What Lu Ye did not understand was why the situation in Immortal Yuan City had remained this way all along, and where the Insect Race of the Great Insect Mystic Realm had come from. They could not possibly be remnants from the Pre-Nine Provinces Era, could they?
From what he had seen, the alien armies that came to invade had always been held at bay beyond the borders by cultivators of the Pre-Nine Provinces Era. There had been no possibility of them entering Nine Provinces at all.
An ethereal voice rang out. "When the cultivators of ancient Nine Provinces refined me, they gave me two tasks: protect Nine Provinces and protect the Human Race. Although I possess the ability to conceal a world's aura, allowing Nine Provinces to avoid, to a certain extent, the chance of being discovered by powerful enemies, if they come too close, there is still a possibility of discovery."
That was easy enough to understand. When cultivators searched for enemies, their spiritual sense might not necessarily detect them, yet they might spot something with their naked eyes.
The Heaven's Mystery Disk could only conceal the aura of a world's existence; it could not make Nine Provinces vanish into the starry sky.
Thus, if one came close enough, one could still see the existence of the Nine Provinces World.
"Over five thousand years ago, a relatively small Insect Nest passed near Nine Provinces. It detected Nine Provinces' existence and began invading it, sparking a great war. Although the Cultivation World of Nine Provinces exterminated that Insect Nest at the time, it also suffered grievous losses. Moreover, Nine Provinces had yet to recover much of its vitality then, which caused flaws to appear in my ability to conceal the world's aura. To mend those flaws, more than a