Bab 739: Chapter 250: Cave Heaven and Blessed Land! Gathering Qi into Beasts!_3

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That was distinctly a fist-sized Spirit Stone, except this one was peculiar, with its entire body shimmering in gold, and the naked eye could see the immense Spiritual Energy flowing within it!

"Spirit Stone... is it a superior-grade Spirit Stone? Such a large one at that?"

The Mysterious Yin Demon Girl couldn't help but be shocked.

Spirit Stones, only birthed after long eras and in places abundant with Spiritual Energy, contain vast amounts of Spiritual Energy. Inferior-grade Spirit Stones are most common, while middle-grade ones are already quite rare.

As for superior-grade Spirit Stones, they are formed only in Cave Heaven and Blessed Lands with highly concentrated Spiritual Energy over an extended period.

"Such a large superior-grade Spirit Stone, as big as a fist... Converted to standard inferior-grade Spirit Stones, it would be worth tens of thousands!"