Teacher Lan Qing had used this Spirit Treasure to imprison the Sinking Sand Demon Emperor's Primordial Spirit and demon beast soul. Since the two had agreed on the terms, Ye Han would keep it temporarily. Once he had absorbed the Sinking Sand Demon Emperor's Primordial Spirit and demon beast soul with the Thousand Illusion Heavenly Bell, he would still have to return the treasure to Teacher Lan Qing.
In truth, Ye Han had not wanted to haggle with Teacher Lan Qing like this. After all, he was not particularly short of other treasures, and he could even have let Teacher Lan Qing have the Exquisite Treasure Pagoda...
But! How long had they been inside the Heavenly Secret Hall before encountering a terrifying existence like the Immortal-Thief Outsider Race? Even someone as fearsome as the Sinking Sand Demon Emperor had been injured in the Heavenly Secret Hall. Otherwise, Teacher Lan Qing would not have found it so easy to kill him...
That was why Ye Han had thickened his skin and asked Teacher Lan Qing for the Sinking Sand Demon Emperor's demon beast soul and Primordial Spirit...
A Demon Emperor-level demon beast soul and Primordial Spirit was exceptionally hard to come by. Moreover, after all this time spent refining it, his Thousand Illusion Heavenly Bell had completely refined and absorbed the demon beast souls and Primordial Spirits of the Demon Emperors and Demon Kings it had previously taken in, increasing its might considerably...
The power Ye Han could unleash had also increased by somewhat less than half.
More importantly, over these years, Ye Han had remained in seclusion in the Azure Profound Sect, cultivating in preparation for entering the Heavenly Secret Hall with Teacher Lan Qing again. He had no longer gone down the mountain to hunt Demon Beasts or venture