章 648: An Arduous Journey

The journey to the Tianluo Continent was long and arduous. However, what was supposed to be a monotonous and boring journey, actually turned out to be a painful one, especially after Jiu You had assigned her task. It was not a simple task, this completion of the transformation of their spiritual energies, even to a Sovereign Master.

Although Mu Chen had successfully integrated the Nine Nether Flame with his own spiritual energies in the past, in comparison to transforming one's spiritual energies, the degree of difficulty could be said to be like the huge gap between the light of a firefly and the glow of the moon. Not to mention, the Flame that he was going to integrate this time was no longer the Nine Nether Flame, but the Unperishable Flame, which was countless times more powerful!