But Death Calamity was not yet the Yellow Springs Imperial Riders' most terrifying ability. Their most terrifying ability was the evolved Undead Catastrophe, though it was no longer called Undead Catastrophe now, but Netherworld Descent.
Undead Catastrophe could be said to have once been the Yellow Springs Imperial Riders' most terrifying ability, as well as one of Great Qin's strongest methods.
It could turn countless dead people into skeletons in an extremely short time, forming a boundless ocean of bones that carried an endless aura of death and possessed the terrifying power to destroy the world.
Back then, Great Qin's use of Undead Catastrophe had sparked a disaster that killed who knew how many people. It had also been used in battle against the Huaxia Northern Alliance, ultimately inflicting devastating damage upon northern Huaxia. After that, no force in northern Huaxia was able to halt Great Qin's rising stride.
Undead Catastrophe had been an exceedingly correct step for Great Qin. Once northern Huaxia no longer posed a threat, Great Qin developed rapidly without cease, eventually successfully unifying northern Huaxia. Using it as a foundation, it then swallowed all of Huaxia and achieved grand unification.
Had there been no Undead Catastrophe back then, Great Qin, under the suppression of the Huaxia Northern Alliance, would have faced dire circumstances even if it had not perished. It absolutely would not have developed so swiftly, nor would it be as powerful as it was now.
Thus, Zhao Fu also felt gratitude toward the Yellow Springs Imperial Riders. When they had been in danger, he had not hesitated to use his own blood of origin to help them.
Zhao Fu's blood of origin was immensely precious and had a great many uses. It was undoubtedly a rare treasure of heaven and earth; there was no