Rumble!
While Xiao Yan was wholeheartedly absorbing the Energy Core within Xiao Xuan's tomb, deep within a void space in the Northern Region of Central Province, lightning flashed, thunder roared, and wild winds swept through the surroundings.
Yet Lin Feng, seated cross-legged in the void, paid no attention to the dense storm clouds overhead or the nine-colored lightning that flickered within them like enormous dragons.
At this moment, all of his attention was fixed on the emerald-green hall before him.
More precisely, it was fixed on the dark gray pill inside the giant cauldron.
After all, he had worked so hard for so long solely for this Cold Origin Spirit Pill within the medicinal cauldron.
If anything went wrong now, he would be furious to death.
Besides, Dan Chen and Cao Ying had gone to great lengths just to obtain this single set of medicinal herbs.
If this failed, he would have no ingredients left to refine another pill.
Especially the cold-attributed Magic Core within it. Rather than using the ice-attributed Magic Core of a Ninth-turn Dou Zun magical beast that the two women had obtained, he had thrown in the Magic Core Qing Lin had given him—the core of a High-level Half-Saint Nine Netherworld Underworld Python.
As for the origin of that High-level Half-Saint Magic Core, there was no need to say more. It had belonged to one of the two Half-Saint Nine Netherworld Underworld Python Clan experts Zhao Yuan had once brought Qing Lin to the Beast Region to control in order to revive himself.
Back then, that High-level Half-Saint had been killed to revive Zhao Yuan. His blood essence had been used for Zhao Yuan's resurrection, while Qing Lin had given the Magic Core to Lin Feng.
This time, Lin Feng had used that Magic Core.
Boom!