After Gu Xiaowu took a look at his dantian, he gritted his teeth and took off the space bracer on his other wrist, there are not many things in it, but they are all precious materials used for Cheng Dan after condensing the spirit, but they are all precious materials that their group risked collecting in those fourth-order alien spirit nests, and the value can be imagined. In order to allow him to distinguish these materials, Yun Lan also specially bought a space bracer and divided it for him separately, and cautiously told him the value of the things inside, after all, the materials used for Cheng Dan are difficult to obtain. Most of them were precious 10,000-year-old elixirs, but there were also hundreds of pieces of materials of different sizes and crystal nuclei of fourth-order alien spirits, and his purpose was still those cherished materials and five crystal nuclei with different attributes, and the power in these materials and crystal nuclei should also be refined and used to build nests in the dantian.

He was right, those materials that were useful to Cheng Dan could indeed refine various spiritual power threads that were also useful for condensing spirits, and a large number of spiritual power threads were refined from those five crystal nuclei. Don't look at the last few of these materials are not as large as the previous ones, but the spiritual power threads that can be refined in them are not less than the previous ones, and what is even more strange is that although these precious materials are all single-attribute materials collected from the five spirit realms, the spiritual power that has been refined inside is not all single-attribute appearance, especially the five crystal nuclei in addition to their own attribute spiritual power, there are also other attribute power in it, although Gu Xiaowu does not know what these attributes are, but he knows that they can also be used by himself.

After another ten years, he finally consumed all the materials he could use, but he only roughly woven a thin net outside the spirit cave, not as much as the red thread that he had previously made with a piece of fire refining yuan crystal.

The second layer of exercises means that you have to weave it like this until the mana can be condensed into a thick shield outside the spirit cave, which is equivalent to the mana shield released by your own magic weapon outside your body, but now you have a bare layer of net outside the spirit cave, where is the performance of mana condensing on it. During this time, he was also accumulating mana while refining materials, and the mana on his body was also slowly increasing, but there was no mana true element that could be attached to those refined silk threads, but all returned to the spirit that had expanded by one point****** and now the problem he faced was that there were no materials on his body for breaking through Ning Ling and Cheng Dan, only a bunch of precious materials for refining weapons remained, and his cultivation was only promoted to the late stage of cave building, and he was still far from the real spirit condensation. This point of cultivation will not be able to collect useful materials at all, and one will cause trouble if you are not careful.

Gu Xiaowu picked up a piece of refining materials and tried it, and found that although there was spiritual power in it, it was not something that he could use, and the spiritual power extracted from these refining materials was very violent and unstable, which was just the opposite of the honest and stable spiritual power of those cultivation materials. He had a headache, this place is rich in spiritual energy, it is a good place for retreat and cultivation, but the resources used for condensing the spirit are not easy to collect, after returning to the sect, he can try to collect some resources, but it is difficult to have such a good spiritual land for his own use.

Gu Xiaowu looked at the various refining materials spread all over the ground, and his eyes suddenly fell on an item, which was the thick stone pillar that had been thrown aside and had not been studied.

The closed valley located in the Zhongling Canyon of the Five Spirit Realm was inadvertently broken into after the fifth-order stone spirit comprehended the earth escape, and it directly regarded this closed valley as its own territory, which was used to avoid the five spirit realm training of the sect once every ten years, and also dug a secret passage in it to lead out of the Zhongling Canyon. In the end, he didn't expect that he would unfortunately fall into the hands of Kou Yuhuan, and only after surrendering did he reveal the secret to Kou Yuhuan, but he cheapened them and collected all the precious resources in it before leaving. And this stone pillar is a heavy treasure that Shi Ling and Kou Yuhuan mentioned, a stone pillar that can continuously absorb the growth of the spiritual power of the five elements.

The enclosed valley itself is strange, and what is diffused in it is not a single earth-attribute aura, but a dense five-element aura, and what grows inside is all cherished tens of thousands of years of elixir spirit wood, but there are not many materials of various kinds, so Gu Xiaowu only has such a large number of ten thousand years elixir in his hands.

When Gu Xiaowu saw this stone pillar, it was not as ordinary as it is now, but the surface was full of colorful and strange patterns, which were very similar to the patterns that appeared on those 10,000-year-old elixirs. In order to take it out, he and Kou Yuhuan had a lot of thoughts, but this thing was extremely heavy, and the surrounding five elements of spiritual energy were even more rigid around the stone pillar, with a sense of fixing it underground, even if Kou Yuhuan used the Misty Sound Sword, he couldn't cut through the spiritual power layer on its surface. In the end, Gu Xiaowu had a whim, and quickly arranged the Five Elements Clutch Array around the stone pillar with various single-attribute materials collected near the stone pillar, and finally cut off the stone pillar to absorb the Five Elements Aura, and then pulled it out from under the ground. Who knew that the stone pillar was pulled out, but the spirituality on its surface disappeared in an instant, turning into an ordinary stone pillar, which made the two of them amazed for a while, but as long as a trace of mana was injected into it, it would become extremely heavy, and it was definitely a rare "heavy treasure". Since Gu Xiaowu obtained it through the array, Kou Yuhuan left it to him and told him to keep it properly, and not to tell anyone the secret of this stone pillar.

This thick stone pillar is also a kind of material, I don't know if it is for cultivation or refining, Gu Xiaowu is now in urgent need of materials for cultivation, so I am ready to see if there is a stable spiritual power that can be used in this stone pillar. This stone pillar has only been taken out once since he got it, and he was complained by Yun Zi, this time he was unwilling to move it, and sat directly next to the stone pillar lying on the ground, one hand on the surface of the stone pillar and silently ran the second layer of exercise mantras.

A trace of mana passed into the stone pillar with his palm, although the surface of the stone pillar did not change in the slightest, but it sank deeply into the ground for more than half of it, which can be seen that it has not changed at this time, the prohibition in the attic is even more wildly flickering, and the spiritual light on the ground flickered and dimmed. Gu Xiaowu hurriedly took back this trace of mana, and at the same time, he also took out a trace of golden spiritual power, and was smoothly pulled into the palm of his hand by his own trace of mana. Xiao Wu immediately closed his eyes and meditated, his own black and white mana true yuan wrapped the golden spiritual power and swept around his body together, immediately his forehead was bruised, forcibly controlled the trembling of his body, and only after an hour did he pull the golden spiritual power into the dantian and arrange it in the silk net outside the spirit cave, and his body was also covered in hot sweat, and there was also a trace of fatigue on his face.

What was extracted from this stone pillar was a trace of pure metal spiritual power and it was very stable, but he didn't expect that this stone pillar was the spiritual condensation material he was most eager for now. Xiao Wu was excited and immediately began to meditate to recuperate, after all, the refining just now had caused a great burden on his body and spirit, and he had to wait for him to recover before he could continue to cultivate. After recovering not long after, he continued to extract the spiritual power in this stone pillar, but this time it was no longer metallic spiritual power, but a trace of blue water-attribute spiritual power, and he was quickly pulled into his body .......