A spirit weapon was the soul of a divine weapon.
As Huang Mei put it, the secret art for refining spirit weapons had long since vanished. The only way to obtain one was to seek it out in ancient divine weapons.
Once a spirit weapon was refined into a magical artifact, it became a spirit artifact.
Spirit artifacts were immensely powerful and could be used in conjunction with a Spirit Endowment Supernatural Ability. It was said that even among Human Immortal Realm cultivators, a spirit artifact was a treasure one could only hope to encounter, never seek.
Immortal King City was reputed to be both a hidden cultivation sanctuary for ancient cultivators and an ancient battlefield. Countless divine weapons had fallen there. It was said that ninety-nine percent of all the spirit artifacts in the Yin Court came from Immortal King City.
It was because he knew how precious spirit weapons were that Xu Yi had decided to venture inside and investigate.
And it was because Immortal King City would open soon that he was eager to raise his cultivation.
The city was filled with powerful experts. Though a restriction barred Human Immortals from entering, even Ghost Immortal Realm cultivators could charge in. Fourth Realm experts were already terrifying, and it was rumored that even experts on the verge of becoming Human Immortals would be there.
Moreover, the Immortal King City council had issued an explicit order: once inside, everyone was responsible for their own life and death. In other words, it was a world without order. Whether one lived or died in there depended entirely on one's fate.
As Xu Yi understood it, after years of exploration, few divine weapons remained in Immortal King City, vast as it was.
A spirit weapon was worth a fortune in this day