Su Yu nodded solemnly, he knew very well how difficult the test he was going to face next, it was not easy to take the two supreme treasures from the hands of the Human King Bow Spirit, and his understanding of the formation method could be said to be completely unclear, how the Human King Bow Spirit would test him, he didn't know, he only knew that he had to deal with it with all his might.

The human king bow spirit raised his hand on the formation of the sixth layer, and in an instant, the formation of the sixth layer was activated, and the starry sky changed rapidly, and the original nine clusters of light that were floating in the space became sharp in an instant!

The space on the sixth layer is not large, and after the nine light clusters of different colors flow rapidly in the space, the sixth layer is filled with a heavy sense of oppression, and the sound of breaking the air is extremely harsh in Su Yu's ears!

"All the treasures I have treasured for thousands of years are here, which two treasures do you want?" asked Su Yu as he pointed to the nine light clusters that were flying rapidly in the formation.

"Divine Iron, Creation Immortal Dew!" Su Yu said firmly, he was bound to get these two supreme treasures!

Shentie is a special piece of fine iron formed by the convergence of heaven and earth aura, different from ordinary steel, Shentie is a piece of fine iron with a very rich aura, and the appearance of Shentie is changeable, even the color is also varied.

It is not easy to form divine iron, only in the iron ore with extremely rich aura can it be born that little, and that little divine iron almost gathers all the iron essence and aura around the entire iron mine, in front of divine iron, any steel will look overshadowed!

Su Yu already has an alchemy rope, and the alchemy rope can ensure that the quality of the traceless sword will not be damaged in the slightest during the washing and casting process, and the divine essence in the divine iron can not only repair the traceless sword that has been somewhat damaged, but if the opportunity is enough, it can also make the level of the traceless sword go further!

However, the two treasures of Alchemy Rope and Divine Iron are only auxiliary in the process of washing and casting, and the real key is to create Immortal Dew!

The Immortal Dew is the main material for washing and casting the Traceless Sword, the Traceless Sword has been covered in the stone cave for thousands of years, and the edges are covered by thick rust, and the materials of the Traceless Sword are all selected from the highest, and the extraordinary washing and casting materials can wash and cast the Traceless Sword into its original appearance.

The reason why the Burning Sacrifice Vessel Spirit took such a great effort to let Su Yu gather the three kinds of Arcana Washing and Casting the Traceless Sword was because the Traceless Sword was about to give birth to the Sword Spirit, so he wanted to gather the three kinds of Arcana Washing and Casting the Traceless Sword!

Also as a machine spirit, the Burning Instrument Spirit knows how difficult it is for a machine spirit to be conceived and formed!

If there were any flaws in the process of washing and forging the Traceless Sword this time, then the spirit embryo that had been conceived in the Traceless Sword for a long time would definitely be destroyed in an instant!

Although the Traceless Sword did not really give birth to its sword spirit, but for the Sacrificial Ritual Spirit, whether the Traceless Sword had a sword spirit or not was extremely important, since it had a spirit, the Traceless Sword had never left its sight, not only in the stone cave for thousands of years, but also a partner who had joined hands when the person was famous.

Without a sword spirit, the Sacrificial Vessel Spirit is a companion when the Traceless Sword is a companion, and it is even better to have a sword spirit!

The Traceless Sword gave birth to the Sword Spirit, which was a joy to see the Sacrificial Vessel Spirit, and every time I thought of the thousands of lonely years in that stone cave, the Sacrificial Vessel Spirit felt as tasteless as boiled water, and that feeling it never wanted to have a second time.

The sword that can give birth to the sword spirit is undoubtedly a good sword, but a good sword may not be able to give birth to the sword spirit, and it is not easy for any weapon to give birth to its spirit, not only to see the material of the weapon itself, but also to see its chance!

A weapon made of ordinary materials is categorically unable to give birth to a weapon spirit, and a weapon such as the Martial King Axe has not given birth to a trace of spiritual intelligence.

Weapons with machine spirits must all be immortal weapons, but not every immortal weapon has this kind of opportunity to give birth to machine spirits, let alone a traceless sword that is not yet an immortal weapon!

The weapon that can breed the spirit of the machine under the immortal weapon can be described as a rare water chestnut, once there is a tool spirit, there will be a qualitative leap, and it will be directly promoted to the immortal weapon!

And the Traceless Sword is one of those rare water chestnuts!

Without the Creation Immortal Dew, the Burning Sacrifice Vessel Spirit really didn't dare to wash and forge the Traceless Sword at will, but as long as there was the Creation Immortal Dew, the worries of the Burning Sacrifice Instrument Spirit could be completely left behind!

The creation of the fairy dew can take its word creation, which is enough to explain the anti-heaven of the creation of the fairy dew, using it to wash and cast the traceless sword, not only can ensure that the spirit embryo in the traceless sword will not be damaged in the slightest, but also can warm the spirit embryo, greatly improving the speed of the sword spirit to open the spiritual intelligence!

"Do you see that blue-white light cluster and that pure white light cluster? inside the blue-white light cluster is Divine Iron, and inside the pure white light cluster is the Creation Immortal Dew!" After the Human King Bow Spirit activated the formation, he pointed to two of the nine light clusters flying and scurrying in the formation, pointing out to Su Yu.

"See. Su Yu clearly saw those two rays of light, and his eyes were full of fiery color, those were the two treasures he needed!

"If you can persist in this formation for half an hour, and get the Divine Iron and the Creation Immortal Dew with your own hands, in addition to these two supreme treasures, I am willing to give you another spiritual treasure!" added the Human King Bow Weapon Spirit, this condition sounded very tempting!

"However, if you can't get the Divine Iron and Creation Immortal Dew in half an hour, it's better to leave with this old thing as soon as possible!"

Half an hour is not a long time, but it is not short, he knows the power of this formation very well, with Su Yu's strength, it is not easy to hold on to half an hour!

The nine light clusters of different colors flashed quickly in the space of the sixth layer, leaving a long tail behind, the nine light clusters were extremely fast, but they followed a certain law, and none of the light clusters touched each other!

In Su Yu's eyes, these nine flying light clusters were extremely fast, sealing the entire space of the sixth layer, and I am afraid that it will not be able to take advantage of the air.

Su Yu's gaze stayed on the pure white light cluster, both the Divine Iron and the Creation Immortal Dew are very important, but compared to the two, there is no doubt that the Creation Immortal Dew is more important than the Divine Iron, without the Divine Iron Su Yu can try to find other materials to replace it, but if there is no Creation Immortal Dew, then it will not be able to wash and forge the Traceless Sword, and more importantly, the long-conceived spirit in the Traceless Sword will be destroyed!

Su Yu decided to get the Creation Immortal Dew in his hands first and then take the Divine Iron, he wasn't sure if he could last more than half an hour, but he knew that as long as he could get these two supreme treasures in his hands, it didn't matter if he could hold them for more than half an hour, as long as the two supreme treasures of the Divine Iron and the Creation Immortal Dew were in his hands, he and the Burning Vessel Spirit would have room to speak!