After his Tianmu supernatural power broke through to the fourth level, ordinary ice-horn snake gallbladder was no longer of any use to Chen Lei.
After that, Chen Lei did not continue to waste these precious ice-horn snake gallbladders and let Bai Ying and others take them. After taking the ice-horn snake gallbladders, Bai Ying and others successively evolved the divine power of Tianmu. Moreover, with a sufficient number of ice-horn snake gallbladders, their divine power levels of Tianmu broke through to the third level.
In this way, ordinary illusions, mazes, etc. will no longer have any effect on Bai Ying, Hong Wen and others.
Chen Lei extracted several extremely pure star sands from the Star-Eating Worm King. Each grain of star sand was extremely heavy and shone with starlight.
Chen Lei directly used the divine furnace diagram in the Juntian diagram to refine the star sands. Finally, he refined the star sands into a star sword.
During the refining process, Chen Lei engraved and imprinted all the rules of heaven and earth that he had mastered into this star sword.
When the Star Sword was refined, the sword light was shocking, and the sound of the sword shook the entire sea of stars. Countless runes rushed out of the Star Sword and turned into starlight, surrounding the Star Sword.
Afterwards, Chen Lei took the Star Sword in his hand and observed it carefully, and found that this Star Sword had reached the ninth level, which is the level of Heavenly Monarch.
Such a star sword is said to be of unparalleled power.
Next, Chen Lei continued to use various materials to refine talismans and make puppets. With the help of the Juntiantu, the power of the talismans he refined and the puppets he made were greatly improved. His level of refining talismans and making talismans had a qualitative leap and improved significantly.
After careful inspection, Chen Lei discovered that the reason for such great progress was directly related to his ability to communicate with the upper realm through his Hongdong Shengyuan Sutra and utilize the spiritual energy of the upper realm.
If it weren't for the spiritual energy from the upper realm, the treasures he refined would not be so powerful.
In the end, Chen Lei refined hundreds of talismans, spiritual treasures, puppets, pills, etc. before stopping.
Chen Lei discovered that the effect of refining these spiritual treasures, talismans, etc. on improving his cultivation was not too obvious.
This made Chen Lei lose interest.
Now, Chen Lei's cultivation has reached a bottleneck.
Originally, Chen Lei's cultivation did not have any bottlenecks. As long as he accumulated enough spiritual energy, he could break through to the next level.
However, now that he has communicated with the upper realm and has the spiritual energy of the upper realm in his body, a bottleneck has reappeared. If he wants to break through the realm, he needs to use the spiritual energy of the upper realm to break through. The spiritual energy of the middle realm has become less and less effective on Chen Lei.
In fact, Chen Lei also had a bold idea in his mind at this time, which was to transform all the middle-realm spiritual energy in his body into spiritual energy of the upper realm.
Only in this way can his strength be further improved.
However, the cultivation of spiritual energy in the upper realm was too slow, which made Chen Lei unbearable.
These days, he has been looking for ways to speed up the absorption of spiritual energy from the upper realm.
However, there is really no experience to be gained in cultivating spiritual energy in the upper realm, and Chen Lei has not found any effective tricks for the time being.