Heaven Grade Source Spirit Stone

In the end, there was still a layer separating them. Huo Hai merely received the sensations transmitted by the Star Gu. He had no direct feeling for the true intensity of the spiritual energy, so he could only make excited guesses.

By the time they reached the central area, if nothing else, at least more and more Earth-Grade Source Spirit Stones were appearing. Even among Earth-Grade Source Spirit Stones, their inherent quality differed. By looking at the length and thickness of the golden lines on them, one could roughly judge their true value. These were at least mid-grade, and some were even top-grade.

Of course, the grading of Source Spirit Stones was not so strict. As long as one fused with an Earth-Grade Source Spirit Stone, and had a suitable Spirit Art and environment, one would certainly be able to reach the level of an Earth Grade Spirit Master. But that was not the end.

The higher the grade of the fused Earth-Grade Source Spirit Stone, the easier it would be to break through after reaching Earth Grade. If the Earth-Grade Source Spirit Stone was of low grade, it was not that one could not break through. It was simply relatively more difficult.

But if one fused with an Earth-Grade Source Spirit Stone, it would be exceedingly difficult to break through and reach a Heaven Grade Spirit Master. No matter what quality the Earth-Grade Source Spirit Stone was, the difficulty remained the same. This was equivalent to breaking through one's own limits.

Since ancient times, there had been very few who could break through the restrictions imposed by their Source Spirit Stones and reach a higher level. Moreover, most of them had fused with Profound-Grade Source Spirit Stones and broken through from Profound Grade to Earth Grade. To fuse with