Xu Ying's heart and mind surged.
He naturally could not forget that crack in Tai Shang Dong Yuan.
When he had first entered Tai Shang Dong Yuan, the place had been both magnificent and strange. Immortal after immortal had been transforming into the Dao, their physical bodies and Primordial Spirits turning into the Tai Shang Dao to fill the cracks in Tai Shang Dong Yuan!
Besides that, there had been a forest of Dao trees on a staggering scale!
The forest of Dao trees had been formed because, in the ancient era, immortals had no Cave Abysses to cultivate in and had been forced to cultivate the most dangerous Tai Shang Dao. As a result, they had transformed into the Dao, their physical bodies and Primordial Spirits completely vanishing, leaving behind only Dao trees!
The number of immortals who had died in Tai Shang Dong Yuan had been enough to make one's scalp crawl!
That time, Xu Ying had found Daoist Wukong sitting before the great crack, sealing himself away. After rescuing him, he had set off the entire series of events that followed.
He had never expected that the crack in Tai Shang Dong Yuan was actually connected to the legendary Great Emperor Haotian!
"Could it be that the master of Tai Shang Dong Yuan, that Immortal Realm existence, was healing his wounds, causing so many immortals to transform into the Dao?"
Xu Ying suddenly thought of the time he and Qing Bi had entered Tai Shang Dong Yuan and witnessed so many immortals transforming into the Dao. He had assumed that the Tai Shang Dao wanted to repair the Cave Abyss itself. But now, it seemed that the master of the Cave Abyss had actually been using the lives of those immortals to heal his wounds!
Mi Yu