"Realm of Spirits?"
Upon hearing this, Lu Xing, Bu Nantian, and the others had expressions of confusion. Clearly, they had never heard of this secret realm.
This was quite normal, as secret realms only existed in ancient times. After the ancient era ended, they occasionally appeared in the early near-ancient period in the Nine Provinces. But now, after countless centuries, no secret realm had emerged again.
Not to mention them; even the sect master of the Beidou Sect, or the old sect master, had never entered a secret realm.
"Could you explain it to us in detail?" Lu Xing asked humbly.
Hearing this, the young Taoist from the Wuji Dao Sect nodded and said, "Ancient secret realms, some are naturally formed, and some are man-made. This, you should know, right?"
"Yes." Lu Xing, Bu Nantian, and the others nodded. They stared at the young Taoist without blinking, like students watching their teacher, not wanting to miss a word.