Coincidentally, the middle-aged man, Heaven Master Sun and his female apprentice was standing on the bench right next to them.
This middle-aged man was teaching the little girl the Desolate Heaven technique. There were other Desolate Heaven technique benches nearby, where there were many youths standing around, all learning the Desolate Heaven technique. Occasionally, a Desolate Heaven Master from the Lin family would stop by to give them some pointers.
“The Small Thousand Seal and the Mystic Crystal Hand are relatively lower grade techniques. They are easy to get started with, and neither of them are hard to become proficient in it. However, they are too shallow!”
Su Jie stood in front of the Desolate Heaven technique bench and took out a Desolate Heaven technique disk array. There was a jade-green desolate bone on the disk array.
The desolate bone was about a foot long. It was of good quality, but the Power of Desolates within it was slightly chaotic. It was probably a general-ranked desolate beast’s bone.
Su Jie casually tapped his finger and the desolate bone began to tremble violently. The Power of Desolates within it was instantly extracted by Su Jie.
Yi Yun could, with his naked eye, see that the desolate bone begin to change color. It went from its original jade-green color to grayish-white.
And correspondingly, the energy light blob that appeared on Su Jie’s fingers were clearly the energy essence extracted from the desolate bone. It had all been gathered onto Su Jie’s hand.
This technique of extracting energy made Yi Yun amazed. It was done in a very smooth and simple fashion.
If Yi Yun used the Purple Crystal to do it, he would still not be able to do it as fast as Su Jie.
Although the Purple Crystal’s control of energy was peerless, Yi Yun’s control of the Purple Crystal was still far from perfect.
What the Purple Crystal was powerful at, was that it could work with energy from all sorts of levels, be it normal desolate beasts, primordial herbs, the sword and saber tomb’s origins energy, or even the sealing energy in the Pure Yang Sword Palace. All of them were on equal footing to the Purple Crystal.
It was very easy for Yi Yun to absorb any of these energies by using the Purple Crystal.
However, what was a bit more difficult for Yi Yun was activating the Purple Crystal and the process of controlling the Purple Crystal.
With Yi Yun’s current mental strength, it would not be that easy to control the Purple Crystal. Hence, he was unable to do like Su Jie and easily extract all of the energy from a desolate bone in an instant.
Yi Yun’s advantage was that, be it extracting the energy from normal desolate bones or primordial species desolate bones, it was the same. Probably, to the Purple Crystal, all of these energies were of too low a level, so low that it could not distinguish between them.
This was equivalent to Yi Yun using a sledgehammer to crush a chicken’s egg and a quail’s egg. Using a sledgehammer to crush them both is simple. However, swinging the sledgehammer is what was most difficult.
Su Jie held the green energy blob in his hand as he glanced at Yi Yun before lazily saying, “Kid, watch well. This is the Mystic Crystal Hand. If you cannot learn it even after I do it a few times, then do not blame me for not teaching you.”
As Su Jie said, his fingers began to move. Seals were sent flying as they formed beautiful patterns in the air.
Yi Yun focused as he held his breath.
He opened the Purple Crystal’s energy vision. Through the vision, Yi Yun could clearly see the origin energy’s flow within every seal that came from Su Jie
It was naturally different to use the energy vision compared to using his naked eye to look at Su Jie’s actions.
The naked eye still needed one to gain insight and understanding. However, with the energy vision, he could see the movement of the energy directly.
In fact, the so-called seals were only runic lines condensed from energy. By seeing this energy, one could also see the origin of the laws within the runic lines.