The precondition for the use of the reinforced furnace is inevitably the need for sufficient material accumulation.

The acquisition of materials, according to the original needs, from low-level to high-level, are furnace carbon, high-level element crystallization, and cosmic soul.

Duhi has now found an iron ash mine that can replace furnace carbon.

and various elemental stones that can replace the crystallization of higher elements.

But only, the soul of the universe crystallized, there is no news at present.

But now.

Pregnant.

This means:

As long as you have enough money to buy elemental stones to continue to increase the level of the furnace, then there is no fear of follow-up materials.

Du Hei was pleasantly surprised.

Originally, he just planned to kill this powerful seventh-order fierce beast, but he didn't expect that there would be an unexpected joy.

"But ......"

"Low-level cosmic soul crystal?"

Du Hei muttered in his heart, trying to choose to absorb.

The next moment.

At the edge of the original pile of brilliant crystals, this crystal nucleus appeared.

And the information is more abundant than before.

【Low-level Cosmic Soul Crystal: Fire Poison Attribute】

【Fire Poison Attribute Items Enhanced】

[Note 1: Using primary cosmic soul crystals, the success rate of enhancement is only one-tenth of that of ordinary cosmic soul crystals]

[Note 2: Primary Cosmic Soul Crystals can be smelted into ordinary Cosmic Soul Crystals, and the number required is related to the quality of crystals]

After reading these messages.

Du Hei only had an instant, and he immediately dismissed his plan to use this thing.

The success rate is too low.

To know.

At present, the success rate of the current level is only about two or three percent.

In the future, I am afraid that the success rate will fluctuate around 1 percent.

On this basis, if you take another tenth, it is basically not a gamble, but a gift of money.

"But I don't need it right now. ”

"It's okay to sell it. ”

Duhei is in no hurry to upgrade the furnace.

Speaking of which.

The Fortified Furnace has just been upgraded.

It seems to be a good idea to sell it and use it to buy elemental stones, and continue to move up the current level.

After all, the price of this beast crystal nucleus is not expensive.

Just like this, the crystal nucleus of a seventh-order fierce beast is possible to sell it for nine or ten digits.

The crystal nucleus of the eighth-order fierce beast has to be multiplied several times.

Put the crystal nuclei away.

At this time, Du Hei did not forget what his current situation was.

He had currently slain the strongest beast in the direction of one of the walls, as was normal.

In the direction of this wall, there is almost no threat.

In the absence of a leader, the low-level fierce beasts will soon collapse.

After all, he had left behind many powerful summoned beasts on that wall.

So many summoned beasts were enough to make these low-level fierce beasts frightened.

But that's not the end of the story.

At this moment, there are still three remaining city walls that are still under attack by the tide of fierce beasts.

Even in the direction of one of the city walls, there will be the initiator of this fierce beast siege, the existence of the eighth-order fierce beast.

Feel the majestic power that fills your body.

At this time, Du Hei shook his head regretfully: "It's a pity that without the scope of the Four Spirits Array, this blessing no longer exists. ”

There's no way around it.

The Formation of the Four Spirits, after all, is a formation.

The tenth-order formation absorbs the surrounding aura, and it is only within it that it has such abundant and majestic power, and it can be mobilized.

But out.

These forces are uncontrollable, so Du Hei can't maintain his current state and go out to fight directly.

Otherwise, wouldn't the children of those big families be able to kill the enemy beyond the level with a tenth-order formation, or even an extraordinary-level formation?

The formation is powerful, but its limitation is that it cannot be moved.

"We have to find a way to bring in those powerful beasts. ”

Du Hei is also under some pressure at the moment.

In the direction of this wall.

He wasn't far from the formation position.

Naturally, he can ensure that he enters the formation 100%.

But if you go in the other three directions, it's not the case.

In particular, in the opposite direction of the formation, the eastern wall was located at the other end, and he needed to cross the entire distance of the wall before he could return here.

Such a long distance.

If it's an ordinary seventh-order fierce beast, that's it.

He's confident he'll be able to pull away and come back here.

But if it's an eighth-order fierce beast?

Or even if it's not an eighth-order, or a seventh-order high-level fierce beast, that speed is a big cut away from him.

But there seems to be no other way out.

It is impossible to move in a short period of time.

After all, if the formation is arranged, there will be huge aura fluctuations, and those fierce beasts are not fools, if they notice it, they will run over as soon as possible, and when the time comes, he will not even have a way to retreat.

"It's a bit of a problem. ”

Du Hei bared his teeth, thinking about what to do.

This entanglement lasted for nearly five minutes.

Finally, Du Hei seemed to have made up his mind.

He probably had some ideas.

The most intuitive way to lure the enemy deep is to let the enemy see a flaw.

That's what he did.

But is there anything else that can be done?

Duei thought of it.

Let the enemy can't restrain his own attack, and don't even care about traps or not.

It's hard this way.

But he has the conditions to achieve this.

Ichor of life.

A thing that even an extraordinary beast would flock to.

If you take this thing out, even those eighth-order fierce beasts will rush over desperately, right?

Du Hei thought so in his heart.

Finally, the arrangement of the formation was dispersed.

His appearance made the hearts of everyone in the distance feel relieved.

Just now, many people thought that Du Hei was going to die.

Until finally they saw the formation appear, they were shocked at the same time, but they were a little relieved, and they also arranged the back hand.

But alas, they couldn't see the situation inside the formation.

It wasn't until now, seeing Du Hei appear, that he was completely relieved.

However, it is too late to breathe a sigh of relief.

At this time, they saw that Du Hei, who had just come out of the formation, summoned a flying beast again, and actually went straight towards the back of the fierce beast wave.

"What a talent!"

"With the power of one person, he repelled the tide of an entire city wall. ”

"He went this time, probably to completely defeat the army of fierce beasts!"

At this moment, everyone has great trust in Du Hei.

And in fact, it is.

As Du Hei approached, a large number of fierce beasts retreated in fright.

The momentum of the charge collapsed directly.

Du Hei didn't pay attention to those fourth- and fifth-order fierce beasts.

His target was those fierce beasts above the sixth order that were at the rear.

Finally, when Du Hei arrived not far from the sixth-order fierce beast, he suddenly took out a test tube containing the green solution from his pocket: "Do you know what this is!"