As Archfiend Antigonus spoke, he looked serious, but his eyes flickered with treachery.

Before Empress Nuwa returned to the Sealed Fiend Mountain, Archfiend Antigonus had transferred the Ancient Ancestor's fairy soul from the Soul Requiem Stone. At that moment, it was merely an illusion formed by Archfiend Antigonus using the fiend race's occult technique.

Archfiend Antigonus activated the Power of the fiend Soul and injected it into the Soul Requiem Stone to convince the Nine Heaven Emperor.