If Xiao Ding really has any ability to defy the sky, let the lower grade spirit stones continue to be filled with aura, and upgrade them to the middle grade, then he will no longer have to worry about the problem of insufficient spirit stones.

With such a sweet dream, Sun Yunhao threw a low-grade spirit stone into the Dan furnace, and then closed the lid of the Dan furnace.

After a stick of incense, Sun Yunhao was a little impatient, lifted the lid of the Dan furnace, and took a closer look, the aura inside was indeed a little richer than before, but it was not too much.

"Is it because there is not enough time?" Sun Yunhao thought like this, in the past two days, he had been experimenting with this Xiaoding, and he was also a little tired, so he simply closed the lid of this Xiaoding and pretended to sleep.

In his sleep, Sun Yunhao became a monk in the Dan period, and used Baoding to force several monks in the foundation building period to flee, and one of them, a thin old man in his forties, was tortured by him to kneel on the ground and beg for mercy.

Sun Yunhao woke up like a dream, and impatiently opened the lid of Xiaoding's furnace.

A crystal clear, crystal clear spirit stone was lying quietly in the Ding furnace, exuding a faint aura, and he found that the aura of this spirit stone was more than ten times that of an ordinary spirit stone!

Sun Yunhao forcibly endured the excitement in his heart, closed the lid of the Dan furnace again, and began to refine this piece of spirit stone that I don't know if it was a low-grade spirit stone or a middle-grade spirit stone.

After a day and a night, Sun Yunhao finally felt a crystal clear feeling, although he had never seen a medium-grade spirit stone, he also knew that the energy contained in it would definitely not be much worse than an ordinary medium-grade spirit stone.

Sun Yunhao's experiment was not over, he wanted to know if there was any possibility of progress in the spirit stone.

The spiritual power in the spirit stone is still growing, as if there is no end.

Five or six days later, Sun Yunhao held a crystal clear spirit stone and looked at it carefully.

"Is this the legendary high-grade spirit stone?

Sun Yunhao held the spirit stone tightly, and slightly urged his own strength, and suddenly a huge force poured out from the spirit stone and swam in his body. Sun Yunhao immediately ran the "Pure Heart Technique", absorbing these spiritual energies and making them his own power.

It took a full ten minutes for Sun Yunhao to finally fully absorb the spiritual power in his body, and then he felt an unprecedented comfort. This short period of time is worth three or four days of his cultivation on weekdays. If he could spend a little more time absorbing all the aura in it, it would save him a few years, or even more than ten years of effort!

Sun Yunhao got the high-grade spirit stone, but his heart was calm. An item like a high-grade spirit stone was definitely not something that a Qi Refining Stage cultivator could have, and if it was known to others, it would be a catastrophe.

How could Sun Yunhao not understand the truth of his guilt. He believed that even a monk would not easily use high-grade spirit stones.

In the world of cultivating immortals, there are too many examples of killing people and overstepping goods. It can be said that most of these people fell because of the exhaustion of longevity. If it weren't for the prohibition of fighting in Jile Fang City, the presence of several foundation building period monks, and the support of the three major sects of the Wang family, the Yun family, and the Lihuo Sect, Sun Yunhao, a person with low strength who couldn't even protect himself, would not have come here.

But even so, after leaving the city of Paradise, if he is alone, or is targeted by other high-level monks, he is afraid that it will be a matter of death.

Although all major sects have declared that they will severely punish these murderers, there is no evidence, and it is impossible to find out who did it, so the severe punishment is just talk.

Then, Sun Yunhao began to think about how to use the magic weapon in his hand.

Originally, he planned to use this treasure to refine the "Spirit Sand", but this was obviously a bit tyrannical, and Sun Yunhao was also afraid that Baoding's special would be seen by others, so after thinking about it, he still dispelled this idea.

If it is used to upgrade the lower-grade spirit stone to the high-grade spirit stone, it will naturally make a lot of money, but he does not dare to use the high-grade spirit stone easily, so he can only use it for cultivation, but with his current cultivation, the aura contained in a high-grade spirit stone will take at least a few months to recover. In this way, the power of this tripod cannot be exerted to the extreme.

If it is a medium-grade spirit stone, Sun Yunhao can also use one or two pieces, but he can't use it often, so as not to attract attention. You must know that an ordinary Qi Refining Stage cultivator has a wealth of from one hundred to two hundred grade spirit stones, and only a small number of Qi Refining Stage twelfth and thirteenth layer monks have thousands of spirit stones on their bodies, and each of them is a core disciple of the major sects and big families.

In order to better understand the wonderful use of this tripod, Sun Yunhao also deliberately took out several low-grade spirit stones and conducted a detailed test. He found that it took one day to refine a low-grade spirit stone into a medium-grade spirit stone, and it took seven days to refine a low-grade spirit stone into a high-grade spirit stone.

However, after going from the lower grade spirit stone to the upper grade spirit stone, even if it is put into the small tripod, it will not be able to make the aura in it grow in the slightest, and it can only be maintained at the level of the top grade spirit stone, which shows that the refining effect of this tripod seems to have a limit.

After getting familiar with Xiao Ding's advanced effect, Sun Yunhao carefully warmed up a bunch of lower-grade spirit stones, as well as some medium-grade spirit stones, and then went out to do errands.

First of all, he went to Lingyan Pavilion first, paid the rent for five years in advance, and made it clear that he was going to retreat for a while, so that everyone should not come to disturb.

Subsequently, Sun Yunhao went to Fang Market again, bought a set of black cloaks, and replaced them with a new storage bag. This black robe is not a mortal thing, but a subtle magic weapon, and its function is only one, that is, it can isolate the divine thoughts of immortal cultivators, cover their true faces, and make it impossible for people to recognize their identity.

In the city of Paradise, there are not many people who wear such cloaks. These people are either afraid of being discovered, or they are very strange-looking and don't want people to see their true colors. It is still very cost-effective to spend twenty spirit stones to buy this magic weapon.

As for the new storage bag, it is naturally valuable, but it is a must.

In this way, he spent dozens of spirit stones, which was his largest squandering of spirit stones. He didn't dare to stay here any longer, and went straight back to his residence.

Sun Yunhao changed into a gray robe, wearing a pair of boots that were not too big or small, a black robe on his body, and a veil on his face. In this way, Sun Yunhao became the most ordinary monk in a cloak in the city of Paradise, and no one would recognize him again.

In Jile Fang City, "Lingdantang" is a large-scale pill shop. Li Yu, the head of Lingdan Hall, is an old man who is over sixty years old but looks no more than fifty years old, nicknamed Li Pingdan.