Suddenly stunned by the revelation of Yue Xuexia, the uncle and nephew were dumbfounded. Though their knowledge of cultivation isn't as deep as what Yue Xuexia knows, after the foreign cultivators had invaded this realm, they learned about the cultivation beyond the Mahayama Realm. They also knew that the reason why their realm wasn't utterly destroyed was all because of the laws of the heavens in this star that sealed the outsider's realm before letting them descend in this world.
Sealing outsiders' realm was the last protection the world could give to the aborigines of this star. After all, he couldn't completely prevent one from entering unless it found a backer that could back it up. Now that the Moon Goddess's soul had the power of a tribulant cultivator and her vessel possessed the strength of an Emperor Realm cultivation, the number of beings that can defeat her is lesser compared to before. Well there might be an old monster hiding in the dark.
