The Demonic Beasts that could sneak into the Grotto-Heaven were not particularly powerful.
With this group of immortals standing guard, Xu Changxing and Li Changge could finally unleash their full strength again to slay Abyss Great Overlords farther afield.
As the two ventured deeper, the Great Overlords they encountered grew steadily stronger.
But for Xu Changxing as he was now, they still posed no difficulty whatsoever.
One powerful Abyss Great Overlord after another was easily slain by Xu Changxing.
Thus, after another few hundred years, this Grotto-Heaven rapidly expanded to cover a radius of two million li.
In this brief century, several Heavenly Immortals broke through their realms amid repeated battles and attained the Dao of Golden Immortals.
Even the Golden Immortals gained considerable benefits from the Grotto-Heaven's continuous expansion.
Several of them advanced rapidly in their cultivation realms after personally sensing the fluctuations of the underlying Great Dao.
This was an advantage they could never have enjoyed in the Immortal Realm.
After all, the Immortal Realm had long since taken shape, and its underlying Great Dao was completely hidden, almost never revealing itself.
For those Golden Immortals to perceive the workings of the Underlying Great Dao of the Immortal Realm, they generally had to wait for a fortuitous opportunity.
But because this Grotto-Heaven was expanding outward at every moment, the fluctuations of its Great Dao were exceptionally active.
Even Daoist Tianlu, who had long since attained the Dao of Taiyi, benefited considerably from the process.
In these brief few hundred years, he broke through two minor realms in succession and touched the threshold of middle Taiyi.
Almost every immortal reaped substantial gains as this Grotto-Heaven expanded.
Naturally, Jiang Yao was among them.
By now, Jiang Yao had already touched the threshold of becoming a Taiyi Immortal Lord.
This was