"Progenitor emperor power? The Original Demon Cave?"
Li Hao froze. He had never heard of either.
Standing beside Li Hao, Shi Miao said softly, "Progenitor emperor power is a power that those with an Emperor Venerable's bloodline have an exceedingly small chance of awakening when they advance to the Immortal King Realm. Only those in the Immortal King Realm can barely withstand and wield it. It is the Progenitor Sealing Power contained within emperor blood, and it is terrifying. Once awakened, progenitor emperor power can rival the most powerful sovereign domains in the Immortal King Realm!"
"Sovereign domains?"
Li Hao was puzzled. Here was yet another thing he had never heard of.
Shi Miao was exceptionally patient with Li Hao. She knew he had only just entered the Immortal King Realm and remained unfamiliar with much of its common knowledge. Unlike other Immortal Kings,
he had not spent endless years cultivating, leafing through this and browsing that in his spare time until he had a thorough grasp of all sorts of information.
"Sovereign domains are the Peak World Domains of the Immortal King Realm!"
Shi Miao told Li Hao, "The high-grade world hearts I mentioned earlier, such as the various world hearts derived from the nine orders, including your Time Reversal World Heart, all belong to the high-grade category!"
"A high-grade world heart must be unique, its heart standing level with heaven."
"World hearts such as reverse time and beyond-world are all high-grade. They possess the power to defy heaven and earth and already count among the Peak World Hearts!"
"But beyond these Peak World Hearts, there is an even more terrifying kind. It appears so rarely that it is almost a legend! Once such a world heart takes shape,
it becomes the king's path of heaven and earth, capable