The piece on the right has some impurities, a slightly floating smell, and a slight lack of heat.

"What kind of material is this, and what does it have to do with Wan Yan's essence?"

Su Yun frowned slightly, knowing nothing about this material.

But after a moment of careful sensing, the corners of his eyes contracted and his mind was shaken! "Hiss! This is..." Su Yun suppressed the excitement in his heart, took a deep breath, and concentrated on feeling the breath of these two pieces of materials again.

"Yes, it is indeed it - space spiritual power!"

In these two pieces of material, it felt clear spatial spiritual power. Although it was not as strong as the empty crystal sand, it seemed to be deeper and more powerful! These things were exactly the space he had been looking for for a long time but could not find.

Material! Su Yun's thoughts surged and he could hardly suppress his inner excitement.

Ever since the "Void Transformation Formation" encountered difficulties, he had been searching hard for a way to crack it, but unfortunately he had never been able to find materials containing space spiritual power.

As a result, the shortcomings of this powerful escape technique have not yet been completed. Now that he finally found such a batch of materials, the surprise in his heart is simply indescribable! "Great, great!"

Su Yun took a deep breath, resisted the impulse in his heart, and prepared to put them in his bag.

But at this moment, something unexpected happened! He suddenly discovered that the aura of these two pieces of material was slowly deteriorating.

"Well, what's going on?"

In an instant, the crystal in his right hand became turbid, and the impurities that once disappeared appeared again.

Although the crystal in the left hand has changed slightly, a small amount of impurities have reappeared.

"oh?"

After Su Yun thought about it for a while, he understood the reason.

The purpose of refining these materials here is to use the powerful fire power to refine them and remove the impurities within them.

He moved to pick them out, thus interrupting the refining process of these two pieces of material.

The piece of material in the left hand has not changed much because the sacrifice is about to end.

However, due to the slow refining speed of the material in the right hand, there were obvious repetitions, and the impurities that once disappeared solidified and appeared again.

Su Yun shook his hands together and put the two pieces of materials back to their original places, allowing them to continue to undergo the sacrifice.

Boom! Under the baking of the spiritual fire, the two pieces of materials immediately resumed the sacrificial refining process, and the impurities inside were slowly refined and removed.

Su Yun scanned the space, frowning and thinking! He originally wanted to put away these materials directly, but judging from the current situation, it was not appropriate to take action rashly.

The sacrifice is coming to an end. If it is interrupted right now, the previous efforts will be in vain.

And once you leave here, it will be extremely difficult to find a fire vein of the same grade.

Su Yun frowned and weighed silently.

These materials amount to tens of thousands of yuan, and their value is immeasurable. They cannot be missed in vain.

But it is obviously not yet time to collect them.

After a short weighing, he made a bold decision: complete this sacrifice with the help of the Jade Cauldron Sect's fire veins, and then take them all away! But there is still a difficulty in doing so.

The current sacrifice speed is obviously slower, and he does not have enough time and conditions to wait here.

At the same time, six elders of the Jade Cauldron Sect were cleaning up the mess in the fire vein space on the left. Once the cleaning was completed there, he would be in trouble.

"We must find a way to hold them back!"

"Spirit Swallowing Rat, go!"

Su Yun hesitated for a moment and then issued the order decisively.

Whoosh! The spirit-swallowing rat came out in response, turned into a ray of silver light and swept into the left passage. While the elders of the Jade Cauldron Sect were busy, they quietly caused chaos, causing the spiritual energy of the space to surge wildly.

Boom...Boom! Boom! In the dull roar, smoke and dust danced wildly in the fire vein space, rocks collapsed, and the billowing fire spiritual power raged crazily, turning it into a complete mess.

"Damn it!"

"What's going on?"

"Is it because the spiritual pulse is restless?"

Everyone was furious and yelling angrily. They wanted to suppress the agitation in their spiritual power, but also to clean up Wan Yan's spirit. Their hands and feet were in chaos for a while, and it was difficult to look at the beginning and the end.

Su Yun smiled coldly, set up several prohibitive barriers in the passage on the left, and then quickly retreated to the fire vein space on the right, summoning fire spiritual power.

Rumble! Amidst the dull roar, the rolling spiritual fire gathered at an accelerated rate, continuously impacting the sacrificial formation under his call.

Although doing this is a bit risky, it is also a helpless move.

Because he didn't have time to wait silently step by step, he could only intervene manually and forcibly increase the speed of the sacrifice.

Even if there are certain risks in doing so, and he may even lose part of the crystal, he will not hesitate.

These things are external to the body, even if you can only take away half of them, it will be a waste of money.

Under his call, the fire spiritual power in the void rose rapidly, reaching an astonishing level.

Su Yun observed attentively that the impurities inside the crystal were melting at an accelerated rate and were being continuously removed by the fire spirit power.

"good!"

This situation is completely in line with expectations, but the speed is still not fast enough. At this speed, it still takes two or three hours to complete the sacrifice.

It was still too slow for him! The Spirit-Swallowing Rat might be able to hold off those people for a while, but it would never be able to hold them back for long. Once the chaos over there is settled, he will be in trouble.

He could only continue to increase the intensity of the fire spirit power and increase the speed of the sacrifice to the limit! "Quick, faster!"

Boom! Su Yun pushed hard, and the billowing fire spiritual power gathered at an accelerated rate, but the improvement effect was not obvious.

He didn't stop there, but worked hard to think about ways to improve it.

After all, the effect of simple summoning and gathering is limited. If you want to continue to improve the fire spiritual power, you must use other methods.

"Water generates wood, and wood generates fire; wind helps fire, and fire borrows the power of wind; wind and thunder move together, and flames surge into the sky!" Su Yun's thoughts raced in his mind, and he raised his arms and decisively deployed the water spiritual power and wood spiritual power! Boom...

Boom! The dull roar resounded through the void, water spiritual power and wood spiritual power poured into the sacrificial formation, and the aura flashed wildly in the void and the power of flames surged! "Very good!"

Su Yun's eyes shone brightly, he waved his arms fiercely, and two wind pillars spiraled out! Boom! The two wind pillars circled one after another, bringing up the powerful wind spirit power, and the power of the flames suddenly increased!

These two methods directly doubled the speed of the sacrifice, shortening it from the original two or three hours to about one hour.

But this speed is still too slow for Su Yun! Crackling! Rumble! Golden thunder dragons roared out, exploding crazily in the void, setting off a billowing spiritual power frenzy! The already violent flames seemed to be stimulated.

, the power increases again and again.

At the same time, the wind spirit power was also touched, and the power of the two wind pillars increased again.

Several methods were used together to increase the speed of the sacrifice.

Hiss... bang bang bang! There were bursts of strange sounds. Su Yun looked intently and saw impurities in dozens of square crystal stones gushing out at an accelerated rate where the fire spirit power had the strongest impact.
Chapter completed!