To be honest, before this, Ye Zhen had never imagined that one day he would be able to capture a Mid Dao Realm expert alive.
Even if the Mid Dao Realm Demon Venerable's primordial spirit and physical body had been separated when he was captured, it was still extraordinarily rare.
The reason was actually very simple.
Once a martial artist forged a primordial spirit, seventy percent of their cultivation would be concentrated within the Mystic Palace centered around that primordial spirit.
When a martial artist first broke through into the Mystic Palace Realm, their Soul Power would fill every corner of the Mystic Palace.
As their soul cultivation steadily improved and they forged a primordial spirit, the primordial spirit and Mystic Palace would become one.
Under such circumstances, even if a martial artist's physical body was destroyed and only the primordial spirit escaped alone, as long as it found a suitable body to possess, it would not take long to recover ninety percent of its former combat strength.
Thus, after Dao Realm experts with family backing, sects, or established origins forged their primordial spirits, the most powerful figures in their families or sects would grant them a Primordial Spirit Protection Technique.
This Primordial Spirit Protection Technique was generally of little use, but when that Dao Realm martial artist encountered a life-threatening crisis, it could be activated, allowing them to flee millions of miles in an instant and escape with their lives.
Back then, the Jade Scale Dragon King's primordial spirit had relied on the Primordial Spirit Protection Technique to escape alive before Ye Zhen and Mountain God Yi Xun.
It was said that the Primordial Spirit Protection Technique within the Jade Scale Dragon King's primordial spirit had been bestowed by a Dragon Race elder of the Four Seas Dragon Court.