Lin Zheyu thought that at most it would be worth five hundred medium-grade Spirit Stones, no more.
This was still due to the skull's hard material, far exceeding ordinary Magical Artifacts, and the Witch Race power contained within, which had great research value.
"Three upper-grade Spirit Stones, should I agree to this?"
Lin Zheyu rubbed the skull, eyes reflecting a thoughtful look.
He was somewhat tempted.
Three upper-grade Spirit Stones were no small number, and many Foundation Establishment Peak cultivators couldn't even produce a single upper-grade Spirit Stone.
Their acquired Spirit Stones were almost entirely exchanged for Cultivation Resources, converted into their own strength, with barely any savings.
"Better to drag this out for now."
Lin Zheyu pondered for a moment and said to himself silently.
