"H-He went in?"
Saint Venerable Yaori and the others had originally been ready to intervene, because the phenomenon Xiao Yan triggered this time was the most violent in all these years. Quite a few people had even faintly sensed a powerful force on the verge of breaking through space.
The Medicine Emperor Inheritance was similar to the Heavenly Emperor Inheritance of the Ancient Heavenly Palace. In a sense, this inheritance was actually the tomb of the Ancient Medicine Emperor. Back then, when the Extraterritorial Evil Clan invaded, they destroyed far too many inherited factions, and far too many people died.
The Ancient Heavenly Palace had still not opened even now precisely because the Ancient Heavenly Emperor had perished together with that top-tier Heavenly Demon Emperor called the Nine Corpse Heavenly Demon Emperor, both falling within the Ancient Heavenly Palace.
During the final battle, in order to prevent the Nine Corpse Heavenly Demon Emperor from wreaking havoc, the Ancient Heavenly Emperor sealed off the Ancient Heavenly Palace. Even now, the Ancient Heavenly Palace was still hidden within the endless void, and no one knew its exact location.
The Ancient Medicine Emperor had been the same. Back then, a powerful Heavenly Demon Emperor led a great clan in invading the Ancient Myriad Herbs Prairie and fought the Ancient Medicine Emperor until heaven collapsed and the earth split. In the end, the Ancient Medicine Emperor was somewhat outmatched, and used the same method as the Ancient Heavenly Emperor, sealing himself and the Heavenly Demon Emperor together inside the Medicine Emperor Sacred Palace. With the help of the Medicine Ceremony, he ultimately refined that Heavenly Demon Emperor completely.
And with every Ancient Medicine Ceremony, the Pill Qi produced by alchemy would imperceptibly flow into the Medicine Emperor Sacred Palace, helping to finish refining that