After dinner, Lu Weidong consciously went back to his room, as for whether to study or do something else Xu Xingkong didn't want to care, everyone has to be responsible for themselves, and it is absolutely impossible to rely on others to manage it, especially in the case of Lu Weidong, if you don't strictly manage yourself, it is estimated that the end will definitely be very bad.

Xu Xingkong finished cleaning up the housework, returned to the room and spread out the "Detailed Explanation of Spells" and began to ponder carefully, one hand spread out on the table, the palm of the hand was suspended with the Xuan Ling Bead that hid the soul of the path, and the three peach blossoms quietly rotated slowly around Xu Xingkong, he was multitasking, but the main spirit was still in the books, and the Xuan Ling Bead and the Peach Blossom Blossom were only a little bit of mental warmth.

Xu Xingkong didn't know how others warmed up their spiritual weapons, but Xu Xingkong felt that instead of pinching them in his hands, it was better to let the spiritual weapons move, just like moving his body, it was easier to get familiar with and control his body through guò exercise, in fact, the effect of this was really good, at least Xu Xingkong himself felt that this was the case.

After reading the book for a while, Xu Xingkong frowned and looked at the Xuan Ling Bead, now it will take a while to get the talisman for the array, but I don't know how long it will take for the recovery of the small road, although Lu Tongda promised Xu Xingkong that he could go to the hospital at any time to collect the Yin attribute Yuan Ling, but Xu Xingkong didn't have so much time, and he didn't feel at ease by handing over the Xuan Ling Bead to someone else to take care of Xu Xingkong.

Sighing slightly, Xu Xingkong raised his other hand and drew some mysterious trajectories around the Xuanling Bead, and whispered in his mouth:

"Returnees. ”

The thin spirit that was originally free around began to turbulent as Xu Xingkong cast his spell, and then began to speed up with the movement of Xu Xingkong's fingers, gradually forming the appearance of Star Swirl, and in the center was the green Xuanling Bead, which looked like a growing galaxy, mysterious and beautiful.

Unfortunately, this beautiful sight only lasted a few seconds, and then faded away.

"No, the environmental energy is still too small, do you really want to go to the hospital to squat?"

Xu Xingkong frowned, as if talking to himself. It's like complaining about the path in the Xuanling Bead.

After a while, Xu Xingkong suddenly got up and walked quickly to the window, looking at the brightly lit courtyard of the community, the corners of his mouth slowly curled.

Xu Xingkong's train of thought was correct. Why did Pengcheng's super-large Guiyuan Array be set up underground? On the one hand, it was of course for the sake of secrecy, and on the other hand, it was also related to the activity law of the Yuan Spirit.

Yuan Ling is not a substance, but in the concept of human beings, it is easy to be regarded as a light thing, but this is not the case, Yuan Ling seems to have the characteristics of sinking. The closer you get to the center of the earth, the denser the primordial spirits become, which may have something to do with the temperature of the center of the earth.

Of course, this is just Xu Xingkong's speculation, presumably the truth and knowledge have already been studied, but unfortunately Xu Xingkong has not been systematically studied, if he wants to know these basic knowledge, he can only exchange the contribution value, and now the contribution value he listed is very long, and for the time being, these knowledge cannot be ranked.

Straight to the point. Xu Xingkong found that the Yuan Kundalini energy downstairs was much stronger than the upstairs, not to mention that the space downstairs was open, although the Yuan Spirit was not blocked by matter, but the wonderful thing was that the Yuan Spirit did not like to shuttle between the walls, they seemed to prefer to move along the open space.

The truth in this may involve the basic relationship between the primordial spirit and matter, Xu Xingkong can't delve into it, he only needs to recognize the facts now, and as for the principle, he can wait for the future to study and learn slowly.

Xu Xingkong wandered around in the huge garden of the community, as if he was taking a walk after dinner, but he was chasing the direction where the Yin Attribute Yuan Spirits gathered.

I don't know if I don't look at it. I was shocked when I saw it.

Xu Xingkong found that this community that had lived for a period of time did not seem to be simple, the movement of the Yuan Spirit here turned out to be regular, although it was not as compulsory and strict as the formation, but the free Yuan Spirit obviously tended to be classified and active. The halos of different colors in the community all converge in the same direction, so that several convergence points are naturally formed in the community.

Xu Xingkong didn't go to other convergence points to check, but just followed the aura of the Yin attribute Yuan Spirit to the convergence point of the Yin attribute Yuan Spirit, which was behind the activity center in the community.

This place seems to be rarely frequented, after all, it is already a corner of the community. Not far behind the activity center is the fence of the community, and on the other side of the fence is a green belt planted with many tall trees.

There is a distance of about ten meters between the activity center and the fence, there is no road here, only a lawn, on which seven tall cypress trees are planted, Xu Xingkong is the first time to know that there are so many tall cypress trees in the community.

After the originally gathered Yin Attribute aura reached the cypress area, there were signs of scattering, like the flow of water hitting the rocks, bursting countless snow foam, and then scattered and disappeared to the ground, and some flew away to the area outside the fence.

"Is this the needle breaking in Feng Shui?"

There is a saying in Feng Shui that needle-like things have the ability to break apart, which can break the fierce qi and prevent the gathering of yin and evil qi, which is also one of the reasons why there are more cypress trees planted in the cemetery, and now Xu Xingkong has seen this magical scene with his own eyes.

Not only did he understand that the theory of feng shui was not nonsense, but he also understood what was going on in this community, which had a feng shui bureau carefully arranged!

Xu Xingkong was shocked for a while and then smiled, it's good to have a feng shui bureau!

This is clearly the predecessors planted trees and the later people enjoy the shade, and the Feng Shui Bureau gathers the Yin attribute Yuan Spirits of the entire community here, because these Yin Attribute Yuan Spirits will have some adverse effects on people, however, Xiaolu needs these Yin Attribute Yuan Spirits very much, although the strength of the Yuan Spirits gathered here is not very strong, but it is always much more than the ones that Xu Xingkong gathered in the room with the Returning Yuan Technique!

Xu Xingkong looked left and right, and saw that no one noticed him, and there was no monitor facing this side, he quietly turned the corner of the room, came to the bottom of the seven cypress trees, and looked up at the Yuan Ling halo that fell like snow, Xu Xingkong grinned.

"Xiaolu, we're rich!"

Xu Xingkong took out the Xuanling Bead and let the Xuanling Bead levitate in front of him, then calmed down, and slowly raised his hands, this time he planned to cast a spell with both hands.

"Returnees. ”

A small whirlpool formed with the movement of Xu Xingkong's hands. Unlike before, this little Star Swirl did not dissipate, but slowly expanded, engulfing the surrounding snowflake-like Yin Elemental Spirits. Circling around the Xuan Ling Bead rapidly, the expansion continued for a short time before stopping, and as the range of spells was still very limited, the Yin Elemental Spirit soon became weak, and then Star Swirl began to slowly fade and dissipate.

Xu Xingkong scratched his head. He said to himself, "It takes more Genshin energy to expand the range, but the vortex rotation seems to be too slow and unbalanced, which will reduce the efficiency." ”

Xu Xingkong pondered for a while, recalled his own spell casting process just now, and carefully pondered the instructions in the "Detailed Explanation of Spells", and found that those descriptions were really word-for-word, which was very interesting, but compared to the situation just now, it still seemed that it was not accurate enough. Perhaps, everyone casts a spell differently.

At first, Xu Xingkong was to collect Yin Attribute Yuan Spirits for Xiao Lu, but soon after, Xu Xingkong became obsessed with improving spell casting techniques and improving spell casting efficiency.

Again and again, the technique of fine-tuning the casting technique, and comparing the output of the Yuan Shen energy again and again, the spell Star Swirl formed by the Returning Yuan Technique was also more beautiful and more perfect each time, and the duration and scope of the spell gradually expanded, from the beginning to cover only half a meter of radius, and later the same Yuan Shen was used. However, it can expand the coverage of the Returning Technique to one and a half meters, and the effect is more than twice as much.

Xu Xingkong had a great time, completely immersed in the fun of exploration, he didn't know that he was creating a terrifying thing.

First of all, an exceptional place is the time recording to improve the proficiency of the spell. Generally speaking, it is not difficult to learn a spell like a return technique, but it is likely to take a lifetime to use a spell well, and each increase in the effect of casting a spell is quite time-consuming and energy-consuming.

Secondly, in the cultivation circle, there is a complete and rigorous theory for the evaluation of the ability to perform spells. The metric that evaluates the ability to cast spells is called the efficiency of spells, and trying to improve the efficiency of spells is another common problem.

The casting effect of a spell reaches thirty percent of the theoretical value, that is, the casting efficiency reaches thirty, it can be regarded as having learned this spell, less than thirty, can only be regarded as a rookie, and reaching forty is considered to be proficient in the spell, and being able to reach fifty is to enter the house, sixty is called the peak, which is basically a limit, but people who can reach this level are rare, and they are generally masters with names and surnames to have this level of spellcasting.

If you want to improve the efficiency of spell casting, you can't just rely on time to do it, nor can you increase the strength of the Yuan Shen at the same time, which is also related to everyone's comprehension qualifications, and it is not that you can reach the peak when casting a certain spell, and you can cast other spells at the same level, and the spell casting skills of different attributes are not the same.

All in all, cast efficiency is an important but difficult metric to improve.

However, Xu Xingkong easily broke these two records, in a short period of time, he increased the efficiency of the Returning Yuan Technique to nearly seventy percent of the efficiency, which is definitely a shocking thing, if this secret is known by other cultivators, it is estimated that Xu Xingkong will either be arrested and sliced for research, or will be directly destroyed by the guy who is crazy with jealousy.

Of course, he didn't know that there was such an indicator, let alone how to calculate and improve this indicator, but he really couldn't continue to improve the rejuvenating technique he cast, and he thought that the reason for the bottleneck might be the limitation of his Yuan Shen strength.

Xu Xingkong, who didn't know that he had just done something shocking, was in a good mood, smiling and waiting for the Yuan Spirits that had been absorbed around him to gradually recover, and then performed the Returning Yuan Technique again, looking at the beautiful Star Swirl with satisfaction, watching the endless stream of Yin Attribute Yuan Spirits being devoured by the Xuan Spirit Beads, looking forward to when Xiao Lu would recover, and at the same time simulating in his heart how to explain this qi to Xiao Lu, and convincing her to accept this fact and stay by her side. (To be continued.) )