few unknown creatures with two horns in front of him, and immediately lay down in the low-lying pit.

"Bang!"

A dull voice sounded, but the voice was extremely quiet, not even as loud as the punch generated by Yao Chu's casual punch.

And the lethality is also small and pitiful, like a cannonball, with no power at all.

However, a burst of extremely pure aura was released in the air, like a ripple caused by throwing stones into the water, and the circle of aura radiated from the center of the explosion in all directions, until it floated into the distance out of nowhere.

After an eerie silence, the forest rioted!

All the spirit beasts and fierce beasts that sensed the aura rushed over from all directions, rushing to Yao Chu like a tide, regardless of other natural enemies and prey, just came here from instinct to feel the source of the aura.

Before Yao Chu could react, he was almost surrounded by the surrounding spirit beasts, and the place within a radius of several hundred meters was actually surrounded by water, and waves of spirit beasts were still rushing towards here, and more and more spirit beasts gathered.

Yao Chu was so frightened that his face turned white!

"Sting..."

"Click.."

He saw with his own eyes a few unknown creatures with horns that were blocked in front of him before, because they were very close to the explosion of the ore, and their bodies were contaminated with a large amount of spiritual energy, and in front of a group of powerful spirit beasts, several petite spirit beasts were quickly torn to pieces and swallowed into their stomachs by a group of crazy spirit beasts.

Even Yao Chu saw that the dense vegetation around him contaminated with spiritual energy was also swallowed into his mouth by this group of spirit beasts.

Hey, you're carnivores!

What's more, he didn't even let go of the soil contaminated with aura on the ground, and swallowed it into his body in a few mouthfuls.

Looking at the group of spirit beasts approaching step by step, as well as the spirit beasts that were still gathering, Yao Chu looked at the same contaminated aura on his clothes, and his heart was cold.

"It's over!

Yao Chu could almost imagine his fate, being swallowed and then pulled into poop.

Why do you have to touch that ore!

Yao Chu regretted it, regretted not at the beginning!

However, Yao Chu was not a person who was tied up and waiting to be killed, he took out Zangfeng's spear and watched vigilantly as the surrounding spirit beasts approached.

"Whoosh!"

"Bloodthirsty!"

Taking a deep breath, Yao Chu stabbed the wild boar that couldn't wait to rush towards Yao Chu with a bucket stab. This is the martial art "Blood Spear" that Yao Chu has cultivated in these days.

It is worthy of a spear that can be intact in an explosion, and it is extremely sharp, even with bloodthirsty thorns without blood, it can easily pierce a spirit beast.

Yao Chuchu still secretly breathed a sigh of relief, with this weapon, his chances of survival have greatly increased.

Killing a spirit beast with one blow did not make the beasts flinch, but the bloody aura fueled their madness, and they became more and more manic.

"Goo-goo..."

Yao Chu, who had only killed a spirit beast, did not relax his energy, raised his hand to spin the spear, and cut the giant frog behind him in two with a blood-breaking slash, and for a while the mucus mixed with the blood, emitting an unpleasant stench.

"Whoa, whoa..."

The rest of the spirit beasts did not stand still, and all of them frantically pounced on Yao Chu for a while, the sky and the earth were densely packed, and there was no space for Yao Chu to escape.

Yao Chu's eyes shot a fierce color, his aura surged, and the spear in his hand began to faintly exude a dark red color.

"Weeping Blood Dance!"

"Woooooo

Like a spinning top, Yao Chu spun in place, getting faster and faster, and finally even the air made an overwhelmed sound.

The spear in Yao Chu's hand emitted bursts of red light, and a red barrier formed in the rotation, blocking the attack of the spirit beast.

But the fact is that the sharp spear, with the blessing of the aura, grinds all the spirit beasts that dare to approach into slag, and there is only a puddle of blood!

In the blink of an eye, the first wave of spirit beasts close to Yao Chu had all died, and they were all ground into minced meat by the powerful power of the Weeping Blood Dance, and the blood-red soil stained by the dripping blood was the last proof of their existence!

"Snap"

Yao Chu held a spear, and blood flowed on the blade of the spear before dripping.

"Snap"

Yao Chu's sweat drops also dripped down, after all, it was only Yao Chu's first time using "Blood Spear" to fight, and there were still many deficiencies in the use of martial arts. Using martial arts very reluctantly will naturally consume a lot of energy.

After completely destroying the first wave of spirit beasts, Yao Chu didn't have a chance to rest, because the attack of the second wave of spirit beasts was coming soon!